Electricity Saving Tips For Homes And Offices

Comparison of various refrigerants (R-410A, R-22, R-32, R-290, R-134A, R-600A) used for Air Conditioners and Refrigerators

By on October 17, 2016
Hindi Translation: एयर कंडीशनर और फ्रिज के लिए इस्तेमाल योग्य विभिन्न रेफ्रिजरेंट्स की तुलना (R-410A, R-22, R-290, R-134A)

While growing up in the 1990s I used to hear a lot about CFCs (or chlorofluorocarbons) and their involvement in depletion of ozone layer. There were talks that all the refrigerants that cause environmental harm will be phased out. But as the years passed by, the thought of checking if a refrigerator or air conditioner that is being purchased has environmentally friendly refrigerant or not, vanished, as the presumption was that the CFCs have been phased out and we only get environmentally friendly refrigerants these days. But is that true? Or do we really care? In this article, we will look at various refrigerants that are used in air conditioners and refrigerators that are available in Indian market.

What is a refrigerant?

A refrigerant is a fluid that is used in air conditioners and refrigerators, to take heat from the contents of a refrigerator or the room (in the case of ACs) and throw the heat out in the atmosphere. A refrigerant undergoes phase changes from a liquid to gas (on absorbing heat) and back to liquid (when a compressor compresses it). The choice of ideal refrigerant is made based on its favorable thermodynamic properties, non-corrosive nature, and safety (non-toxic and non-flammable). Although many fluids can be used to act as a refrigerant, but in 20th century, CFCs became the most popular refrigerants.

Old and Modern refrigerants

The most common refrigerant in the past was a CFC, most commonly called as Freon. Freon was a brand name for a refrigerant “R-12” by DuPont.  In the 1990s and 2000s, the CFCs were replaced with HCFCs (hydrochlorofluorocarbon) and the most common HCFC is “R-22”. 50-60% of Air Conditioners in India still (in 2016) use HCFCs. However, HCFCs are just marginally better than CFCs as they contain chlorine, which is harmful for the environment. As per Indian Government’s plan, HCFCs will be phased out from India by the year 2030.

To remove chlorine from the refrigerant, manufacturers created another set of refrigerants called HFCs (or Hydro Fluro Carbons). Although they also have the potential for global warming, but still they are better than HCFCs as they do not deplete the ozone layer. The most common HFC used in air conditioners is R-410A. This refrigerant is better than R-22 in terms of “Ozone Depletion” potential and energy efficiency, but it still causes global warming. A few more HFCs that are commonly used are: R-32 in Air Conditioners and R-134A in refrigerators. About 20-30% of the air conditioners in India still (in 2016) use HFCs. R-32 is better than R-410A in terms of global warming potential, but then it is still an HFC. As per latest news, India plans to phase out HFCs as well in next few years, and the timeline for it is still under consideration.

The most environment-friendly refrigerants that are available in Indian market currently are “R-290” and “R-600A”. They are HC or Hydrocarbons, and their chemical names are “Propane” for R-290 and “Iso-Butane” for R-600A. They are completely halogen free, have no ozone depletion potential and are lowest in terms of global warming potential. They also have high-energy efficiency but are highly flammable as they are hydrocarbons. But they are the greenest refrigerants in the market. Manufacturers, who use these refrigerants, claim that they have taken good care in using these refrigerants and the appliances are absolutely safe. In fact, most refrigerators in the Indian market are now on R-600A and there are no reported incidents of any accidents due to the same. So we can comfortably believe that they are safe.

Below is the data for Global Warming Potential of various refrigerants (source):

Refrigerant Global Warming Potential Ozone Depletion Potential
R-22 1810 Medium
R-410A 2088 Zero
R-32 675 Zero
R-134A 1430 Zero
R-290 3 Zero
R-600A 3 Zero

Conclusion

If you are someone who cares about energy efficiency and global warming, go for an Air Conditioner with R-290 or a Refrigerator with R-600A. The more you opt for it, the more the manufacturers will start using them in their appliances. Hopefully, with stringent standards and better advancements in technology, we will be able to see better refrigerants in future.

Check this link to see Top Ten Air Conditioners in India for Electricity Savings: http://wp.me/p4hAhQ-4I

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  • Sathish Ram

    Hi Abishek,

    After so many research with correct size/tonnage/std ac/invertor, still this monkey mind and my heart fluctuates and unable to come to a conclusion for my new AC purchase.

    I live in Chennai & I have been using 1.5 T Hitachi Split AC for the past 16 years. No issues with working and cooling with my present AC, but for the past 1 year I have been paying hefty electricity bills.

    Hence looking for a new AC purchase with better efficiency.

    Room Size 12*12 and ceiling height 10 with we placed in ground floor and above us three floors are available.

    Room has one queen size bed, one dressing table, one wooden wardrobe and a heavy steel wardrobe.

    AC usage – 9 hrs a day usage & 10 months compressor on and 2 months fan on.

    I have decided to go on with purchase for 1.2 to 1.5 Ton models with 5 Star specification. (I was skeptical about Invertor AC as two my friends had board failure and incurred huge repair cost.

    Now I have finalized Hitachi Zunoh I clean 1.2 ton 5 star AC with EER 3.8. Kindly pour in you thoughts on this model.
    I have seen some competitor brands saying the stainless steel filter will rust and wont last long as previous gen nylon pre filters. Kindly pour your thoughts about this.

    Meanwhile one sales rep from ONIDA insisted to go for Onida’s 1.5 ton Marvel Invertor AC which uses R410A refrigerant.
    He was well informed and I liked his informative approach with selling product based on customer needs rather than the product feature.

    Now his argument was;

    1) R410A refrigerant is better than R22 and more energy efficient.
    2) Since it uses R410A refrigerant which needs high pressure to be in liquid state when compared to R22, the components used also should be heavy to withstand the heavy pressure exerted.
    3) R410A gas absorbs more heat compared to R22, hence instant cooling.
    4) Using a stabilizer for even invertor ac would eliminate the board failure in inverter Ac’s – Is it true ?!!

    Hitachi 1.2 ton I clean Zunoh 5 star – INR 36500
    Onida 1.5 Marvel Invertor Ac – INR 41500

    Now Abishek kindly help me to find the better one out of these two for my usage (I know its comparison b/t apple and orange) but I am confused too.

    Regards
    Sathish

    • https://www.bijlibachao.com Abhishek Jain

      Here are some points:

      1) For your usage, using an Inverter Technology AC would be far better than using a regular AC.

      2) R410A is certainly far better than R22. It is more energy efficient. It has much less global warming potential. However, I do not agree to the instant cooling aspect. Cooling depends on the cooling capacity of the AC and not just on refrigerant. It is the design that impacts cooling. All in all design of the AC matters a lot and a good brand will put in better technology to handle all aspects of the system (including pressure).

      3) PCBs of inverter ACs can be impacted by Voltage Surge or Corrosion. Brands have started coming up with model that can handle both. LG’s latest models have both in their inverter ACs. BlueStar also provides corrosion protection for PCBs in their inverter ACs. You can always put a surge protector or a voltage stabilizer with surge protection feature to prevent PCB from surges. Can you check with your friends as to what was the reason for PCB failure? Was it corrosion or was it voltage surge? I mean did it get burnt or corroded?

      Brand wise Hitachi would be a better brand, but for your need I think Inverter AC is better. So if choice is between the two you have mentioned, then I would go for Onida Inverter AC. If you have slightly more budget then you can check Inverter ACs from Sharp and Daikin as well.

    • Sathish Ram

      Hey Abhishek,

      Thanks for your prompt reply!!

      Now that you said to consider better brand than Onida… I have short listed Daikin ID-FTKP 50 RRV 16 – INR 46290.

      Where I see Onida 1.5 Marvel Invertor Ac EER as 3.22 &
      Daikin’s ID-FTKP 50 RRV 16 EER as 3.52

      Though later is INR 4300 more than Onida. I guess on the long run it should be hardy and reliable.

      Kindly let me know is the Daikin model I chose was better energy efficient and worthy model ?!!

      Also to you other question on PCB failure – My friends Daikin failed due to voltage surge.

      Cheers
      Sathish Ram

    • https://www.bijlibachao.com Abhishek Jain

      Daikin’s FTKP model is a real good one. You can certainly go for it. You can use a surge protector, something like this: http://amzn.to/29VBv4A to protect your AC.

    • Sathish Ram

      Wow thanks mate for your suggestion on surge protector and AC model…. planning to buy it in weekend and ll update you :-)

    • Mk arora

      Sir, Could you please answer me that, is an Inverter AC 1.5 Ton required earthing which properly comes from the Depth of the ground (or ) it can run on the proper earthing provided by the electricity Department alongwith their connection. I am buying Daikin Inverter AC 1.5 Ton ATKP50RRV16 (R32 series)

    • https://www.bijlibachao.com Abhishek Jain

      There is no special Earthing requirement for inverter AC. However, having said that, the earthing should be good for you whole house. If you are worried about voltage surges that can damage a PCB of inverter AC then you can go for a surge protector, something like this: http://amzn.to/29IYJuW

    • Mk arora

      Sir Thanx very much, i am grateful for your advice

    • Mk arora

      Sir, could you explain me that what is surge protector, how its works and how useful it is for an inverter AC

    • https://www.bijlibachao.com Abhishek Jain

      Surges are sudden spike in voltage that bring in a lot of energy in the appliance. It can burn the wirings inside. Surge protector is a device that prevents excess voltage by absorbing extra energy (which can be done by earthing as well). A solid earthing absorbs extra energy in case there is a spike. You can read more about surge protector on this link: https://www.bijlibachao.com/appliances/surge-protector-buying-powerstrip-lightning-arrester-power-conditioner-joule-rating-clamping-voltage.html

    • Mk arora

      Sir, could you please let me know that which is the better AC between daikin 1.5 tn inverter ATKP50RRV16 and 1.5 ton daikin inverter FTK50RRV16. technician says that ATKP model is having AC motor in indoor unit & DC motor in outdoor unit, while DTKP model is having DC motor in both indoor and outdoor. Which motor is better and which model is better in terms of power saving, durability and maintenance cost.

    • https://www.bijlibachao.com Abhishek Jain

      FTKP and ATKP are different versions of the same model. Just like if you want to buy a Hyundai i20 you would get i20 Asta, Magna, Era, etc ….. but basic features of i20 remain the same. Similarly FTKP and ATKP are technically similar but with ATKP having some extra features (which are not really essential for cooling or energy efficiency). ATKP has some extra air filters and some features. I would have gone for FTKP (saves cost you see :) and cools equally well with similar electricity consumption).

    • Mk arora

      Sir,
      I bought Daikin Inverter AC 1.5 Ton ATKP50RRV16 (R32 series) for my 14 feet x 14 feet room last week after asking some suggestions from you. Yesterday I returned back this AC to daikin people as it was less in performance in their views as well. Their Engineers visited and checked it all. My room is on top floor (4th floor) whose roof and atleast two walls are exposed to direct sun light all the time and the room was not getting cool properly. Outer temperature was 36 degree and when we starts AC with 33 degree room temperature, it was converting it to 28 degree only in 4-5 hours. they said that my room is producing more heat so the inverter AC of 1.5 ton will not work in june month when temperature will go 45 degree. they suggest me three options :
      one is : to go for 1.8 to instead of 1.5 ton
      Second is : 5 star rating
      Third is : to go for ATKM50RRV16 which is Inverter + 5star
      kindly suggest what to do now.

      Room is completely isolated but 2 walls and roof is exposed to Direct Sunlight

    • https://www.bijlibachao.com Abhishek Jain

      Hello Mr Arora,

      My guess is that you did not go through the site completely before making a purchase. You straightaway came to the questions section and asked a question. And the question you asked was about various models of AC. You did not check the right size and bought the AC. ATKP50RRV16 is a great model. It is just that it is undersized for your room. Right sizing an AC is the first and most important aspect of purchasing any AC. You should have used the calculator on this page: https://www.bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html

      I would suggest that you use the calculator as it will suggest you the right size, right star rating (Inverter or BEE 5 star). I cannot make any recommendation without knowing your real requirement. The calculator will give you right suggestion.

      And I would say that I did not suggest you to go for the model. You just asked for difference between two models and asked me which one is better amongst the two. The model is good, it is just not right for your requirement. If you buy a shoe that is smaller than the size of your feet does not mean that the shoe is bad. Also while buying a shoe, it is important for you to know the right size. Similarly while buying an AC, it is important for you to calculate the right size.

    • Mk arora

      Sir. I am not saying at all that u recommended any brand or model to me. This was completely my decision, and I bought that after went through the curator as well as showed room to the daikin technician. Infact they recommend me. Actually my rooms picture is that it always contains 2 degree more than the outside temperature, room size is 14×14 feet. Could u please suggest how much tonnage we required either 1.8 ton or ATKP50RRV16 or ATKM5ORRV16.
      I went for ATKP50 BECAUSE DAIKIN PEOPLE and some online calculators suggest me 1.5 ton. Now after when it is not cooling perfectly, they suggested me ATKM50RRV WHICH IS premium inverter in 1.5. I was ready for that and ordered for ATKM but it was not in their stock so now they are saying that you should go for 1.8 ton. I believe that it is in their stock so they are saying to go for 1.8

    • https://www.bijlibachao.com Abhishek Jain

      Hello Mr Arora,

      I used the calculator on this page: https://www.bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html

      I assumed that you live in Delhi (you did not specify your city and did not use the calculator yourself as well) … and I needed city because some cities are hot needing more cooling and some are not too hot needing less cooling. By putting in these parameters:

      City: Delhi
      Size: 14x14x10 (I again assumed hight to be 10 ft).
      Sun on the ceiling
      Sun on the walls

      I get cooling need to be 2.5 ton. In such cases 1.5 ton would be too small. 1.8 ton would be better than 1.5 ton. And 2.2 ton inverter AC would be good on most days. With Inverter ACs, oversizing is not bad and thus even if you go for a 2.5 ton, that would work great.

      The situation will change if you live in Mumbai as heat is much less in Mumbai (or in any city close to the sea). In Mumbai even a 1.5 ton inverter AC would do better and 1.8 ton inverter AC would be the best.

  • Jason

    hi abhishek,
    if i dont use the voltage stabilizer, will the fridge get damaged. it says the fridge doesnt require a stabilizer. there isnt much voltage fluctuation in my area though there is lightning.

    • https://www.bijlibachao.com Abhishek Jain

      Most modern refrigerators have SMPS (Switch mode power supply) which internally regulates voltage. That is why you do not need a stabilizer. Only thing that can damage is sudden voltage increase or surge (which typically take it beyond operating voltage range). It can happen because of short circuits or lightning strike (or any other cause). But then that can damage any appliance (not just a fridge). Your MCBs should take care of it. If your wiring is good and you have good MCBs, they should take care. Else you can additionally put a surge protector from a good company like Belkin.

  • Siddhu

    1. Do we not have R32 or R410 compressor in window AC?
    2. For 120 sq. ft top floor bed room …. Is Hitachi RAW511KUD Kaze Plus Window AC (1 Ton, 5 Star Rating) good model? (This has R22 compressor which is outdated)

    3. Does window ac has temperature control feature?

    • Siddhu

      Hi Abhishek

      If I go for Hitachi RAW511KUD …. will there any maintenance problem in future .. because it is using outdated R22 gas?
      What is the life of window ac? … 15-20 years? (with 6 hours daily usage on average)
      Which one do you recommend from below? (keeping in mind EER and gas)
      1. Hitachi RAW511KUD
      2. Godrej GWC 12 TGZ 3 RWPT
      3. Lloyd LW12A3F9

    • https://www.bijlibachao.com Abhishek Jain

      Hi Siddhu,

      R22 is not going out of market for next 15-16 years. So you should not worry about it.

      Well life of almost all appliances is decreasing with passing time. About a dacade or two back, I would have agreed on 15 years. But for now I would say 8-10 years.

      Of the three models I would prefer Hitachi.

  • jagdish gusani

    i have a room of 12 feetx14feet. i want to purchase an ac which is energy efficient and having more required features. pl suggest an ac with good prise.
    can i purchase 1.2 ton ac

  • Rajan

    Dear Mr Abhishek, Thank you for providing us with your wonderful information portal. I would like to know whether it is alright to use Hitachi 5* AC (non inverter)1.2 tons for my room of dimensions 11x10x10 ft? According to the tonnage calculator, the room needs only i ton capacity. I understand that Hitachi does not have a 1 ton machine in the 5* category. Or should I go for another brand with 1 ton? (I checked a Diakin 1 ton 5 * but it is costlier by nearly 6K)
    Thanks, Rajan.

  • Sudipta Das

    Is R-600a good ??

    • https://www.bijlibachao.com Abhishek Jain

      R-600A is a Hydrocarbon, which is flammable, but highly energy efficient. Most brands are using R-600A in their refrigerators these days.

  • Vishal

    What is R32 refrigent ( used in Daikin ACs) ??? is it good compared to R-22 and R-410a??

    • https://www.bijlibachao.com Abhishek Jain

      R32 is more energy efficient than R22 and R410A. It has much less global warming potential than R22 and slightly better than R410A. But R32 is mildly flammable while R410A is not. Also R32 is not as flammable as R290.

  • samm

    ok ,I have a referigerator can i use any refrigerant like R410A,290,22A etc

    • https://www.bijlibachao.com Abhishek Jain

      I would suggest to check with the manufacturing company. They should have better knowledge.

  • Hemal Mehta

    Hi Abhishek,

    I am from Mumbai, I stay in a chawl so the roof top is direct to sunlight. But I have a ceiling made of black limestone in-between. I am going to use my Ac for 4-6 hrs a day, mostly Apr to Oct. Request you to please suggest some 1.5 ton units that have copper coil and which suits the above criteria. My budget is 40k.

    Advance thanks
    Hemal

  • Sajal

    I am using Sharp J tech inverter 1 ton split AC .. Voltage 220-240v, frequency 50HZ, phase-single, maximum input 2040W,cooling capacity 3600W,power input 1150W, Current 6.6A. if i maintain 25degree Celsius how much unit will be used in an hour?

    • https://www.bijlibachao.com Abhishek Jain

      Depends on the climatic condition and environmental factors. But it would be around 0.5 units in an hour. May be less than that.

    • Sajal

      Thanx

  • amol

    what is the difference between alloy condenser and copper condenser? which is more durable?

    • https://www.bijlibachao.com Abhishek Jain

      Alloy can be alluminium alloy or copper alloy. However, alloy condenser is typically used for copper alloy. And yes Alloy would be better.

  • Jayaseelan Sivasubramanian

    which has lower environmental impact? R22 or R410

    in some air conditioner websites EER is expressed in terms of W/W instead of BTU/W. What is the difference.? thanks in advance

  • Satyaprakash

    Hi sir,
    I m from Odisha
    I plan to buy a 1.5 ton AC
    I have no correct idea about ac.
    I confused with voltas,carrier,lg and bluestar
    please suggest me which model has R-410A and which will best 4 me.
    Is voltas is more better than other brand????

  • pitambar d giriya

    sir what do say about solar air hybrid ac is that sucsesfull and what about they say about saving .I want ac for shop west facing room size 12/14/10 with false ceiling. which capacity should i prefer for my shop for better performance.

    • https://www.bijlibachao.com Abhishek Jain

      Inverter Technology ACs are far more economical than solar hybrid ACs currently.

    • pitambar d giriya

      Sir I had seen two type of hybrid ac. One is with solar panel that is quite expensive.and another uses solar heat to compress the refrigerant I am talking about second one.marketed by SOLARAIR having vacume tubes in front of outdoor unit . So sir what do you suggest. About this technology. Pls reply soon.

    • https://www.bijlibachao.com Abhishek Jain

      From what I have seen in the market, Inverter ACs can give you far better energy efficiency and value for money than Solar Hybrid Air Conditioners. The compressor technology used by hybrid ACs is not very efficient.

  • elvin

    can you please name the content in the commonly used replacement of R134a by godrej refrigerators?

    • https://www.bijlibachao.com Abhishek Jain

      Most brands are using R-600a these days.

  • akshay

    is it true that R-32 cools more efficiently then R-410 ?

    • https://www.bijlibachao.com Abhishek Jain

      Not really. You need to check the EER/ISEER of the AC to check efficiency.

  • Dhruv Gupta

    R410A has a Global Warming Potential (GWP) of 2088 – this means that 1 molecule of R410A is equivalent to 2088 molecules of CO2 (a greenhouse gas that causes global warming). R22 has a GWP of 1810, R32 has a GWP of 675, R290 has a GWP of 3.3. Source: https://en.wikipedia.org/wiki/List_of_refrigerants. I recommend buying R290-based ACs as they are literally 2000 times more environmentally-friendly than R410A, and are very energy efficient. For example, Godrej has a few ACs that run on R290 and have a 7-star rating by the Bureau of Energy Efficiency.

  • sanjay kulkarni

    Hi,
    I stay in south Mumbai, I am planning to buy AC, it’s 2 floor chawl building and I stay at 2 nd floor, it’s very old building, area is around 300sq feet(100×3 rooms) and above that mezzanine floor which around 400sq feet(Single), we have open comman passage at front and back side, on front and back side one windows and door opening, usage will be 4-5 hr daily, kindly suggest AC

  • sanjay

    Hi,
    I stay in south Mumbai, I am planning to by AC, it’s 2 floor chawl building and I stay at 2 nd floor, it’s very old building, area is around 300sq feet and above that mezzanine floor which around 400sq feet, we have open command passage at front and back end, on front and back side one windows and door opening, kindly suggest

  • Gangadhar

    what happens if we use r290 instead of r22 in ac (compressor)

    • https://www.bijlibachao.com Abhishek Jain

      You should not use it as the whole system is designed keeping all the parameters in mind. The design of condenser/compressor/evaporator may vary if you change the gas.

  • savi

    this is for my brother who lives in Pondicherry ,first floor ,no second floor ,very hot,planning to buy AC for bed room 10 X 10,usuage will be 8-10 hrs a day,pls suggest AC model no brand ,budjet is 25k..Someone suggested godrej Hitachi,years of usage will be life long.Also room facing north,one window facing north with loft on east side..Kindly suggest

  • Abhishek Lohia

    Dear Bijli Bachao Team,

    I live in a duplex house with my brother. I stay on the 2nd Floor i.e. directly under the terrace and my brother on the first floor. The total open living area on each floor is approx. 500 sq ft. with an internal staircase between 1st & 2nd floor.

    Please suggest the best option of cooling the 2 floors whether – VRV, Floor Standing Type etc.

    Thanks.

    • https://www.bijlibachao.com Abhishek Jain

      Hi Abhishek,

      VRF will turn out expensive. It will be better if you go for a multi split inverter AC for your house. Bluestar, LG, Daikin, Sharp all have multi split inverter ACs. These ACs have one outdoor unit and 3-4 internal units.

    • Abhishek Lohia

      Dear Abhishek,

      Thank you for your reply.

      Please allow me to send the detailed specification of the area required to be cooled –

      Living area : 15ft X 35 ft i.e. 525 sq ft on top floor (connected by internal staircase to 1st floor)
      DIning & utility area : 32ft X 29ft on top floor
      Guest Room : 16ft X 12ft on top floor
      Bedroom: 16ft X 16ft on top floor

      Living area : 15ft X 35 ft i.e. 525 sq ft on 1st floor (connected by internal staircase to 2nd floor)
      DIning area : 14ft X 23ft on 1st floor
      Informal sitting area: 14ft X 23ft on 1st floor
      Grandma’s Room : 12ft X 17ft on 1st floor

      Is it possible to install a Multi-Split Daikin AC in this manner for 1st & 2nd floor seperately.

      Please suggest the best possible way out.

      Thanks once again.

      Abhishek Lohia.

    • https://www.bijlibachao.com Abhishek Jain

      Hi Abhishek,

      Typically a multi split AC has one outdoor unit and 3-5 indoor units connected to it. Looking at number of rooms in your house, you would need two such systems, one for each floor. But the rooms are huge and I am not sure if they would have big enough tonnage to handle all of them together or not. Would suggest you to call up Daikin or Sharp to check with them. They should be able to send engineers to your house to check on the sizing requirements.

      Regards,
      Abhishek

  • Abhishek Fatehpuriya

    thank you for your confirmaion

  • Abhishek Fatehpuriya

    i am planning to buy some AUG36AB – 3.0 Ton cassette ac for my showroom and it says it uses R22 is gas ok?

    • https://www.bijlibachao.com Abhishek Jain

      R-22 gas is ok, but it will be better if you can go for a R-410A or R32 model.

  • rohit mehta

    what should be the pressure of r410a gas in carrier estrella 4 star split ac.?

    • Bijli Bachao Team

      Should be around 120 psi.

  • Venu Inamdar

    Hello BB team,
    You are doing a great job. Thanks. I understand that R32 is better for environment. But, I came to know that it is flammable. Is this true? I am planning to buy 1.5 ton invertor AC of Daikin make having R32 refrigerant. Is it safe to go for this? Please suggest.

    • Bijli Bachao Team

      It is mildly flammable, not as high as R290. It is still quite safe.

    • Venu1010

      Thanks a lot..

  • Archit

    Hey BB Team,
    Is there any refrigerant R-32? I saw it on one of the Daikin site. And if it is there.. then is this refrigerant more eco friendly and efficient then R-410A?
    Also want to ask that, What type of refrigerant SAMSUNG AR18JV5DAWKNNA use?

    Thank you

    • Bijli Bachao Team

      Hi Archit,

      R-32 is a refrigerant used by Daikin. And it is true that it is more eco friendly and efficient than R-410A, but better refrigerant is only one part of efficiency. You have to look at EER of the model to make sure it is energy efficient. Samsung uses R-410A. In fact most others use R-410A for efficient models or R-22.

  • Mayank

    I stay in Agra, I am planning to buy 6 ACs for my New Flat- all of them Split unit, 1.5 Tons capacity all as calculated by the area of the each room. I am slightly confused and would like to have your help on the following:
    1. How is Mitsubishi Heavy Electric AC? They claim there Hybrid Model to be most energy efficient AC’s and work till the temp. of 52 degree, are these AC really best one in energy efficiency and cooling?
    2. Mitsubishi Heavy Electric AC’s used R22 gas which is said to be less energy efficient and is already phased out, can there be problem in future in re-filling in case of any repair regarding its availability?
    3. There is a brand in AC’s called GREE, it is said to be one biggest AC manufacturers in the world? They also claim there AC’s to best in energy efficiency, Cooling till temperatures of 60 degree, uses gas as R410A. What they claim is correct? It is worth buying these AC’s compared to Mitsubishi Heavy Electric AC?

  • Sanjay

    We have bought a 5star energy efficiency rating Hitachi split AC, Zunoh 200F, 1.5 ton. Model number is RAS-518-AVD. We would like to know whether this AC uses R-410A? If not, then which coolant is used? Is it true that we need to use stronger (and costlier) copper tubing for connecting the outdoor unit if 410A is used.

    • Bijli Bachao Team

      Hi Sanjay,
      Hitachi have not specified in their website which refrigerant they are using, But Hitachi split AC, Zunoh 200F, 1.5 ton has an EER of 3.8 which is quite high and only R-410A refrigerants have such high EERs. We recommend you to use the copper tubing which has come with the pipe, Hitachi technicians would know which kind of tubing is to be used.

  • CHAMKOURI

    DEAR SIR
    IF SOME BODY WANT TO MAKE A GOOD GAS GENERATION PLANT R-410A, R-22, R-290, R-134A Air Conditioners and Refrigerators , WHAT TYPE OF GAS CAN BE USED .( ETHANE , METHANE , PROPANE OR OTHER GASES .

    • Bijli Bachao Team

      Hello CHAMKOURI,

      We are not aware of gas generation process. So it would be difficult for us to help you.

  • Ankit Jain

    I’m looking for an ac for my shop having area of 300sqft (approx).So, could you suggest any 5 star rating ac with inverter as well as anti corrosion coating in it’s colis?Also tell me which is more flammable R32 or R410A?

    • Bijli Bachao Team

      Hi Ankit,
      Which city do you live in? And is your shop on the top floor with direct sunlight falling on the ceiling, or is it on a lower floor? And what will be your usage of AC in hrs/year? R32 is slightly flammable, R410A is not flammable.

  • Mohit

    My Samsung refrigerator use R600a gas. Can anyone tell me the power consumption of Samsung RT33FARZASP ? Please tell me in watts.

    • Bijli Bachao Team

      Hi Mohit,

      The exact watts are not mentioned even on the Samsung model’s manual, so it is very difficult to tell the same. However mostly refrigerators do not exceed 350-400 watts at peak.

  • sanjay

    hi ,
    1)my hall size is 16X11 , dining is 10X10 and with open kitchen 12X8 , South facing , no direct sunlight, at 2nd floor leaving at Pune. what size of AC i should consider?
    2)Which is safer between R32 and R410A? which one should be preferable for home application?

    • Bijli Bachao Team

      Hi Sanjay,
      Is your room at top floor, or are there more floors above your room? For which room do you need AC for hall (16*11) only or do you need AC for both dining room and open kitchen also. What is your usage of AC in hrs/year? And what is your budget for AC?

    • sanjay

      hello
      there are more rooms above my room. Hall ,dining & kitchen are does not have in between boundary wall. I want primarily Hall to be remain cool. AC is usage in mainly in Apr-Oct. Budget would be below 50k.

    • Bijli Bachao Team

      Hi Sanjay,
      Just your hall requires a cooling of 1.5 tons. So we recommend you to go for a BEE 5star 1.5 ton AC. You can keep it close to the region (hall) where you require maximum cooling. It will be able to provide local cooling in the hall area.

      Both R32 and R410A are safe, and any of it can be used for home purpose. Daikin uses R32 refrigerant and most of the other AC uses R410A.

      You can also look at these BEE 5star 1.5 ton AC:

      brand model eer_ratio price
      GODREJ GSC 18 FG 8 MOG 3.9 42999
      HITACHI RAU518EUDA 3.8 44450
      HITACHI RAU518HUD 3.8 41500
      HITACHI RAU518IUD 3.75 47777
      GODREJ GSC 18 FG 6 SOG 3.71 38888
      GODREJ GSC 18 FG 6 WNG 3.7 36833
      HITACHI RAU518IVD 3.7 47700
      CARRIER SUPERIA (1.5T) 3.7 43333
      WHIRLPOOL 3D Cool Climate Control(1.5 ton) 3.64 44600
      LG LSA5VP5D 3.6 35977
      LG LSA5MP5D 3.6 36477
      DAIKIN FTF50PRV16+RF50PRV16 3.6 38733
      WHIRLPOOL 3D COOL XTREME PLT V (1.5 T) 3.6 44500
      MITSUBISHI ELECTRIC MS-GK18VA 3.59 40261
      PANASONIC CS-XC18QKY/CU-XC18QKY 3.58 50916
      SAMSUNG AR18HC5UXNB 3.58 32000
      SAMSUNG AR18HC5TXNC 3.58 32000
  • Navneet

    Hi, for a ground-floor room of 10×12 in Jodhpur (Raj.), what should be the specifications of AC in terms of tonnes and the brand to be bought.

    • Bijli Bachao Team

      Hi Navneet,
      Assuming there are more floors above your room, your room requires a cooling of 1 tons. There is no such thing as a good brand, A particular user can have a good experience with a particular brand while another user can have a bad experience with the same brand.
      So you can go for 1 ton AC for your room. The rating of AC which you should go for will depend on your usage of AC.
      What is your usage of AC in hrs/yr? We will accordingly recommend the ACs suited for your room.

    • Navneet

      There is no floor above the room.The daily usage is around 6-8 hrs. BTW, if you can tell which one would you prefer between Daikin and Carrier ?

    • Bijli Bachao Team

      Daikin

  • Rishabh

    Please tell us about R32 that is used by Daikin and Fujitsu in their latest models.

    • Bijli Bachao Team

      R32 is greener and more energy efficient as compared to R410A and R22, however it is mildly flammable as it is hydrocarbon. However it is much less flammable as compared to R290.

  • Ashish

    Could you please shed light on Daikens R32 Refrigerant gas and compare to others available ….including the phasing out R22,

    • Bijli Bachao Team

      R32 is greener and more energy efficient as compared to R410A and R22, however it is mildly flammable as it is hydrocarbon. However it is much less flammable as compared to R290.

  • sunil

    Hi this is Sunil
    What is difference between 3 star and 5 star

    • Bijli Bachao Team

      BEE 3 star rated ACs have EER of 3.1 to 3.3 and BEE 5 star rated have EER 3.5 and above (some go up to EER 4). In terms of percentage saving if we compare EER 3.1 and 3.5 then the % saving is ((3.5-3.1)/3.1)x100 = 13%. If you go for AC with EER 3.3 then the same becomes ((3.5-3.3)/3.3)x100 = 6%. However if you compare 4 with 3.1 then the savings i ((4-3.1)/3.1)x100=30%.

      So it depends on the EER of the AC. Star rating is just a range of EERs.

  • suleman suleman shaikh

    I want to know which oil is used in R600 inverter compressor

    • Bijli Bachao Team

      Do you want to know about oil or refrigerant?

  • Vivek

    Hello Bijlibachao Team,

    Based on the recommendations, I bought Hitachi Summer QC 1.5 ton Window AC. Thanks to remote, we switch off the AC when it gets cold i.e voltage stabilizer is ON and AC is in OFF mode. I was curious to know about the electricity consumption of voltage stabilizer when it’s ON but AC is in OFF mode?

    Thanks,
    Vivek

    • Bijli Bachao Team

      Hi Vivek,

      If you do not switch off the stabilizer, it will continue consuming 10-15 watts of electricity even when the AC is in OFF mode. So it is better to switch off the stabilizer as well.

  • Vivek

    Hi, Why we dont have inverter technology in Window AC’s?

    • Bijli Bachao Team

      Hi Vivek,
      There is no limitation in technology to make inverter tech ACs in window AC, but manufacturers are not making inverter tech ACs in window ACs.

  • Chetan

    Hi Sir. I live in Noida near delhi on top floor i.e second floor of my house room is facing south west and its size is about 210 sq ft. I have an option of going with a window or split ac. My running would be about 2 hours in day and 8 hours at night. Please suggest me most practical from Hitachi Summer or Ogeneral 1.5 ton ac or thinking of a split daikin 1.5 ton 3 star ac. Which would cool better and save more money?? I know hitachi is 5 star but ppl say general is made as per other specification and not indian BEE. Will daikin split 3 star also consume as much electricity as the hitachi 5 star. Personally you would recommend split or window for efficiency and cooling??

    • Bijli Bachao Team

      Hi Chetan,
      According to our calculation your room requires 2 tons of cooling during night. And 2.3 tons of cooling during peak summer daytime.
      So we recommend you to go for a 2 ton AC.
      We recommend you to go for split ACs as there are very less efficient models in split AC. Hitahci 5 star will consume less electricity compared to a 3star AC.
      For how many months are you going to use the AC? ( what is yourusage of AC in hrs/yr?) And what is your budget? Accordingly we will recommend which 2 ton star rated AC is best suited for your requirement.

    • Chetan Uppal

      Thanks for your prompt reply. AC is going to be used for about 7 months @ about 8 hours a day so about 1600 hours in a year. I usually keep the temp at 21 to 24 never below that. Budget is about 35-40K. Instead of 2 ton is it more advisable to go for 1.5 ton general window ac which consumes more electricity but is said to be comparable to 2 ton of LG samsung videocon??

    • Bijli Bachao Team

      Hi Chetan,
      Your usage is very high. And window ACs are less efficient compared to split AC. A1.5 ton window AC cannot provide 2 tons of cooling. So based on your usage and budget we recommend you to go for at least a BEE 5star 1.5 ton AC and keep it close to the area where you require maximum cooling. It will work relatively well during night time. Though it may fall a bit short during daytime but it will be able to provide local cooling for your room.

      You can look at these BEE 5star 1.5 ton ACs around 40k:

      brand model eer_ratio price
      HITACHI RAU518HUDD 3.64 38600
      DAIKIN FTF50PRV16+RF50PRV16 3.6 38733
      LLOYD LS19A5SN 3.55 32877
      PANASONIC CS-KC18PKY-1/CU-KC18PKY-1 3.53 32800
      LLOYD LS19A5LN 3.52 32212
      VOLTAS 1.5T 185 CY 3.51 32450
      VOLTAS 1.5T 185 EYS N 3.51 34888

  • Shashank Gupta

    I want to purchase a A.C of 1.5 T for which i’m confused which to buy.I live in South Delhi.I already have a Godrej Split A.C which is a 3.1 EER and cost me 28K in 2012 satisfied with it till the end of this April month got astonished by there complained handling system as due to a same problem i had to call them 3 times at my home within a period of just 15 days.
    So,That’s why i’m ruling out Godrej also Samsung brand I don’t trust,kindly suggest me a good A.C

    The brand i liked on the Net are
    L.G – after sales for there other product is good
    Daikin – after sales service system unknown and who handles there warranty is also unknown to me.
    Carrier – after sales service system unknown to me.
    Hitachi – think so will not fit in budget.
    Voltas – after sales service system unknown to me but generally TATA is not good in after sales services.
    Any good brand I left out is also welcomed.

    But my Budget is Max 35K and the should be of split type,star could be 3-5 and I want good after sale service too after researching on net i found that in this amount i could get cooling watt of 5000-5200 watt and electric consumption of 1500-1700 watt.

    Usage of the The will be moderate type and will be fitted in my drawing room also my house is on ground floor.

    Also i’m using L.G product form past 10 years and is satisfied by there service and complain handling system.But cannot say anything on there A.C product. Also main thing is that product must be good, service is just a part of it,kind of a concern to me though and a deciding factor too me also.

    Daikin uses R32 does this makes it any superior to others like Carrier or L.G. can consider this brand if the warranty is provided by Daikin and it’s after sales service is good and product falls in my budget.

    Suggestion of Brand with Model No. is welcomed.

    Thanks in advance.

    • Bijli Bachao Team

      Hi Shashank,

      You can look at these BEE5/3 star 1.5 ton ACs under 35k:

      brand model eer_ratio star_rating price
      LG LSA5NP5A 3.6 5 34300
      VOLTAS 1.5T 185 CY 3.51 5 32450
      VOLTAS 1.5T 185 CYa 3.51 5 32500
      VOLTAS 1.5T 185 EYS N 3.51 5 34888
      VOLTAS 1.5T 185 MY 3.51 5 26999
      VOLTAS 1.5T 185 EY(R) 3.51 5 34777
      VOLTAS 1.5T 185 EY(S) 3.51 5 34777
      CARRIER NOVELLO PLUS (1.5T) 3.22 3 37900
      HITACHI RAU318HUD 3.29 3 35433
      HITACHI RAU318HVD 3.29 3 36700
      HITACHI RAU318EVD 3.29 3 37444
      CARRIER DURAEDGE PLUS K+ (1.5T) 3.27 3 35900
      DAIKIN FTC50PRV16 3.25 3 31433
      HITACHI RAU318HUDG 3.21 3 32715
      VOLTAS 1.5T 183 DY 3.21 3 29333
      VOLTAS 1.5T 183 MYi 3.21 3 29833
      HITACHI RAU318HUDD 3.2 3 33800
      HITACHI RAU318HUDZ 3.2 3 33975
      HITACHI RAU318KUDB 3.2 3 31900

      After sale service varies from city to city. So you have to ask your salesman to know after sale service in your area. R410A is better compared to R32.

  • Abhishek Gupta

    Hello,

    I stay in Delhi on 3rd floor (top floor). I want an air conditioner for my drawing room which is 160 sq feet and dont have any windows or balcony but has a open kitchen attached. The drawing doesn’t get any sunlight throughout the day from any side as it is in the centre of the house. Our usage will be about 8-10 hrs per day and comfortable temp will be at 23-25 degree celcius as it would keep the whole house in a cool. I need an air conditioner which saves my electricity bill.

    Which is a better option 1.5 ton inverter ac or 5 star ac ? i also wanted to know that which is a better gas R32 or R410 in terms or cooling and maintainence ?

    Kindly suggest.

    • Bijli Bachao Team

      Hi Abhishek,
      According to our calculation your room requires 1.7 tons of cooling. So for your usage a 1.5 ton inverter is a correct choice. We recommend you to cover the open kitchen with a curtain. So that tonnage of cooling required for your room is reduced. R410 is better compared to R32 in terms or cooling and maintenance.
      Sharp inverter AC uses R410. Sharp is a good brand. And we have got good user feedback about Sharp ACs. Also it is a value for money product so we recommend you to go with it.

  • Vandana

    Hello,

    I have a hall of 160 sqft in Mumbai. The room is on 6th floor (1 fl below top fl) and has north facing window of about 8*8 ft. The flat doesn’t get any sunlight throughout the day from any side. May be just a little reflected light from nearby buildings.
    Our usage will be about 800-1000 hrs per year and comfortable temp will be at 23-25 degree celcius.
    There is difference of about 5 to 10K Rs in price of a 5 star ac and an inverter ac of same tonnage in most brands. So the energy savings as against initial cost needs to be weighed in. That’s how a salesman suggested us the benefit of a 3-5 star ac.

    Will a 1 ton inverter ac better than 5 star 1.5 ton ac? I read below in some replies that inverter ac can expand its tonnage a little bit based on requirements.
    What will be better option for us?

    Regards,
    Vandana.

    • Bijli Bachao Team

      Hi Vandana,
      According to our calculation your room requires 1.1 tons of cooling. Based on your usage we recommend you to go for a 1/1.1 ton inverter AC. A typical BEE 3star 1 ton AC consumes about 0.9 units/hr, A 5star 1 ton Ac consumes about 0.8 units/hr and a 1 ton inverter AC consumes about 0.6 units/hr. So for your usage of about 1000Hrs/yr A 3star AC would consume about 900units/yr, 5star about 800units/yr and an inverter AC about 600units/yr. Tariff in Mumbai is very high (About Rs10) so an inverter AC would save about Rs2000 (10*200)/yr compared to a BEE 5star AC. So after a period of 3-4 years you will be making savings on electricity with inverter AC compared to a BEE 5star AC.
      Yes inverter AC has a variable tonnage A 1/1.1 ton inverter can work in the range of (0.2-1.2/1.3) tons. So At night time when everyone is sleeping the cooling required is less an inverter AC is able to adjust its tonnage and would consume very less electricity. Whereas a fixed speed AC would work only at fixed tonnage.

      You can look at these 1/1.1 ton inverter ACs:

      brand model eer_ratio tonnage price
      HITACHI RAU013EUEA 4 1 41980
      HITACHI RAU013IUEA 4 1 51111
      HITACHI RAU012HVEA 4 1 48690
      MITSUBISHI HEAVY INDUSTRIES SRK13YL-S 3.88 1 NA
      CARRIER Octra Inverter (1.0T) 3.83 1 44800
      SHARP AH-XP13PHT 3.83 1.1 NA
      SHARP AH-XP13PMT 3.83 1.1 37896
      SHARP AH-X13PET 3.83 1.1 32346
      SHARP AH-XP13LV 3.83 1.1 31700
      HITACHI RAU012HUEA 3.8 1 40900
      DAIKIN FTKM35PRV16 3.63 1 43450
      HITACHI RAU012KVEA 3.63 1 43190
      DAIKIN FTKP35PRV16 3.46 1 37690

    • Vandana

      Hello,

      We just got the 1 ton daikin ftkm inverter ac today. But looks like the tonnage is less. At 8pm it took almost 1 hr to go from 32C to 27C. Though the humidity decreased quite fast and it was comfortable cool when we were in area covered by air flow.
      I’m worried if it will be able to take load in the afternoon hot weather! :-o

      Regards,
      Vandana.

    • Bijli Bachao Team

      Hi Vandana,

      Can you please make sure that the AC fan speed is at the highest level? Air circulation will be quite important to make sure that the whole room is cooled. It will certainly take care of afternoon as well. Just try it out and let us know.

    • Vandana

      We are yet to explore all the features due to other works going on at home. But at 12pm it had cooled comfortable enough but leaves scope for pokey neighbor to ask “oh is the ac running?!!” :-o :-)

    • Vandana

      Thank you Bijli Bachao Team for timely valuable input.

      Regards,
      Vandana

  • priyanka

    Hi
    I want an inverter ac of 2 ton. I live in jaipur. Room area is 16 x14 x10. 2 ft . A window 4.4×6.4 facing south. Only south face is open . It’s ground floor without any story over it.
    I am confused in brand… o general , Hitachi, daikin, voltas.. I want best cooling and energy saving both…

    • Bijli Bachao Team

      Hi Priyanka,
      According to our calculation your room requires 2.1 tons of cooling during night time. It requires 2.7 tons of cooling during peak summer daytime. So if your cooling is mostly at night we recommend you to go for a 2 ton inverter AC if your usage is more during daytime we recommend you to go for a 2.2 ton inverter AC.

      You can look at these 2/2.2 ton inverter ACs:

      brand model eer_ratio tonnage price
      HITACHI RAU023EUEA 3.56 2 58950
      HITACHI RAU024CVEA 3.55 2 67790
      HITACHI RAU024IVEA 3.55 2 64790
      HITACHI RAU024AVEA 3.55 2 62790
      HITACHI RAU023HVEA 3.5 2 61790
      DAIKIN FTKM71PRV16 3.2 2.2 75500
      VOLTAS 2.0T 24V CY 3.17 2 54633
      GENERAL ASGA24JCC 2.9 2 62190
      DAIKIN FTKD71FVM 2.78 2.2 55090

  • sitanshu

    I am planning to Buy LG GL-225BPZL 215 L Single Door Refrigerator..can you pls suggest is it value for money, does it come with normal compressor or smart compressor and is it power/energy efficient?

    • Bijli Bachao Team

      Hi Sitanshu,

      We are not able to find specs for LG GL-225BPZL online (even on LG’s website). It also does not appear on BEE’s list. So we cannot comment much on it. SMART inverter compressors are not available in single door models.

  • pratik

    I want to buy energy efficient 250 lit refrigerator so please suggest it.

    • Bijli Bachao Team

      Hi Pratik,

      You can look at these most efficient 250ltr regrigerator

      Brand Model Number Gross Volume(Litres) Electricity consumption (unit per year) Star Rating Price
      LG GL-D292RSJZ 258 190 5 NA
      LG GL-D292RPJL 258 238 4 27400
      LG GL-E292RPTL 258 238 4 30249
      LG GL-M292RATL 258 238 4 24833
      LG GL-M292RLTL 258 238 4 23488
      LG GL-P292RPJL 258 238 4 27000
      LG GL-B292RMTL 258 238 4 20466
      LG GL-B282RACL 255 240 4 24733
      LG GL-B282RLCL 255 240 4 NA
      LG GL-B282SLCL 255 240 4 23333
      LG GL-C282RPCL 255 240 4 26733
      SAMSUNG RT27HDRZESA/TL 253 244 4 24433
      SAMSUNG RT27HARZERY/TL 253 244 4 NA
      SAMSUNG RT27JARMESE/TL 253 244 4 22800
      SAMSUNG RT27JARYESA/TL 253 244 4 24400
      SAMSUNG RT27JARZERY/TL 253 244 4 27500
      SAMSUNG RT27JARZEPX/TL 253 244 4 27500
      SAMSUNG RT27JAMSESZ/TL 253 244 4 29400
      SAMSUNG RT27JAMSERZ/TL 253 244 4 29400
      SAMSUNG RT27JAMSEPZ/TL 253 244 4 29400
      SAMSUNG RT27JARZESP/TL 253 244 4 NA
      HITACHI R-H270PND4K 253 257 4 NA

  • Vivek Gupta

    Hello Team,

    First of all thank you for the wonderful efforts to guide general public in India. I need to buy a window AC 1.5 ton (5 star) for my rented apartment at Vaishali, Ghaziabad. I am confused between Hitachi and Carrier brand. Whose after sales services are best? Cost is almost same for both Carrier Estella Premium and Hitachi Summer QC. Is there any benefit of buying Hitachi Summer TM over Hitachi Summer QC if Hitachi has better service than Carrier?

    Many thanks in advance for your expert guidance.

    Regards,
    Vivek

    • Bijli Bachao Team

      Hi Vivek,
      Among the models you have listed Hitachi Summer QC has the best EER. And there is not much difference between the features of Hitachi Summer TM and Hitachi Summer QC. The service of Hitachi is generally good but you have to check with your salesman for aftersale service in your area.

    • Vivek Gupta

      Hello Bijli Bachao Team,

      Thank you for the prompt response. I have another confusion regarding the capacity of the window AC. I am living in a rented apartment and master’s bed room size should 120-130 sq feet (Total Area is 1130 sq feet). This room doesn’t get direct sun light and relatively cooler than other bed room and the drawing room. Based on the calculations shown on your excellent website, 1 ton should suffice for the master bedroom.

      In future, I might change the apartment and rooms might not have same specifications. Do you think it’s wise to invest in 1.5 ton AC as it should suffice all the requirements.

      Regards,
      Vivek

    • Bijli Bachao Team

      Hi Vivek,
      We do not recommend you to go for a 1.5 ton AC for your room if your room requires a cooling of 1 tons because
      1) An oversized AC will over cool the room.
      2) It would consume unnecessary electricity.
      3) It will not remove the humidity in the room properly which may lead to bad odour.

      So if you plan to change your room the suggestion we would give is to go for a 1.5 ton inverter AC. Since inverter AC has a variable tonnage it will be able to adjust itself to the requirement of the room. Inverter AC would be about 30-40% more energy efficient compared to a BEE 5star window AC.

  • AKPatnaik

    Hi,

    I am planning for an 1 ton inverter ac, but not able to decide whether go for O general or Daikin, would you suggest which one is best.

    • Bijli Bachao Team

      Hi Mr Patnaik,
      In terms of efficiency Daikin is better. Daikin is a good brand so you can go for it.

  • tejas

    Hello BB team,

    I want to know what must be rating of mcb and wire to be used for installing ac. If I buy 1 ton split ac and in future will i be able to upgrade it to 1.2-1.5-2 ton ac on the same electrical point?

    Should the switch be MCB or Trip switch?

    Will the rating of switch and wire differ for regular AC and Inverter AC.?

    I have single phase in my house, how many ACs i can install and use at a time and upto what tonnage?e

    It will be great if you can share the calculation steps for calculating the appropriate ratings, which i can use in future.

    thank you,

    • Bijli Bachao Team

      Hi Tejas,

      A 1 ton AC is rated at about 1000-1200 watts. Assuming 0.75 power factor it is about 1340 VA (1000/0.75). So it would have a steady state current of 1340/220 = 6 amp. A 1.5 ton AC has an average wattage of 1500 Watts or 2000 VA so it would take about 9 Amp in steady state. Starting current would be about 1.5 times the steady state current.

      While selecting MCB you should check that the total current that it can handle is more than sum of amperage of all the appliances that can run at any given time. The wire should also be able to handle the current. So a 1.5 ton AC should have a wiring that can handle about 15 Amp current.

      Then on top of that the MCB come in 3 types: Type B: which trips between 3 and 5 time full load current. Type C which trips between 5 and 10 times full load current and Type D which trips between 10 and 20 times full load current.

      Now if the total load in your system is more than 7.5 KVA it is better to go for 3 phase supply. Single phase can handle less than 7.5 KVA. As mentioned above, one 1.5 ton AC would be about 2 kVA (3 KVA at least at startup because it needs more current to start). But 7.5 KVA should be sum for all the appliances that you have and not just the ACs.

  • Sachindra reddy

    For howlong would r32gas would be available in India when compared with r410a,and how do I fill my r32ac with gas if it is no longer available,say like after 5yrs from now.

    • Bijli Bachao Team

      Hi Sachindra,

      R32 is a new energy efficient and green refrigerant. There is no plan to phase out R32 as it is more efficient than R410A. Did you want to ask about R22? If yes then R22 will be phased out in next 20 years.

  • Santosh

    My apartment is on a middle floor of an high rise. The apartment balconies face north east. Approx. Living room is 275 feet + passage of around 40 feet. Bedrooms are 120, 140 and 150 sq f. My guess is I need 2 x 1.5 T in living room and 1 T in each bedroom split AC. One of the bedroom AC will be used frequently and so would be the hall.

    Am I correct in identifying the tonnage?

    Should I go for invertor in most used bed room and hall AND 3 star in rest of the bedrooms?

    Which brand would you suggest for invertor – Mitsubishi electric or Panasonic or Hitachi?

    Which brand would you suggest for 3 star? Mitsubishi electric, Panasonic or Hitachi?

    • Bijli Bachao Team

      Hi Santosh,
      Which city do you live in? And in which bedroom the AC will be most used?

    • Santosh

      I live in Mumbai. The bedroom in which ac will be most used faces north east.

    • Bijli Bachao Team

      Hi Santosh,
      According to our calculation your hall would require a cooling of 2.2 tons. And a 1 ton AC would be sufficient for all your bedroom. So we recommend you to go for a 2 ton inverter AC for your hall. You can go for 1 ton inverter AC for the bedroom with most usage and a BEE 3star 1 ton AC for other bedrooms with less usage.

      For 2 ton inverter AC you can go either for Hitachi or Mitsubishi both are great brands.

      You can look at these 2 ton inverter ACs :

      brand model eer_ratio price

      MITSUBISHI ELECTRIC MSY-GE24VA 3.61  
      HITACHI RAU023EUEA 3.56 58950
      HITACHI RAU024CVEA 3.55 67790
      HITACHI RAU024IVEA 3.55 64790
      HITACHI RAU024AVEA 3.55 62790
      HITACHI RAU023HVEA 3.5 61790

      For BEE 3star 1 ton AC we recommend you to go for Hitachi ACs.
      You can look at these BEE 3star 1 ton ACs:

      brand model eer_ratio price
      HITACHI RAU412HTD 3.29 29100
      HITACHI RAU412KTDP 3.29 33640
      HITACHI RAU312HUD 3.29 31644
      HITACHI RAU412HTDD 3.28 28600
      HITACHI RAU312KUDB 3.28 29177
      CARRIER DURAEDGE PLUS K+ (1.0T) 3.27 33000
      DAIKIN FTC35PRV16+RC35PRV16 3.25 28390
      MITSUBISHI ELECTRIC MS-HK13VA 3.24 27200

      You can look at these 1/1.1 ton inverter AC :

      Brand Model EER Ratio (Cooling) Tonnage Price
      Hitachi RAU013EUEA 4 1 41980
      Hitachi RAU013IUEA 4 1 51111
      Hitachi RAU012HVEA 4 1 48690
      Mitsubishi Heavy Industries SRK13YL-S 3.88 1 NA
      Carrier Octra Inverter (1.0T) 3.83 1 44800
      Sharp AH-XP13PHT 3.83 1.1 NA
      Sharp AH-XP13PMT 3.83 1.1 37896
      Sharp AH-X13PET 3.83 1.1 32346
      SHARP AH-XP13LV 3.83 1.1 31700
      Hitachi RAU012HUEA 3.8 1 40900
      Daikin FTKM35PRV16 3.63 1 43450
      Hitachi RAU012KVEA 3.63 1 43190

    • Santosh

      Thank you very much…

  • tejas

    hy abhishek,

    your tips are valuable. help me a lot for buying superfan.

    i want to buy refrigerator now. i want to buy in between 350 to 450 lits. i am thinking to buy bottom freezer/ it is advisable to buy this??? can you suggest bee 4 or 5 star rated bottom freezer?? salesman say that bottom freezer not advisable they give problem after 2 to 3 years. is it right??? or they do not have this type model so to sells other they told this??? want to go either in panasonic or hitachi. hows their model?? i have idea about hitachi but not for panasonic. i am afrid of panasonicas its after sales service very bad as personaly very bad experiance since i bought my panasonic ac since 3 years..

    if not than can u suggest bee 4 -5 star top freezer refrigerator in Samsung or lg brand only this rang.

    thank you.

    tejas

    • Archana

      Hi Tejas,

      We’ve been using a Panasonic bottom mounted refrigerator (263 ltrs) for years now and have had no problems at all. In fact, not having to bend down to reach the vegetable tray is a huge plus! It has a 4 star rating, though something that puzzles me is that the energy consumption is 384 units/year which is much higher that that of the models mentioned here.

      The refrigerant used is R600a, which has not been mentioned in the article here. I googled it and what I could gather is that it is comparable to R290. I hope the Bijli Bachao Team will be able to help with this!

      Archana

    • Bijli Bachao Team

      Most Refrigerators these days have R600A. You said it right, it is comparable to R290. However there is no star rating for bottom mounted models so the 4 star rating that you see would have been something that Panasonic would have used to market it. Because BEE does not rate bottom mounted refrigerators.

    • Bijli Bachao Team

      Hello Dr Tejas,

      Typically dealers and distributors try to sell the products where they have more inventory or are getting good commissions. We have not heard any complaints about bottom freezer models till now. So we cannot comment if the salesman is right or not. However bottom freezer models are not rated by BEE on star rating. So there is very less idea that we have about their power consumption. If you want to go for safer options then going for LG or Samsung BEE 4 star rated top freezer refrigerator would be safe. You can look at these:

      Brand Model Number Gross Volume(Litres) Electricity consumption (unit per year) Star Rating Price
      LG GL-D402RSHM 360 257 4 38500
      LG GL-D402RPHM 360 256.92 4 42014
      LG GL-D402RLJM 360 256.85 4 37350
      LG GL-M472GLJM 420 282 4 43100
      LG GL-M472GSHM 420 282 4 47200
      LG GL-M472GPHM 420 282 4 48600
      LG GL-D402RPJM 360 257 4 42833
      LG GL-P402RPJM 360 264 4 41200
      LG GL-P402RSJM 360 264 4 41000
      SAMSUNG RT39HDAGESL 393 276 4 43500
      SAMSUNG RT39HDJTESP 393 276 4 37500
      SAMSUNG RT42HDAGESL 415 281 4 48333
      SAMSUNG RT42HAUDEGL 415 281 4 51933
      Whirlpool NEO IC375 ELITE 360 275 4 39333

      These brands are also giving 10 years warranty on their compressor.

  • akshay

    i m doing project on R32 . i have a samsung window conditioner operating on R22. i need to replace it with R32 for the project. is it possible to use R32 in window air conditioner ?? if not then why ??

    • Bijli Bachao Team

      You will have to look at system design for the same.

  • ripal

    Which refrigerator is power saver double door or single door.also today which refrigerator is good power saver in 200 Ltr capacitty

    • Abhishek Jain

      Hi,

      There are no double door models available in sub 200 lts capacity. However these are the most energy efficient sub 200 lts models:

      Brand Model Number Gross Volume(Litres) Electricity consumption (unit per year)
      VIDEOCON VZS207 190 170
      VIDEOCON VZL207 190 170
      ELECTROLUX EJL205T 190 186
      ELECTROLUX EBP205T 190 186
      ELECTROLUX EBL205T 190 186
      LG GL-201KAG5 190 197
      LG GL-201XFDE5 190 197
      LG GL-B205XSHZ 190 197
      LG GL-B205KSLN 190 197
      SAMSUNG RR19H1835LX/TL 192 203
      SAMSUNG RR19H1835PX/TL 192 203
      SAMSUNG RR19H1835RX/TL 192 203
      Whirlpool DC 205 5S 190 203
      GODREJ RD EdgePro 190 PDS 6.2 Wine Petals 190 204
      GODREJ RD EdgePro 190 PDS 6.2 Lush /Lush Pink 190 204
      GODREJ RD EdgePro 190 PD 6.2 190 204
      SAMSUNG RR19J2835RX/TL 192 204
      SAMSUNG RR19J2835LX/TL 192 204
      SAMSUNG RR19J2835PX/TL 192 204

  • pitamber

    what are bRANDS of AC usingR410. shall i go for R32 or R290 refrigerants

    • Abhishek Jain

      Hi Pitamber,
      Daikin uses R32 and Godrej uses R290 refrigerants. Most of the other brands having inverter/BEE5 star AC use R410 refrigerants.

  • Alok

    Hello,

    I’m from Bangalore and I would like to buy a 1.5 ton 3 star AC for my room which is about 200 sqft in size. I would like my AC to use R410a refrigerant (or whichever is non ozone depleting) and to have a copper compressor. My usage would be 8 hours per day for about 3-4 months per year. A dealer near my place suggested me to go for Mitsubishi 1.5 ton 3 star AC however I would like to know the options available for me with the above specifications.

    Thanks
    Alok

    • Abhishek Jain

      Hello Mr Alok,

      Not all brands mention the refrigerant in their specs so I do not have complete detail about it. However here are some more models that you can look at:

      Mitsubishi MS-H18VA
      Blue Star 3HW18HAF
      Daikin FTC50PRV16 (it has R32 which is better than R410A)

      These are good ACs.

  • bhanu

    Hi,
    Thanks for all your guidance. . . .
    Based on ur advise I went for Voltas 1.2ton ac
    My electrician suggested to have wiring parallel to house wiring to avoid high load on wiring. . . . a.c with 5-6 amp, do I req. separate wiring for my a.c?

    • Abhishek Jain

      Hi Bhanu,

      Great! Do let us know your feedback on the AC. You should not be needing parallel wiring for your AC. Not sure why your electrician suggested the same.

  • ashok

    home hall room size is 10 * 22 ft with asbestos roof on top with complete pop fall ceiling intrested in buying fully copper air conditioner 5 star rating ac which should be power efficient Durability low maintenance running will be approx 4 hours daily @ mumbai also confused about refrigrant between r32/r410 energy efficiency & maintenance availability with reasonable pricing

    Reply appreciated on priority for procurement

    • Abhishek Jain

      Hi Ashok,
      Can you tell us which floor do you live? Does your ceiling/walls get direct sunlight? And what is the usage of AC in hrs/yr? And what is your budget? (These information are necessary to calcuate the tonnage and the right model of AC required for your room)
      Carrier and Lloyd have 100 % copper. Although we feel that a blue fin condenser is also highly durable.

  • Vineet Harbhajanka

    Hi Abhishek, I want to install an AC in my 3rd room of 150 sq ft in Calcutta. There is no direct sunlight falling on the room. I want something that is energy efficient.
    I am keen on getting R-410a gas or R290 etc whichever has low carbon footprint and non ozone depleting.
    Can you suggest a model that I can buy ?

    • Abhishek Jain

      Hi Vineet,
      What will be your usage of AC in hrs/year? And what is your budget?

    • Vineet Harbhajanka

      Have you looked at
      Mitsubishi MS-GK13VA 5-STAR 1 ton ?

    • Abhishek Jain

      Hi Vineet,
      Your room requires a cooling of 1.3 tons. So a Mitsubishi MS-GK13VA 5-STAR 1 ton AC would be undersized for your room and it won’t cool your room completely. In comparison a 1.1 ton inverter AC can expand its tonnage to 1.3 tons (it is a variable tonnage AC which can vary its tonnage from 0.2-1.3 ton according to the need of the room and that is why it saves electricity) So we would recommend you to go for any of the inverter AC given in the list as it will be more energy efficient than a normal BEE 5star rated AC.
      For more information about inverter ACs you can look at this link : https://www.bijlibachao.com/air-conditioners/air-conditioners-with-inverter-technology-can-help-save-electricity-ac-india.html

    • Vineet Harbhajanka

      I would use it 8 hours a day during summers so roughly 1000 hours / year.
      I have found this Mitsubishi MS-GK13VA 5-STAR 1 ton so far.

    • Vineet Harbhajanka

      Budget is between 30-40k

    • Abhishek Jain

      Hi Vineet,
      According to our calculation your room requires 1.3 tons of cooling. Since your usage is high (about 1000hrs/yr) and tariff in Kolkata is also high (about Rs9) we would recommend you to go for a 1/1.1 ton inverter AC.

      You can look at these 1/1.1 ton inverter ACs that will fit in your budget.

      Brand Model EER Ratio (Cooling) Tonnage Price
      Sharp AH-X13PET 3.83 1.1 32346
      SHARP AH-XP13LV 3.83 1.1 31700
      Samsung AR12HV5NBWK 3.52 1 35800
      Carrier Kurve Inverter (1.0T) 3.45 1 35500
      Haier HSU-12CKCS(R2DB) 3.4 1 25370
      Daikin FTKE35GV1 3.35 1 32990

  • Jaya

    Now, I want to buy a 1.5 Ton Split AC. Pls, suggest me which refrigerant is latest (R32 or R410A).?

    • Abhishek Jain

      Both R32 and R410A are latest. Daikin uses R32 while all others use R410A. R32 is a hydrocarbon and thus is a bit flammable as compared to R410A.

    • Vineet Harbhajanka

      I would use it 8 hours a day during summers so roughly 1000 hours / year.
      I have found this Mitsubishi MS-GK13VA 5-STAR 1 ton so far.

  • Anwar usman

    My room size is 120 sf at 9th top floor West side of mangalore karnataka. I’m confused go for 1 ton or 1.5 ton inverter ac plz suggest me sir

    • Abhishek Jain

      Hi Anwar,
      According to our calculation your room requires 1.1 tons of cooling. So a 1 ton inverter AC would be sufficient for you.

  • Milin Shah

    Hi Abhishek,
    Really nice post. I live in ahmedabad at 2nd floor (not top floor). I am planning to buy new 5 start split air conditioner for my home and I am confused among following 3 models, can you please help:
    1. Hitachi zunoh 300f (R22)
    2. Daikin -FTF50PRV16 (R32)
    3. Mitsubishi Electric Mr Slim (R410)

    Hitachi zunoh has the highest EER which is 3.70 while other two have around 3.60. All above mentioned cost between 45 to 50k including installation. Can you please suggest which one to buy?

    Thanks,
    Milin Shah

    • Abhishek Jain

      Hi Milin,

      Without knowing the size of your room we cannot confirm whether 1.5 ton AC is the right size for your room. Otherwise Hitachi is a good brand. And among the models that you have given Hitachi zunoh 300f (R22) has the highest EER (3.70). So we would recommend you to go with Hitachi zunoh 300f (R22).

    • Milin Shah

      Thanks Abhishek.
      Room size is 12 x 12.
      The only concern with Hitachi 5 star ac is that they use R22 gas which is going to be banned in future.

    • Abhishek Jain

      Hi Milin,
      1.5 ton is the right size for your room. R22 will be phased out in the next 20 years. Manufacturers are reducing their models with R22. But that does not mean that it will not be available in case there are any leakages.

  • alexander schell

    how many liters is the samsung RT 32 refridgerator

    • Abhishek Jain

      It’s gross volume is 315 lts.

  • Santosh

    Hello Abhishek
    We are fitting 1.5 ton Daikin split Ac in our hall, kindly guide me what should be the position of compressor (outer unit) as compared to its split unit installed in Room. I mean wether compresser (outer unit) should be on lower / upper or parrallel to its split unit in comparrsiion & what r its effects on cooling Room.
    I stay on top floor , Ac engineer suggested me to install the outer unit on terrace, but one electrical engineer & friend of mine like you suggested to install the outer unit on lower side as compare to split unit. Plese guide me my friend.

    • Abhishek Jain

      Hi Santosh,

      The only thing that I would suggest is that avoid installing it at such a place where it will get direct sunlight on it. Sunlight on AC outdoor unit would reduce the efficiency of the air conditioner. Lower, upper or parallel will not make much difference.

  • IQBAL

    Hi Abhishek

    I am from Delhi, my flat is on fourth floor (top floor) and my room size is 10*12ft. we are 3 members. I am planning to opt
    Godrej 1.0 Ton Split AC – GSC 12 FG 6 BNG,
    Please suggest would it be adequate for my room requirements
    .
    Few more things I want to get clarification on, as this model uses R290 refrigerant.
    ***R290 is environmentally safe but highly flammable, would that be dangerous in Delhi’s summer.
    ***R290 is latest one so does it make any difference in refilling/maintenance charges.

    • Abhishek Jain

      Hi Iqbal,

      A 1 ton AC for 12×10 room top floor room in Delhi would be undersized. It will not provide good cooling in peak summer day time. As per my calculation you need 1.4 tons of cooling in peak summer day time so 1.5 ton AC would be better. As for R290, yes it is flammable, but it is highly energy efficient. And as long as manufacturers have put enough precaution to handle it, it should not be a big problem. In fact most energy efficient refrigerators available in market use R600a which is similar to R290. And there are not reports of any burning. However it may have some difference as far as refilling and maintenance charges are concerned as there are very few brands that are using it.

  • Neha

    Hi , I am from Bangalore . want to purchase double door refrigerator .
    Please suggest LG or Samsung will be better, as LG have smart inverter and Samsung have digital inverter.

    • Dinesh

      Better go for R32 based Daikin air conditioner

    • Abhishek Jain

      Hi Neha,

      It will depend on the model and features that you want. LG has more models that are highly energy efficient (BEE 4 star and 5 star rated) as compared to Samsung. So if energy efficiency is your priority then LG can provide you more options.

  • Arun Kumar

    Hi,
    I am planning to buy Inverter ac for rooms in Chennai.
    Please let me know which will be better among O General ASGG12JLCA and Daikin FTKP35PRV16.

    • Abhishek Jain

      Hi,

      Daikin FTKP35PRV16 has EER 3.42 whereas O General ASGG12JLCA has EER of 3.2. So Daikin FTKP35PRV16 looks more energy efficient.

  • Munish

    Hi, I have purchased LG MC2883SMP oven, I wanted to know regarding the power soket requirements for this. I am having power sokets of 5A on which i use my fridge. Can i put my oven also on 5A soket, I have heard it requires 16 A soket. I have purchased one plug which is of 13A range. Can i put this 13A plug in my 5A soket and use microwave on 13A plug.

    I also wanted to know in case i need to put 15A soket, does it needs wiring of of the soket also to be changed as it will withdraw more current.

    • Abhishek Jain

      Hello Munish,

      15 Amp needs thicker wires, so you certainly need to change the wiring. You need 15 Amp for a convection microwave.

  • Saravanan

    hi suggest me an inverter type split ac of high durability , both energy and cost efficient

    we (2 persons) live in coimbatore on first floor of room size 11*10*10(l*w*h) with one wall (during evening time) and roof exposed to sunlight.

    • Abhishek Jain

      Hi,

      You need 1 ton cooling for your room or 0.75 ton inverter AC. You can look at these models:

      Daikin FTKM25PRV16
      Sharp AH-XP10LV
      Mitsubishi MSY-GE10VA
      OGeneral ASGA09JGCA

  • pinal

    I want to buy a refrigerator i have confused which are best for me , pls suggest me to we are three family members we want to buy double door ao many options available in market so confusion are natural

    Regards
    Pinal shah

    • Abhishek Jain

      Hello,

      I would suggest that you look at any of these models:

      Brand Name Model Number Gross Volume(Litres) Electricity consumption (unit per year) Star Rating Market Price
      SAMSUNG RT27HDRZESA/TL 253 244 4 26800
      LG GL-D292RPJL 258 238 4 27400
      LG GL-E292RPTL 258 238 4 29990
      LG GL-M292RATL 258 238 4 28500
      LG GL-M292RLTL 258 238 4 23500
      LG GL-P292RPJL 258 238 4 27000

  • Bhaskar

    Dear Abhishek

    Thanks a lot for the informative post. It is important to build awareness about refrigerants in the current phase of market transformation, with R22 being phased out of the Indian market due to its ozone depleting nature. I would add R32 to the list of refrigerants you talked about in the post here, Daikin currently is the only manufacturer selling R32 ACs in the market, and Fujitsu OGeneral has also announced that they will introduce ACs with this refrigerant in India. R32, and R290 both offer superior energy efficiency compared to R-410a, and also have a lower global warming impact than both R22 and R410a.

    • Abhishek Jain

      Thanks for sharing your information and views Bhaskar.

  • ramu

    i would like to know the list of all past refrigernts and present refrigerent?with properties?and i would like to know the reason why they had repalced old refrigerent by new refrigerent?

    • Abhishek Jain

      Hi Ramu,

      Sorry we do not have this information.

  • Pari

    What is the gas pressure for an inverter aircond with 1hp.
    I am currently located in Malaysia.
    Does it use R410A refrigerant?
    The gas filling equipment has many range of pressure.
    Which psi to use. there is one on the outer ring which ranges from 0 – 250, then in the inner from 0-150.
    What is the actual gas pressure to fill?

    • Abhishek Jain

      Hi Pari,

      Inverter ACs use all kinds of refrigerants. There are some with R-22 as well. As regarding the gas pressure, I would suggest that you look at the AC manual or contact the manufacturer for the same.

    • Pari

      Hi Abhishek

      Thanks for your prompt reply.

      I have checked with the AC manual and it says R410A refrigerant.

      What is the normal psi for input gas for 1hp air cond.

      Is it 118 to 125 psi?

      Regards
      Pari

    • Abhishek Jain

      Hi Pari,

      Here is a good chart to refer to: http://www.advantageengineering.com/fyi/289/advantageFYI289.php

      Depending on the peak temperature in summers in your area, you can get the value to set to.

  • Arun M

    Hi Abhishek, I live in an apartment with 10 houses. Distribution power is less and at my home, i am receiving only 160v power. Oven technician checked with a clam meter. I have LG MC2883SMP oven, which require atleast 220v for the Microwave to operate. Can you please suggest me a good voltage stabilizer model. I require it only for the oven point. Thank you for all your help and suggestion – Arun, Bangalore.

    • Abhishek Jain

      Hello Mr Arun,

      I checked the website for the LG model (http://www.lg.com/in/microwave-ovens/lg-MC2883SMP). It gives the wattage of the model as 1950 W, but it does not give operating voltage range. The user manual just specifies to use exclusive 230 V socket with earth. Now a 1950 W appliance at 230 V would need 1950/230 = ~8.5 Amp current. So you need a voltage stabilizer that can handle up to 10 current. Now voltage stabilizers have a input and output voltage range. For e.g. if you look at the SVS model on this page http://www.sollatek.co.in/home_office.php?product=home_office it has input voltage range of 142V ? 295V and output of 182V ? 259V. So it is not necessary that at 160 V it will give exactly 230 V. And that is why it is important to understand the operating voltage range of the product. Can you check with LG about the same?

    • Arun M

      Thank you Abhishek.
      Here are the operating Voltage range of this product. Let me know if i need to ask LG anything in specific. I also want to tell you that although the Micro was not working, i was able to bake on convention – If that matters in anyway.

      INPUT – 230V. 50Hz
      MicroWave – 1350W
      GRILL – 1200W
      CONVENTION – 1950W MAX
      COMBINATION COOKING – 1950W MAX
      RF OUPUT – 900 W
      FREQUENZY – 2450MHZ

    • Abhishek Jain

      Hello Mr Arun,

      You need to ask them the input voltage range at which the microwave can function properly. Input voltage cannot remain constant at 230. Can it work between 195V and 250V?

    • Arun M

      Hi Abhishek,

      I am sorry for the delay. It is very difficult to get hold of someone who can give me an accurate info about input voltage range. Cust care transfers to service and vice versa. Somebody in the meantime told 5, i asked him if it was 5 amps, but he said its just written as 5. Finally i got hold of a service centre and spoke to an engineer. He says that it should be minimum 220v. So i am not really sure. I think i ll have to get a clam meter an check the voltage whenever MW works and let you know, or if you can suggest something…

    • Abhishek Jain

      I would suggest that you call an electrician to check the MW using a clamp meter. It is important to understand the input voltage at which it can work before you buy a voltage stabilizer.

    • Arun M

      160v. I think it depends from time to time..I have received 220v sometimes.

  • Ramkrishna

    Hi!

    I stay at Kolkata on 4th floor in a five stored apartment.I?m planning for split AC in room of 10x12x10(lxwxh). From your articles it seems that 1 ton AC is my requirement as direct sunlight is not there. Am I right? If so, which brand and model number should I opt for? Electricity savings and low maintenance are my priorities.
    Thanks.

    • Ramkrishna

      Hello Abhishek Babu
      Thanks for your reply. But in your list you have not mentioned carrier co. So if I purchase carrier company’s ac because as per my knowledge that this co. only used cooper coil where as other co. used silver coil. So pl. you suggest me which model is better for me for long term use and low power .consumption and also suggest me to another room which is the same as early but length is 12(12lx12wx10h) here can I used 1 ton capacity ac?

    • Abhishek Jain

      If the room is 12x12x10 then you need 1.2 tons of cooling or 1 ton inverter AC. Carrier certainly has 100% copper. Others have aluminium. The biggest benefit of copper over aluminium is that in case of corrosion, copper condenser can be fixed but aluminium needs to be replaced. However both aluminium and copper are prone to corrosion. To avoid corrosion for a long duration the models these days are treated with anti-corrosion coatings (blue fin condenser). Many top models of various brands have blue fin condensers. Inverter ACs are most efficient in terms of saving electricity.

      Here are some ACs for the 2nd room:

      1.2 ton AC:
      Hitachi RAU514IUD or RAU514EUDA
      Whirlpool 3D Cool Platinum V or Magicool Platinum V
      Voltas 155 CY

      1 ton inverter AC:
      Daikin FTKM35PRV16 or FTKP35PRV16 (1 ton)
      Hitachi ACE or iClean Inverter AC (1 ton)
      Sharp AH-XP13LV, AH-XP13PHT, AH-XP13PMT, AH-X13PET (1.1 ton)
      Samsung AR12HV5NBWK or AR12HV5DAWK (1 ton)
      Panasonic CS-S12PKYP Econavi (1 ton)

      If you are looking for Carrier models then you can look at Carrier Superia Plus Inverter AC models or Carrier Superia BEE 5 star rated models.

      We typically recommend people to go for BEE 3 star split AC if usage is less than 1000 hrs per year and price of electricity less than Rs 5 a unit. If usage is between 1000-1500 hrs per year, then we suggest going for BEE 5 star split and beyond that Inverter Tech split AC. This is for 3 years payback for the extra money you pay to buy the appliance. With each star rating increase, the energy saving potential increases by 7-8%. Inverter tech of same EER are 15-20% more efficient than BEE 5 star rated AC.

    • Abhishek Jain

      You need 1 ton fixed speed or 0.75 ton inverter AC, you can look at these:

      Godrej GSC 12 FG 6 WNG or GSC 12 FG 6 BNG
      Mitsubishi MS-GK10VA
      Whirlpool 3D Cool Climate Control
      Panasonic CS-XC12QKY

      Or you can also look at 0.75 ton inverter tech AC models:

      Daikin FTKM25PRV16
      Sharp AH-XP10LV
      Mitsubishi MSY-GE10VA
      OGeneral ASGA09JGCA

      Inverter ACs will save you a lot of electricity.

  • bharat patel

    my room size is 15*10*10 and i want to buy o general 1 ton INVERTER ac. there is on any wall exposed with sun light and room has no any floor. Is it comfortable for me ? i am living in North Gujarat.

    • Abhishek Jain

      1 ton inverter AC may turn out small for your room. 1.5 ton would be better.

  • Rushabh Shah

    Hi Abhishek Ji,

    I want to buy a 2 ton inverter ac for my office in Mumbai, My usage is approx 15hours daily.
    I get very High Electric Bill, SO I WANT A SPLIT AC WHICH IS POWER EFFICIENT.

    My office is near the main road so lots of dust get accumulate inside the coils, coz of which i have to service my ac every month and wash it every 4 month. Currently I am using a 2 Ton O General a/c which i had bought in 2007.

    Please suggest me a good Split A/c

    My a/c dealer has suggested me to buy “Mitsubishi 2 Ton Inverter MSY/MUY GE-24 Split Air Conditioner”.

    Please suggest me a good a/c

    Thank

    • Rushabh Shah

      Dear Abhishek Ji,

      Thanks For prompt reply :))))

      My office is 200 sq. feet, at at any given point 10-12 people are inside the office. So i want you to suggest me a split a/c which is mainly POWER EFFICIENT and DURABLE (Coz of dust problem).

      And also should i go for 2.5 ton a/c??? if yes which models???

      Thanks.

    • Abhishek Jain

      A 2 ton inverter AC should be good enough for your needs. You can either go for any of the models mentioned earlier, or if you feel that it will be small enough, then you can go for 2.2 ton inverter AC from Daikin FTKM71PRV16. But anything beyond that would be really mean spending extra money.

    • Abhishek Jain

      You can look at these 2 ton inverter ACs:

      Hitachi Ace Inverter 2 ton
      Mitsubishi Electric MSY-GE24VA
      LG BS-Q246C8R3 or BS-Q246C8A2
      Samsung AR24HV5NBWK

    • Rushabh Shah

      I need a split ac with “Good Built Quality & and Power Efficient”.

      Thank You

    • Abhishek Jain

      Mitsubishi Electric model that you mentioned is quite good.

  • Suraj Prakash

    What happens if compressor of a inverter AC is charged with R-22 gas instead of R-410. Does it spoil the whole AC. What are the parts which get damaged and whether it is possible to rectify the damages and how. In my case, probably this happened and cooling is now negligible. Even after complete flusing and recharging with R-410 A and after more than 2-3 hours of running, grill temp does not come down below 19-20 C. Further for a room size of 350 Sq Ft, what is ideal AC rating .i.e whether 2 Ton or more.

    • Abhishek Jain

      Well each AC is designed for usage with a certain gas. So it is not advised to change the gas. There are inverter tech ACs with R-22 so it is not necessary that all inverter techs use R-410 only. Would suggest you to contact the manufacturer if AC is not working. As for sizing, I can suggest it only after knowing your city. However 2 ton sounds less for 350 sq ft room.

  • Irshad

    http://pubcouncil.kuniv.edu.kw/jer/files/18Jun201302225615_Thermodyn.pdf

    the above link states that R-600&R-600A better than R-134A

    • Abhishek Jain

      Thanks for the information Irshad. It really helps.

  • Raj

    Hi Abhishek,

    I live in Chennai (but not near coastal area or lake area). I am planning/considering to buy Blue Star R410A model 5HW18ZAWF. But, I am confused between choosing R410 based refrigerant and R22 refrigerant. Though R410A is not ozone affecting, it still creates impact on Global Warming.

    I understand from articles that R410A has characteristics like high pressure and emits more heat and hence R410A should use different system/components like below:

    a) ZP Scroll compressors to avoid rupture of shells
    b) Thicker Pipes
    c) Better condenser with better heat exchange etc.etc

    But, BlueStar uses Rotary compressor and I am not sure whether they use different components like thicker pipe etc.

    Is it Ok to use Rotary compressor? Is BlueStar right choice?

    • Abhishek Jain

      Hi Raj,

      You can go for Blue Star. Do not worry too much about refrigerant at this stage. Just go for higher energy efficiency product.

  • Bhanu chand

    My question is, is there a need for voltage stablizer for digital inverter refrigirator? If so which one – regular( v-gaurd) or a digital/ electronic one

    • Abhishek Jain

      Which model have you bought? Some refrigerators have large operating voltage range not requiring a stabilizer.

  • neha

    Thank you . We almost bought 5 star voltas 1 ton split ac but due to confusion regarding tonnage came back. Windows ac is not a possibility as there are no windows only a tiny one . So a 1 ton 5 start rating voltas split ac would work fine. Right?

  • neha

    Delhi

  • neha

    HI Abhishek,
    Kindly suggest a split ac best suited as per my requirements. I live on the 2nd floor there is a third floor too. The room size is 12 X 10 sq ft. There is no direct sunlight and room doesn’t have any windows. Daily usage would be approx 4-5 hours. I zeroed in Voltas 1 ton ac but few people suggested that 1 ton would not cool the room properly. Also the fan would be placed approx 6 metres away from the main unit.
    Thank you. Try to reply as soon as possible :)

    • Abhishek Jain

      Hi Neha,

      A 12×10 room in Delhi which does not get any direct sunlight (even on the walls in the afternoon) would need 1.1 tons of cooling in peak summer day time. 1 ton AC should work in most cases. Heat is especially less at night and so it should would in nights thought the year. Your usage is less so I would not push you for higher star rating, but would recommend to buy at least BEE 3 star rated AC (it will be great if you can buy a BEE 5 star rated window AC from Voltas). But 1 ton should work.

    • Abhishek Jain

      Which city is this for?

  • padda

    Dear Abhishek

    After reading your different reviews, few days ago I brought 1 ton Daikin , ftkm35prv16, r32.inverter ac.

    My room is 145 sq ft, no direct sunlight, even outer unit never see sunlight.
    I live in hoshiarpur, punjab.

    I spend Rs 52000 on this 1 ton ac. I m not satisfied b cos it never cool my room below 30 degree, even at night.
    What can I do now?

    • Abhishek Jain

      Hi Padda,

      For the size you mentioned a 1 ton inverter AC should work. Do you get direct sunlight on the roof of the room? I mean are there any more rooms on top of this room?

    • Padda

      Thanks Abhishek G for your quick attention.
      Yes dear, Room got direct sunlight on roof.But roof is protected by mud and brick tiles.
      It should not affect the cooling after 10 pm.

      Today, external temperature was 42 deg nd my room is at 32 deg. (34 °C is the maximum temp of my room, without ac )

      Today I started the ac at 9pm. It took 90 minutes to cool from 33 to 30°C (I set the temp to 27)and after 2 hours it can’t cool from 30 to 29°C.
      My room has 2 doors,1 window (6×6 ft) all wooden. Except east all other sides have rooms.
      Waiting ur response.
      Thanks.

    • Abhishek Jain

      Hi,

      Was the installation done by a certified Daikin person? Because even if the AC is undersized (which looks likely), the AC is not small enough to not make any impact. How far is the temperature sensor from the air conditioner? Is there no cooling close to the AC? Because it should surely cool decent enough at night unless there is a problem with installation. I would suggest you couple of things:

      1) If possible get white reflective (oil) paint put on the roof top. Check this http://www.xlcoatings.com/ . Or you can put a XPS board (http://www.insuboard.com/insuboard.html) or Thermocol on the ceiling that can reduce the heat in your room. It should surely bring down the heat in your room by a few degrees.

      2) Also I hope that you keep the doors/windows closed when you use the AC. Do not let outdoor air a free pass in your room.

      3) If Ac is not installed by a Daikin certified technician, then request daikin support to check the same. Even if it is installed by Daikin, ask them to check the installation as I find it hard that the AC is not cooling the room to 27 degrees.

      Also do let me know how far is the thermometer from the AC (thermometer which is showing room temperature).

  • Tapas Kumar Sil

    My South facing bed room size is 140 sq. ft and the room height is 12 ft. on 1st floor of 4 storied building. Should I go for Daikin 1 ton Inverter split AC ?

    • Tapas Kr. Sil

      Kolkata is my city and no direct sun light during summer as it is south facing room.

    • Abhishek Jain

      Hi Tapas,

      You need 1.5 ton cooling for your room. 1 ton inverter AC will fall short. You need 1.25 or 1.3 ton inverter AC at least. There is one 1.25 ton model from Sharp and 1.3 ton inverter AC model from Mitsubishi. Or else you need to go for 1.5 ton inverter AC.

      Regards,
      Abhishek

    • Abhishek Jain

      Which city is this for? Do you get direct sunlight on any of the walls during the afternoon?

  • jayanta kundu

    city-kolkata
    room size-(1)110sq feet ,top floor(2)122.4sq feet.ground floor
    room position -north west
    usage-10-12 hrs a day
    my questions-1.the tonnage of a.c i required 2.the best a.c model for me

    • Abhishek Jain

      You need a 1.2 ton AC for room 1 and 1 ton AC for room 2. If you go inverter tech then you need 1 ton inverter tech for room 1 and 0.75 ton inverter tech for room 2. Your usage of AC is high so you should go for inverter tech AC. You can look at these:

      0.75 ton inverter AC:
      Daikin FTKM25PRV16
      Sharp AH-XP10LV
      Mitsubishi MSY-GE10VA
      OGeneral ASGA09JGCA

      1 ton inverter AC:
      Daikin FTKM35PRV16 or FTKP35PRV16 (1 ton)
      Hitachi ACE or iClean Inverter AC (1 ton)
      Sharp AH-XP13LV, AH-XP13PHT, AH-XP13PMT, AH-X13PET (1.1 ton)
      Samsung AR12HV5NBWK or AR12HV5DAWK (1 ton)
      Panasonic CS-S12PKYP Econavi (1 ton)

  • jayanta kundu

    my city is kolkata.both of my room,where i want to install a.c are north-west facing.(1)one is at the top,under roof(no false ceiling) & the area is 110 sq feet,height 9.1 feet (2) another is at ground,the area is 122.4sq feet &height 10 feet..kindly suggest me the proper tonnage i required and the best a.c

  • satish

    what is test of solar panel watts how it can be checked

  • amir

    R-290 is more efficient than R-22 and R-600a for R-134a

  • Tapas Kumar Sil

    I need one ton split AC. But confused which one is the best R 32or R 410?

    • Abhishek Jain

      go for R32.

  • Rahul Gupta

    My room size is 13 ft x 12.5 ft. Im looking for a 5 star inverter split ac of Daikin ( noiseless and energy efficient)
    Kindly suggest me a suitable ac model.
    Thank you

    Rahul Gupta
    Kolkata

    • Abhishek Jain

      Hi Rahul,

      You need a 1.5 ton inverter split AC. You can look at these models from Daikin:

      Daikin FTKM50PRV16 (EER 3.8) – most energy efficient
      Daikin FTKP50PRV16 (EER 3.46)

  • Ajay Ingle

    Hi Abhishek,

    I am living on 8th Floor on top floor. My room size is 12 * 10. Room is sunfacing and have large window where sun rays directly enters room. My usage approximately 12 hours daily.

    Can you please suggest good AC for me? Also within range :)

    • Abhishek Jain

      Which city is this for? What is your budget?

    • Ajay Ingle

      Hi,

      City is Pune (Maharashtra) and range is 30,000 to 35,000.

      Regards
      Ajay Ingle

    • Abhishek Jain

      You need a 1.2 ton AC for your room or 1 ton inverter AC. You can look at:

      1.2 ton AC:
      Hitachi RAU514IUD or RAU514EUDA
      Whirlpool 3D Cool Platinum V or Magicool Platinum V
      Voltas 155 CY

      1 ton inverter AC:
      Daikin FTKM35PRV16 or FTKP35PRV16 (1 ton)
      Hitachi ACE or iClean Inverter AC (1 ton)
      Sharp AH-XP13LV, AH-XP13PHT, AH-XP13PMT, AH-X13PET (1.1 ton)
      Samsung AR12HV5NBWK or AR12HV5DAWK (1 ton)
      Panasonic CS-S12PKYP Econavi (1 ton)

      Most of these may be beyond your budget leaving 1.1 ton inverter AC from Sharp (especially AH-XP13LV).

  • Kaushik

    Which ac should be purchased split or window?

  • Rohit Sharma

    Hello Abhishek,
    i am rohit from udaipur (rajasthan) I want to Purchase a Good inverter AC for my room which is 10*13 feet. Well, I have visited several Showrooms, they all have different stories which made me Extremely Confused. Some said LG is best, some told go for Voltas and One told me you should either go for Daikin Or O-General, he also told me that DAIKIN is No.1 Brand in the world followed by O-General..

    1) I need a Robust AC that will run for years without any Problem.

    2) Which Brand should I go for is it Daikin or O-General or Hitachi or Blue star or any others. Is Daikin World No.1

    • Abhishek Jain

      Hello Mr Sharma,

      Your room needs 1.2 tons of cooling if you do not get direct sunlight on walls/roof. Else it needs 1.5 tons cooling. Now if you go inverter tech, 1 ton inverter AC would be good if your cooling requirement is 1.2 ton, else you need 1.5 ton inverter AC. Hitachi and Daikin have the most energy efficient models in inverter tech followed by Sharp. For Hitachi the reviews are mixed about their post sales service, but Daikin is good in general. So I would suggest you to go for Daikin.

  • Arjun Lahoti

    Hello Abhishek,

    Ur articles r very informative and let me thank u for ur efforts !

    I am planning to buy an Inverter AC of 1 Ton capacity but i am confused about which brand to opt for ! I have zeroed in on Dikin, Hitachi, Bluestar, Voltas and Sharp ! I hv heard that sharp uses Mitsubishi Compressors !
    Whats ur take on d brands mentioned above ! I need an AC which is durable and cools well ! Pls suggest d most reliable brand out of above. I live in Aurangabad (MH).

    Thanks,
    Arjun

  • Kunal

    Hi Abishek,

    Iam kunal and I stay in delhi.

    I bought 1.5 ton voltas 5 star split ac model no 185 ex few months ago. Initially it use to consume around 1.3 units of ac per hour but I felt that cooling is not that effecti and so I registered complain at service center.
    The service centre guy obserbed that ac is drawing only 5 amps of current which is muh lesser than rated current I.e 7.2 amperes and hence advised gas refilling for more effective cooling.

    Another day the other guy came and checked the pressure of compressure while running and found 70 psi which as per him is more than required and could be the reson for less cooling. Thusnhe realsed some gas untill the pressure came down to 60 psi.

    Now my Ac is drawing 7.1 apmpere of current and colling I feel become more worst. Elctriciy consumption is raised to 1.6 units per hr now earlier it was 1.3.

    Now at 37 degree C ambient temperature running AC for 2.5 hrs at Night with temp set to 24 degree C it only manages to bring down the temp to 29 degree C.in 2 hrs.

    Please dvise if I should call service centre and ask them to refill gas to 70 psi pressure or is my ac working fine.

    AC and room spec wre given belo2 for your reference.

    Ac: 1.5 ton, 5250 cooling capacity, 1586 w power consumption, 7.2 amprere rated current, 700 gm gas.

    Room: 14x10x12 feet
    Located on top floor roof explor3d to sun whole day, 01 window of 2×3 feet, west side wall has no adjacent building hence expoaed to sun after 3 pm.

    Awaiting you reply
    Regards
    Kunal

    • Abhishek Jain

      Hi Kunal, I already replied: ?Hi Kunal, As per my calculations, you need an AC with 5800 watts cooling capacity to handle peak summer day time temperature. So there can be two problems: 1) Your heat load may be high 2) The product you got is faulty. Does you room has lot of appliances, or does it have lot of people sitting in the room when AC is on? Because that also adds to heat load. If your AC is under warranty and if you can get it replaced, I would suggest that you try those options. Because it sounds more like a faulty product problem than under sizing problem. Because if it is highly under sized, it will draw more current than less current. Taking 2 hrs to bring down the temperature is not reasonable. It should ideally come down in 10-15 mins.?

  • Kunal

    Hi Abishek,

    Iam kunal and I stay in delhi.

    I bought 1.5 ton voltas 5 star split ac model no 185 ex few months ago. Initially it use to consume around 1.3 units of ac per hour but I felt that cooling is not that effecti and so I registered complain at service center.
    The service centre guy obserbed that ac is drawing only 5 amps of current which is muh lesser than rated current I.e 7.2 amperes and hence advised gas refilling for more effective cooling.

    Another day the other guy came and checked the pressure of compressure while running and found 70 psi which as per him is more than required and could be the reson for less cooling. Thusnhe realsed some gas untill the pressure came down to 60 psi.

    Now my Ac is drawing 7.1 apmpere of current and colling I feel become more worst. Elctriciy consumption is raised to 1.6 units per hr now earlier it was 1.3.

    Now at 37 degree C ambient temperature running AC for 2.5 hrs at Night with temp set to 24 degree C it only manages to bring down the temp to 29 degree C.in 2 hrs.

    Please dvise if I should call service centre and ask them to refill gas to 70 psi pressure or is my ac working fine.

    AC and room spec wre given belo2 for your reference.

    Ac: 1.5 ton, 5250 cooling capacity, 1586 w power consumption, 7.2 amprere rated current, 700 gm gas.

    Room: 14x10x12 feet
    Located on top floor roof explor3d to sun whole day, 01 window of 2×3 feet, west side wall has no adjacent building hence expoaed to sun after 3 pm

    Awaiting you reply
    Regards
    Kunal

    • Abhishek Jain

      Hi Kunal, I already replied: ?Hi Kunal, As per my calculations, you need an AC with 5800 watts cooling capacity to handle peak summer day time temperature. So there can be two problems: 1) Your heat load may be high 2) The product you got is faulty. Does you room has lot of appliances, or does it have lot of people sitting in the room when AC is on? Because that also adds to heat load. If your AC is under warranty and if you can get it replaced, I would suggest that you try those options. Because it sounds more like a faulty product problem than under sizing problem. Because if it is highly under sized, it will draw more current than less current. Taking 2 hrs to bring down the temperature is not reasonable. It should ideally come down in 10-15 mins.?

  • Shantanu

    Hi Abhishek,

    My name is Shantanu, can you please let m the actual difference between R-410a and R32 ? which is best interms of performance and economy perspective ? most of the inverter Acs nowadays are using R-410a and Daikin started using R-32.

    So if you can elaborate on this it will be helpful for most of us

    Thanks & Warm Regards,
    SB

    • Abhishek Jain

      HI Shantanu,

      Both R410A and R32 are HFCs. Daikin mostly uses R32. R32 is more energy efficient as compared to R410A, but it is mildly flammable and manufacturers have to take care of this aspect while designing their models. Here is a research paper that compares R410A and R32 in India: http://irnetexplore.ac.in/IRNetExplore_Proceedings/Chennai/ARME_16June2013Chennai/ARME_16June2013Chennai_Doc/11-14.pdf.

      Here is comparison of R32 vs R410A (source: http://www.emersonclimate.com/en-us/documents/r32_and_hfos_as_low-gwp_ref_for_ac.pdf):

      The relative merits of R32:
       considerably lower refrigerant cost than R410A and potentially better affordability
       available now in high volumes globally since it is 50% of R410A composition
       8% higher critical temperature, better performance at higher ambient conditions
       similar pressure and pressure ratio, a close drop in replacement for R410A without major system redesign
       9% lower liquid density, lower system charge requirement
       28% lower vapor density and lower system mass flow rate, about 50% lower pressure drop expected
       higher volumetric capacity despite the 28% lower mass flow due to 4350% higher latent heat
       41% higher liquid thermal conductivity, higher heat transfer coefficient at same mass flux
       No glide and potential to optimize heat exchanger with smaller tube volume for further charge reduction

      The disadvantages are cited below:
       A2L mild flammability rating (difficult to find aLowGWP A1 nonflammable fluid)
       higher compressor discharge temperature from higher vapor specific heat
       New oil likely required since existing polyolester (POE) oil is not miscible with R32

      Hope this helps.

      Regards,
      Abhishek

  • Sujit

    Hi Abhishek,

    Would you suggest to go with a R-22 unit in current situation- where it is about to phase out completely of the market after Dec 2015? I am surprise to see brands like Carrier, Daikin, Hitachi still not ( in 2014) stopped producing R-22 units, though some have introduced the R-410 units. There is still a debate on R-22 vs R-410 in aspects of cooling and maintenance that- R-410 is heavy on maintenance due to the high pressure of the refrigerant, on the other hand R-410 is better than it’s predecessor if there is a leakage problem and need to re-fill the unit since it will be available in the market.

    Please guide- how efficient it will be to have a R-22 SPLIT AC unit in this scenario of phase out, if I am considering a life time of a SPLIT AC for say 8-9 years.

    Regards,
    Sujit

    • Abhishek Jain

      You can check this link for more details: http://www.indiaenvironmentportal.org.in/files/FinalRoadmap.pdf

    • Abhishek Jain

      Hello Mr Sujit,

      As per montreal protocol, production and consumption of R22 will freeze at 2015 levels from 1st January 2016 and will be completely eliminated by 2040. Currently more than 50% models in the market use R22. So R22 will be available for next 8-9 years. But if you look at the latest energy efficient models in the market, most of them use R410A or R32 or R290. So in future as the efficiency improves, most of the models will not use R-22. But the gas will surely be available for next 8-9 years.

  • S R Ghosh

    Hi!
    Whether I should go for coper or alloy condenser and what is the differences in between them
    I need a 1.5 ton AC and I am confusing between the following
    1. Hitachi RAU518HUD having EER of 3.80 and 1448 W compressor consumption with R22 refrigerant.
    2. Panasonic KC18QKY inverter 1580 W (300 W ~ 1720 W) compressor consumption with R410 refrigerant
    If you have some other idea also please suggest
    Thanks

    • Abhishek Jain

      You can also look at Samsung AR18HV5DAWK which has EER of 3.8 and also has inverter tech.

    • Abhishek Jain

      Advantages of Copper System:

      1) Less prone to corrosion (galvanic) as compared to copper-aluminium mixed system. This is important when you live in humid areas.
      2) In case of damage, copper is easier to repair. Aluminium coils will have to be replaced completely, whereas copper coils can be repaired.
      3) Copper is better in heat exchange, however you must look at EER and cooling capacity of the AC and not just this aspect for efficiency.

      Amongst the two Panasonic KC18QKY inverter would work out more energy efficient.

  • Padam

    Hi Anik

    Godrej RD Edge Pro PDS 5.1 will be a good option for you. Their website says they use a 100% Green refrigerant which is CFC/HCFC/HFC free. It seems to be better than R-134A (an HFC refrigerant) that is used by most of the manufacturer these days.

    Its price varies from Rs.15000 to 17000 on online shopping sites however its yearly consumption is 204 units (https://www.bijlibachao.com/top-ten-appliances/what-are-best-refrigerator-fridge-lg-samsung-whirlpool-india.html) and its BEE rating is 5. So it can recover the extra cost in long run which you’ll pay upfront.

    NOTE: i am No Expert by any means at all and just a normal consumer and all the sources of my knowledge is web surfing.

    Regards
    Vivek

  • anikghosh

    Hi,,,can you suggest me which refrigerator brand uses better refrigerants?? I’m from kolkata & planning to buy a single door (180-200ltr) refrigerator under Rs.15,000/-

    • Padam

      Hi Anik

      Godrej RD Edge Pro PDS 5.1 will be a good option for you. Their website says they use a 100% Green refrigerant which is CFC/HCFC/HFC free. It seems to be better than R-134A (an HFC refrigerant) that is used by most of the manufacturer these days.

      Its price varies from Rs.15000 to 17000 on online shopping sites however its yearly consumption is 204 units (https://www.bijlibachao.com/top-ten-appliances/what-are-best-refrigerator-fridge-lg-samsung-whirlpool-india.html) and its BEE rating is 5. So it can recover the extra cost in long run which you?ll pay upfront.

      NOTE: i am No Expert by any means at all and just a normal consumer and all the sources of my knowledge is web surfing.

    • Abhishek Jain

      Hi,

      Most brands do not mention the refrigerant used on their website for smaller sized refrigerators. However these days most efficient models use R-134A or any of the HFCs. Another reader of Bijli Bachao called up LG and got to know that their small sized BEE 5 star rated refrigerator uses R-134A. However he checked for a specific model which was bigger in size than the size you need. But you should check BEE 5 star rated LG models.

  • Vivek

    Hi Abhishek, i am curious about which refrigerant (CFC/ HCFC/ HFC) do inverter technology refrigerators use? In other words which is the most environment friendly inverter technology refrigerator ? We are looking for around 250 L capacity fridge preferably the most energy efficient one (BEE 5 star in 2014)? Yes i want to have it all so please suggest us a model around 25k ?

    truly rocking website, Great effort..Hats off. Thank You for creating such a go and find your all the answers about home electricity questions….All The Best :-D

    Regards
    Vivek

  • Nitin Jain

    Hello Abishek
    I am Nitin Jain from TN.
    I have come across your name in google
    while searching for One Ton Five Star
    Rated Air Conditioners. I have
    shortlisted Samsung and Voltas as
    good for power consuming and efficient
    cooling. Usage would be around an hour
    or two only at night for a small room.
    And also would you suggest any other
    brand apart from the two. Please Reply.

    • Abhishek Jain

      Hello Nitin,

      There are several factors that one need to consider while buying AC:

      1) Tonnage of AC: Depends on several factors, but primarily on size of room, city where you live in, window sizes, people in the room. Oversized AC consumes more electricity, and undersized does not cool properly.

      2) Star Rating: Choice of BEE 5 star/inverter tech or a lower rating depends on your usage of AC. If your usage is more than 1000 hrs per year (with traiff more than Rs 5), it is better to go for higher efficiency models. Benefit of inverter tech is that it is a variable tonnage AC and as the tonnage requirement is different every month and every day, this AC auto adjusts to the needs and thus saves electricity.

      3) Brand: Some brands offer better reliability/technology and some have better service network. One has to factor in both. Once you have decided on star rating, the most efficient models from good brands can be selected.

      If you provide us with more details as in which city do you live in, size of your room, which floor is it on, is there any floor above it, are the walls exposed to sun, usage in hours per day and months per year, and approximate budget, then we can recommend you something.

      Hope this helps.

      Regards,
      Abhishek

  • Ashank

    Hi Abhishek, thanks for the info .. Can you suggest me a 1.5 ton split ac? .. Nothing extravagant, I am just looking for an energy efficient ac optimal for about 8hrs a day worth of usage ..

    Can you elaborate a bit about the shelf life of an ac? .. My concern is whether I should go for a R22 or the new R410? .. What are the value for money options available in the R410?

    Ashank

    • Abhishek Jain

      Hello Mr Ashank,

      There are several factors that one need to consider while buying AC:

      1) Tonnage of AC: Depends on several factors, but primarily on size of room, city where you live in, window sizes, people in the room. Oversized AC consumes more electricity, and undersized does not cool properly.

      2) Star Rating: Choice of BEE 5 star/inverter tech or a lower rating depends on your usage of AC. If your usage is more than 1000 hrs (with traiff more than Rs 5), it is better to go for higher efficiency models. Benefit of inverter tech is that it is a variable tonnage AC and as the tonnage requirement is different every month and every day, this AC auto adjusts to the needs and thus saves electricity.

      3) Brand: Some brands offer better reliability/technology and some have better service network. One has to factor in both. Once you have decided on star rating, the most efficient models from good brands can be selected.

      If you provide us with more details as in which city do you live in, size of your room, which floor is it on, is there any floor above it, are the walls exposed to sun, usage in hours per day and months per year, and approximate budget, then we can recommend you something. Regarding R22 vs R410A, the world is moving towards R410A and future will be all about it. Most energy efficient ACs use R410A. Once you identify the right size/right technology, you can look at the options available in R410A.

      Hope this helps.

      Regards,
      Abhishek

  • Nirmal

    Hi Abhishek,

    planning to buy Blue star split 1.5 ton 5HW18ZARF1 (5star rated) with R-410A , as R-410A is new in India and right now available in only specific models will it be a problem for refilling the refrigerant especially for someone who keep shifting every two years???? Is R-410A easily available everywhere???

    • Abhishek Jain

      Hi Nirmal,

      There are a lot of models with R-410A in India. You should not have any problem with that.

      Regards,
      Abhishek

  • navin

    sir,
    i want to buy whirlpool 3D Cool Climate Control Platinum V (1.5 T) . is this good for me or i go for inverter ac. my room size is 10*17*10

    • Abhishek Jain

      which city is this for?

      Regards,
      Abhishek

  • Yash

    @Pingal Pritam
    I don’t know much about 5star but Samsung 1.5 Ton Inverter AR18HV5NBWK for 41500 at snapdeal bit slightly above your price range and comes with R-410a, eer is 3.82, bright features, long lasting warranty.
    Good Luck.

  • Pingal Pritam

    I need a 1.5 ton split AC for home use. But I’ve not found any 1.5 ton AC with R-410A or R-134A under Rs.40000. All the brands offer R-22. I’m very serious about the environmental effects of the AC. Please help.

    • Abhishek Jain

      Hi,

      If you are specifically looking for R-410A, then you can get Carrier Midea Magna Green 1.5 ton model which is a BEE 4 star rated AC. Alternatively you can try for Daikin FTC50 which is on R-32 refrigerant which is also an HFC and a BEE 5 star rated AC. Both should come under Rs 40000.

      Hope this helps.

      Regards,
      Abhishek

  • Yash

    Thanks for the help but as I’m are planning to move to a bigger apartment after 1 or 2 years 1ton inverter ac seems to be perfect for both. I had to increase my price range below 42k its a 1time buy and I need a good inverter ac which would last for more than 5yrs. I have listed some models below and hope you could help me buy one of these.
    1. Hitachi ace RAU013EUEA ( Do they have any bacterial or other filters? Are those filters necessary? ) 41.5k
    2. panasonic CS/cu-S12PKY ( Its the 2013 model the new model comes with p in the end ) near 40k
    3. Daikin FTKP35PRV16 near 40k
    4. Daikin FTKM35PRV16 near 40k
    Is it necessary to install voltage stabilizer?
    I have visited nearby stores but panasonic and daikin models are all out of stock.Providing with some information if possible on where to buy last 3 models near my would be highly appreciated.
    Thanks you.

    • Abhishek Jain

      Hi Yash,

      I am surprised to see Daikin models at 40K. I have seen them for about Rs 32-35 K on snapdeal and other online portals. Hitachi is very high on efficiency and its EER is above 4 but it is certainly expensive. I think if price is a concern you should go for Daikin as they are economical as well as efficient. If not in offline stores, you can surely get them on online stores at quite reasonable rate.

      As for the filters, they are added to improve indoor air quality. If your room remains closed most of the time (even during the day) then they are good. Otherwise its more of an added feature. And yes if you have voltage fluctuations in your area, then you do need to install voltage stabiliser.

      Hope this helps.

      Regards,
      Abhishek

  • Sushil Sirsat

    I have purchased an AC 2 years back. At that time invertor ac’s were costly as they were newly introduced. I have heard about Sharp invertor ac’s which uses R410A refrigerant. The shop service person told that in future all conventional ac’s companies will be bound to use this refrigerant & only invertor ac’s will rule. My query is that can i use R410A refrigerant in my conventional Panasonic 5 star rating ac?

    • Abhishek Jain

      Hello Mr Sirsat,

      I am not sure on that. You will have to check it out with Panasonic.

      Regards,
      Abhishek

  • Jay

    R32 is in development stage in India as Daikin & Panasaonic likely to impose on this. I am working with a reputed compressor manufacturing MNC. Can you please tell more about R32?

    • Abhishek Jain

      Hi Jay,

      We do not have much technical details about R32. Most of the things that we have mentioned in this article are from the pdf link mentioned in the reference section.

      Regards,
      Abhishek

  • Yash

    Hello!
    I live in Mumbai-Mulund and planning to buy Inverter ac for my 12*10 bedroom. My price range is near 34k and I will be using it for nearly 10hrs/day i.e 3500hrs/yr. I need brand with good customer service. I am confused between Daikin,panasonic,voltas,LG,samsung. ( Hitachi out of my price range and I have heard bad reviews about sharp customer service)
    What does DC Inverter air conditioner means?
    Thank You.

    • Abhishek Jain

      Hi Yash,

      For a 120 sq ft room in Mumbai, even a 0.75 ton inverter AC is good enough. You can look at any of these models: Panasonic CS-YS9PKY, Daikin (FTKM25 or FTKP25 or FTKE25). You can get all these in less than 30K as well.

      As for why is it called DC inverter tech: it has a variable speed motor which needs Alternating Current (AC) at different frequency from that of the incoming current. It has a rectifier (or inverter) that converts AC to DC (Direct Current) and then again DC to AC of desired frequency. That is why it is also called DC or inverter tech.

      Hope this helps.

      Regards,
      Abhishek

  • Chandra

    Hi Abhishek,

    It was a pleasure reading your post(s) and first of all Kudos to your ground work. A Must recommended website.

    I live in a 14*10 flat in Hyderabad and I need to take a call between LG LSA5ES3V and Hitachi RAU318HUD.

    A lot is said about the Copper insulation in Hitachi. But I wanted to check with the GURU before choosing the best.

    Help and a Quick Reply deeply appreciated.

    Thanks,
    Chandra

    • Abhishek Jain

      Hi Chandra,

      LG model is BEE 2 star (as per 2014 rating) and Hitachi model is BEE 3 star (as per 2014 rating), the EER of the LG model is 3.00 and that of Hitachi is 3.29. Which means Hitachi model is about 9% more energy efficient than the LG model. We do not recommend going for anything less than BEE 3 star so I would not recommend the LG model (not because of the brand but because of the energy efficiency).

      More Copper in any air conditioner makes it long lasting and easy to maintain. It is also better for heat transfer. So it is always better to go for an air conditioner with copper coils.

      Hope this helps.

      Regards,
      Abhishek

  • H Awasthi

    Hi Abhishek,
    Thank you for the valuable insights shared by you. I am planning to buy an Inverter AC with 1.5 T capacity for my room (15*10 feet) situated in the 5th floor just below the roof. I have shortlisted Mitsubishi Heavy Industries SRK18YJ-S inverter tech split AC for my room based on recommendations from my previous AC mechanic.

    The brochure says it has a COP of 3.44. Is is less energy efficient than a 5 star AC in that case? Do you suggest any other brand?

    Your valuable thoughts would be very useful.

    Regards,
    H Awasthi

    • Abhishek Jain

      Hello Mr Awasthi,

      Till sometime back there was only one measure of efficiency which was COP (or EER as some would call it). And it was a ratio of cooling capacity and input power. It worked well for evaluation as the cooling capacity (or tonnage as you can call it) of an air conditioner remained constant. Most manufacturers wer making 1 or 1.5 ton ACs. And you had to buy a 1.5 ton AC even if your need in peak summer was 1.2 or 1.3 tons. Also even though the heat load varies with seasons, the tonnage remained the same. But all this has changed with inverter tech. It can auto adjust as per the need of the room at any given moment. So a 1.5 ton inverter AC can scale down to 1.1 ton if the need of the room is so and thus saving electricity.

      So now if we compare a 5 star AC (COP of 3.6) with inverter tech of 3.44 COP:

      Max power consumption of a 5 star 1.5 ton AC would be: 5300/3.6 = 1473 watts (1.5 ton is equal to 5300 cooling watts).

      Now if an 1.5 ton inverter tech is running at 1.1 ton capacity then power consumption would be: 3900/3.44 = 1134 watts (1.1 ton is equal to 3900 watts of cooling).

      So it is always better to go for inverter tech because the heat load keeps varying.

      As for the brand, if you ask me a model which has the highest COP then I would say Sharp has 2 1.5 ton models (AH-XP18PMT & AH-XP18PHT) with 4.41 COP.

      As I don’t know which city you live in, I will not be able to comment if 1.5 ton is sufficient for your room or not.

      Hope this helps.

      Regards,
      Abhishek

    • lakshit tak

      Hi Abhishek,

      I saw your valuable feedback on AC. Please suggest people to use Godrej Diet AC , which has a cooling capacity of 3325 with power input of 841 watts. i.e amazing 3.90 EER. they are using R290 gas with all safety features.

    • Bijli Bachao Team

      Hi Lakshit,

      Godrej diet AC is a very energy efficient split AC. However it is still a fixed speed AC. Some (not all) of the inverter tech ACs are much more energy efficient than this AC.

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