Electricity Saving Tips For Homes And Offices

Split or Window … which air conditioner should you buy?

By on May 31, 2014

Should I buy a split air conditioner or a window air conditioner? This is a question that many air conditioner buyers thinks of, before making a purchase. And we keep getting this question quite regularly at Bijli Bachao. It is not just about split or window, but about a whole lot of things that should be considered while buying an air conditioner.  Air Conditioner is an appliance that can significantly blow up your electricity bills and utmost care should be taken while buying one. With this article we would try to provide you some guidelines on things to take care of before making a purchase decision for an air conditioner. Please note an air conditioner bought once will go on for next 10 years at least and thus it is important to make a right decision.

Air Conditioner

Split vs Window

Buying a split or a window is something that worries a lot of people. But from energy efficiency perspective there is no preferred choice. Both split and window can be equally efficient. What matters is EER or Energy Efficiency Ratio of the air conditioner. EER represents the amount of cooling an air conditioner can provide per watt of electricity it consumes. Bureau of Energy Efficiency rates air conditioners on its star rating based on EER of air conditioners. Higher the EER of air conditioner higher the star rating it will have. So a 5 star rated air conditioner provides more cooling per watt of electricity used.

Both split and window can have high EER ratios. But it is observed that Split air conditioners have more number of models in BEE 5 star rating as compared to Window air conditioners (check our research on air conditioners at this link: link). So if you are looking for high efficiency air conditioners then split air conditioners can provide you more options.

The main difference between the two is that window air conditioner has a single unit whereas split air conditioner has 2 units (indoor and outdoor). Split is lot more silent in operation as compared to window and looks aesthetically pleasing, but is relatively more complicated to install and requires more space as compared to window air conditioner.

Right sizing an air conditioner is very important

The most important thing that one should figure out before buying any air conditioner is the right size of the air conditioner. This can significantly impact your electricity bills. And from size we mean tonnage of air conditioner. Every room that is cooled has a certain amount of heat that depends on:

  1. Size of the room. This determines the amount of air in the room that needs to be cooled.
  2. Number of people in the room. Every human being emits heat and air conditioner needs to cool it.
  3. Amount of stuff kept in the room. Please note every item kept in the room will get cooled from the air conditioner, so lesser the stuff, lesser the electricity air conditioner will consume.
  4. Number of electrical appliances in the room (most electrical appliances emit heat, especially lights). Incandescent light bulbs can increase cooling load.
  5. Windows in the room. More the windows, more is the heat coming from outside. Well-insulated windows reduce cooling load. Check our insulation section for more details: http://www.bijlibachao.com/Save-Electricity/Insulation/
  6. Walls facing the sun can increase cooling load. Touch your walls and windows to check if they are hot or not and using the tips in insulation section to prevent heating of the room.

The amount of heat in a room and that coming in from walls and windows is represented in BTU (or British Thermal Unit). BTU is sum of heat from all the above-mentioned sources.

Every air conditioner has a cooling capacity, which is represented in BTU/hr. It is the BTUs of heat that it can remove in an hour. If the heat coming in the room (in BTUs) is more than the heat that air conditioner can remove, then the air conditioner will not be as effective. Thus an undersized air conditioner cannot remove heat effectively and the compressor of the air conditioner will continue running all the time thereby consuming more electricity.

With an undersized air conditioner, the compressor will keep running all the time and the temperature will not reach the desired level. They will not only be ineffective in cooling, but will also consume more electricity.

An oversized air conditioner will not only over cool your room but also will be ineffective in removing the humidity in a room. So if you set AC to 25, the extra energy that the compressor provides will cool it beyond 25. It will have shorter run cycles but all air conditioners are designed for optimum run cycles and if the cycle is shorter than that then the efficiency is reduced (source: energy star).

So every air conditioner is designed to run at optimum efficiency only if it is used as per the right size. So always size the air conditioner properly. You can use the calculator available at this link before buying an air conditioner: http://www.lg.com/in/support/ac-tonnage-calculator.

If you are not sure about what size to buy, you can always buy an inverter technology air conditioner, as it adjusts to the size and requirements of the room automatically, and thus makes optimum electricity consumption. To check more about inverter ac see our article: Air Conditioners with Inverter technology can help save electricity.

Look for the right options in the air conditioner

In a previous article (Various modes for running air conditioners and their impact on electricity bill) we discussed about various modes of air conditioners and their impact on electricity consumption. It is very important to figure out if the air conditioner has all the modes as per your requirement. If you live in humid area, a dry mode is important. Any air conditioner with energy saver mode and features should be preferred.

Star rating is for real

BEE Star rating of air conditioner do matter a lot. Any air conditioner would consume anywhere between 1-2 units per hour of usage based on tonnage, efficiency and size. Which means if it is used for 10 hours per day, it can consume about 10-20 units in a day or 300-600 units a month (for 10 hours of use daily). At an average rate of Rs 6-7 per unit (you can check your per unit rate using our calculator: Online Electricity Bill Calculator – For all states in India) it can be close to Rs 1800-4000 per month. If your usage is high then the yearly cost of an air conditioner can go very high. In case of high usage, incremental cost of buying a higher star rated air conditioner can easily be recovered in a few years. Please note that the air conditioner will work for at least 10 years and the electricity prices are on a rise. Buying an efficient one while buying a new air conditioner can prevent a lot of heartburn for you in future.

It is important to make a right decision while buying an air conditioner, as it is a long-term utility for you. Do not let lucrative deals, discounts and persuasion by a sales person impact your decision to buy an efficient appliance. A wrong decision on an appliance like air conditioner can significantly impact your electricity bills. We are trying to work out a calculator that can help you choose the right air conditioner for you and hope to release it soon. Till that time you can check the list of top ten most efficient air conditioners at: Top Ten Air Conditioners in India by electricity consumption and size.

References

http://www.energystar.gov/ia/home_improvement/home_sealing/RightSized_AirCondFS_2005.pdf

http://www.energystar.gov/index.cfm?c=roomac.pr_properly_sized

Have question, doubt or comment? Leave a message (please submit once as the comments take time to appear online)

There Are 197 Comments

  1. Arun says:

    Sir,
    We live in tamil nadu, india.
    We have a 2.0 tone Blue star ac (year 2009) fixed with stabilizer and mcp switch.
    we have three phase EB line supply, out of which one phase is connected to AC alone.
    The AC when switched on, after 2 min, it tries to start, but the stabilizer trips it every time.
    The connection is as follows
    EB -> MCP -> stabilizer -> AC
    We disconnected MCP and tried,
    We disconnected stabilizer and tried,
    We even gave EB -> AC direct connection and tried.,
    But AC tries to start, but trips every time.

    when checked with service people of blue star, they changed the capacitor and tried, but again trips every time. But when taken to their service station, the AC runs fine.
    Then i checked EB line. the voltage is between 200 – 240.the amps is between 0 – 3. the power factor is between 0-1
    Why is the AC tripping and not running at all ? how to solve this problem ?

  2. Sudhanshu Arora says:

    Hi sir,
    I am looking to buy an AC for my room on first floor of my duplex.
    room size: 16′x16′x12′ (lxbxh)
    it receives direct sunlight throughout the day. 3 sides plus roof exposed to sunlight.
    ventilation is through one window of 4′x4.5′.
    usage will be around 1000 hours or less per year.
    please recommend which type, tonnage, star rating brand of AC should I go for?
    also the usage may increase in future to 13-1400 hours so suggest for both the cases.
    Thanks,
    Sudhanshu Arora

  3. Rupesh K C says:

    Hi Abhishek,
    I m staying in Mumbai and looking for 1 ton inverter AC for reducing my electricity cost as i run AC for at least 10 hours a day.

    I have short listed four ac’s. I will be thank full if u can suggest me looking both high energy saver and service of brand.
    FTKS35EVMA Daikin R410 Gas
    FTKE sereis Daikin R22 Gas
    FTKP sereis Daikin R32 Gas
    SRK13YJ-S Mitsubishi Heavy

    Your prompt reply will be highly apprecited

    Thanks
    Rupesh K C

    • Abhishek Jain says:

      Hi Rupesh,

      FTKS is a hot and cold AC. Amongst the list FTKP will be good. Or FTKM will be better.

      • Rupesh K C says:

        Dear Abhishek,
        I m getting FTKS only cooling R410 Gas Thailand made. Also how about SRK12YL-S mitsubishi heavy. ( I think fter sales service is poor, not sure)

        Also please explain if any difference R22, R32 & R410 Gas. Will this have effect on electricity Bill

        • Abhishek Jain says:

          MHI is a good brand however not highly visible in India. So it is highly likely that its service may not be effective if you are in a smaller city. FTKP and FTKM are better than FTKS (indian made) for cooling. I would still suggest that you go for Daikin. As for gas, it does not have impact on electricity bill, but R32 and R410 are greener and have lesser negative impact on environment.

  4. Deepak Mitra says:

    Dear Abhishek,
    1. Office Space : 10 x 18 2. Area : Delhi, 3 : no. of people : maximum 3, Location : First Floor there is two storey Building, 4. Option : split or window can be installed 5 : Sunlight : no Direct Sunlight 6: Brand : Hitachi/Bluestar/LG/Carrier any..Please suggest

    • Abhishek Jain says:

      Hello Mr Mitra,

      You need about 2 tons of cooling if the ceiling receives direct sunlight (which I assume is right because you said first floor in two story building). If that is not the case then you need 1.7 tons of cooling. You are on commercial connection and I think you should go for inverter tech AC. In case you need 2 ton cooling then 1.8 tons of inverter AC should be good. If you need 1.7 ton then 1.5 ton inverter tech should be good. You can look at these models:

      1.5 ton inverter:
      Hitachi Ace or Kampa inverter 1.5 ton
      Daikin FTKM50PRV16
      Samsung AR18HV5DAWK
      LG BS-Q186C8R6
      Sharp AH-XP18PHT, AH-XP18PMT, AH-X18PET, AH-XP18MV
      Samsung AR18HV5NFWK

      1.8 ton inverter tech:
      Daikin FTKP60PRV16
      Daikin FTKM60PRV16
      Sharp AH-X21RET
      LG BS-Q246C8R3
      LG BS-Q246C8A2
      Samsung AR24HV5NBWK

  5. Deepak Mitra says:

    Sir, as mentioned in my last request area of my office space is 10 x 18 and it is on first floor…there are two storey building, usage approx 8 hrs a day…there is no direct sun light on the walls.we are looking for value of money product.either split or window…Please suggest…should i buy now or should i wait for summer sale

  6. Deepak Mitra says:

    We have Office at First Floor and area is about 10 x 18 we can use either split or window…Please suggest which one i should use…Please suggest 5 star only.

    • Abhishek Jain says:

      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, sizes of your room, which floor they are 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

  7. Deepak says:

    hello sir,kindly suggest me a best split ac for a room size of 12*10*10 ground floor,no direct sunlight and there is room above of thjis room,i live in ghaziabad city.so,plz suggest me as per the energy efficient ac whether inverter technology or bee 5 star ac is good for me to installed.
    thanks

    • Abhishek Jain says:

      You need 1.2 ton fixed speed or 1 ton inverter AC for your room. You can check these:

      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)

      Would suggest to go for inverter AC.

      • Deepak says:

        Thanx sir appreciate ur work,also tell about the installation process means what should be the minimum and maximum distance between the indoor and outdoor unit bcoz as I told u before my room is on ground floor but the open area is on the roof of the second floor of height 10 feet each.

        • Abhishek Jain says:

          Well there is no specific minimum or maximum distance that is mandatory. The pressure of refrigerant in the tubes should be right. If you look at technical specifications of any model, they will give maximum piping distance (mostly about 12 to 15 mts). There is no minimum. It is just that if you increase the length more than that specified, you will have to add extra refrigerant to maintain the pressure which will come at additional costs.

        • Deepak says:

          Thanx sir for ur valuable suggestions,I have 2 more query to clerify I have a 4kw power backup connection and the load is about 3 to 3.5kw in summers and under 2kw in winters as my electricity bill shows so tell me there is a need to exeed power backup connection to fix inverter technology ac of 1 or 1.5 ton?
          Second question is that according to ur suggestion 1 ton of split ac is sufficient acc to my room size but I want to know I have a separate room of same size beside of this room now I want to install 1.5 ton of ac instead of 1 ton with exhaust fan between the wall of this two rooms,1.5 ton inverter ac is installed in one room and the cool air will pass by the help of exhaust fan into another room for both roomates feels cooling,this is possible or not?
          Thanx once again m eagerly waiting for ur reply.

          • Abhishek Jain says:

            1 ton inverter AC would add 1 KW and 1.5 ton inverter would add 1.5 kW to the load. Also if you add another room of the same size then the tonnage requirement will double up. So if the room needs 1 ton, then for two rooms, the requirement would be 2 ton.

  8. Mandeep singh says:

    hello , kindly suggest us a split inverter technology AC for a room size of 12 * 12 *10 .( ground floor)
    no direct sunlight .

  9. ravi says:

    ok so if i have to choose in mistubushi 1.5 tonnes which would be right model that u will suggest .. I have few lg ac in my house but i find their cooling is not that good and also thier energy consumption is high so i certainily am not much satisfied with lg though their service is good … and if u have any personal experience with 1.5 tonne ac then suggest that company model too and also let me know abt its service bz thats the biggest pain in a$$ with many companies bz its electrical stuff and so there is bit of luck too as some times best companies ac peice are faulty for u but may be good for others… and i will also go to shop and will get some models code and will let u know too and then i can ask best among those …….. And ya one more thing i was discussing with my brother abt 3 star and 5 star … he said that energy saving is not as much compared to the models rate differece and by the time i buy ac next time insteaad of saving money i am infact loosing some … is that thing true ???

    • Abhishek Jain says:

      Hi,

      If you are looking for Mitsubishi Electric then there is one 1.5 ton model: MS-GK18VA which is a BEE 5 star rated model. If you are looking for Mitsubishi Heavy Industries then there are 3 models: SRK21CNS-S6 (BEE 5 star), SRK19CK-6 (BEE 3 star) and SRK19CK-6 (BEE 2 star). Mitsubishi is a good brand for sure. As for 5 and 3 star rated AC, the choice will depend on your usage. 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.

      • ravi says:

        well i checked in the market and there is mistubushi electric acs model avlaible …. mistubushi heavy elctric model not there … in mistubushi electric also there is 1 3 star model MS-HK18VA …. so how abt this model and will mistubushi be better than lg in 1.5 tons considering cooling, power consumption and after sales service as i saw list prepared by u for the tonnage catagory in which u listed the top model but i dint find mistubushi there in 3 star catagory and top slots were taken by lg if not wrong … bit confused which among these 2 i should prefer if i were u …..

        • ravi says:

          among mistubushi heavy industries and mistubushi electric i found abt heavy industries review on net that its cooling is great or even better than most premium brands like hitachi , diakin , lg etc but service not as good bz they r just imported by 3rd party but for mistubushi electric i cant find enough on net abt its cooling …. but from net reviews can tell that their service setup is fine . even in my areaa i found thta there is support for mistubushi electric but no service facility for mistubushi heavy industries .. can u tell from ur experience or if u know some person using mistubushi electric , how is their cooling ….. regards

          • Abhishek Jain says:

            Hi Ravi,

            Cooling depends on cooling capacity of AC. Higher the cooling capacity, faster is the cooling (or higher the tonnage, faster the cooling). So cooling is specific to model and not to brand. Brand is more for reliability, technology and service.

          • Abhishek Jain says:

            Also as per my knowledge, ME is as good as other Japanese brands like Hitachi & Daikin in terms of technology and reliability.

          • ravi says:

            well they r sister company mistubushi electric and mistubushi heavy industries …. but i saw on consumer complaint forum and there people commented on heavy electric .. the major problem they had was with their service bz their products are just imported by international aircon to india and so they dont have great service setup here … but with mistubushi electric i am not able to get any reliable input abt their reliability and service …. so if u have any proper input abt it or know someone using them then let me know the inputs ……

            and thanks for the help i m getting on ur forum . quite informative …

          • Abhishek Jain says:

            Hi Ravi,

            Sorry we do not have feedback on MHI vs ME comparison.

    • ravi says:

      finally i have decided to go with mistibushi heavy industries 1.5 tn ac . abhishek have u got any input how far i can rely on their sercive bz i conpared their technology and cooling and area it can cover , its by far more better than mistibushi elctric and lg products … so any intel on their after sales service pls enlighten me with the info ….

  10. Mat says:

    Hi Guys,
    Can we go for IFB Kid series A/c….Plz suggest…

    Regards,
    M

    • Abhishek Jain says:

      The energy efficiency numbers do not look very exciting. Cooling Capacity is 5145 W and power consumption is 1704 watts (http://www.homeshop18.com/ifb-split-1-5-air-conditioner-iacs18ck3tcc-3-star-children-series/household-appliances/home-appliances/product:30548471/cid:4259/) …. which means EER is just about 3.02 … which is quite low. You can certainly get better ACs.

  11. Tanushree Sharma says:

    Hi,Abhishek your website is a great effort! And for my power requirement, I’ve a fridge of 500 watt, a ceiling fan, a CFL, a normal TV.. Would 2kw power supply be enough for 0.8 ton A.C.?

    • Abhishek Jain says:

      The AC you mentioned has power rating of 910 Watts. Even if we take 1 kW, then you have another 1 kW. Fridge is 500 watts, Ceiling fan would be 75-90 Watts. CFL another 25 watts. A CRT TV would be another 120 watts. So 2 KW should be good enough.

  12. Tanushree Sharma says:

    I have a power connection of 2KW. Would it be sufficient for a 0.8 ton window A/C? What kind of Voltage stabilizer do i need? I have a 100sq.ft room & I’m thinking to buy Haier 0.8 Ton 1 Star HW-09CH1N Window Air Conditioner, and Voltech Voltage Stabilizer (V-Star1). I need an expert opinion. Please help!

    • Abhishek Jain says:

      0.8 ton window AC should work on 2 kW connection however it will also depend on other appliances that you have (because the sum total of all should be less than 2 kW). Before buying stabilizer you should know the levels to which voltage in your house drops. If it is less then you can go for small range voltage stabilizer, else you would have to go for a larger voltage range stabilizer. Some companies make stabilizers only for ACs which have intelligent time delay system which protects compressors. So it will be better to go for such voltage stabilizer. The model you have chosen seems to be good for ACs.

  13. Satish Shah says:

    Bareilly. No there’s no direct sunlight on either of the walls.

    • Abhishek Jain says:

      You can go for BEE 3 star 1.5 ton AC. You can look at these models:

      Brand Model Cooling Capacity (in Watts) Power Consumption (in Watts) EER Ratio
      HITACHI RAW318KUD 5100 1650 3.09
      HITACHI RAV318HUD 5100 1650 3.09
      LG LWA5CS3F 4850 1610 3.01
      LG LWA5BP3F 4850 1610 3.01
      LG LWA5PS3F 4850 1610 3.01
      LG LWA5CP3F 4850 1610 3.01
      HITACHI RAW418KTDG 5200 1735 3
      LG LWA5MR4D 5275 1760 3
      PANASONIC CW-YC1814YA 5054 1700 2.97
      LG LWA5CS3F1 5050 1705 2.96
      LG LWA5CP3F1 5050 1705 2.96
      GODREJ GWC 18 GQ 3 WNC 5125 1737 2.95
      BLUESTAR 3WAE181YC 4950 1690 2.93
      CARRIER Estrella Plus 5250 1800 2.92
      BLUESTAR 3W18LB 5030 1730 2.91
  14. Satish Shah says:

    Hi Abhishek,

    Please suggest some good AC brands for room size 13×11 foot, height 11.5 feet, which consumes less electricity & cools effectively. I intend to buy 1.5 ton split AC. There are 4 windows in the room. It is in ground floor and there is no direct sunlight on AC. Our usage would be around 800-900 hrs annually.
    Also please suggest the machine position of indoor and outdoor unit. Should the outdoor unit be at the same level(height) or more as the indoor one?

    Thanks!

  15. Parool says:

    Hi Abhishek,

    I wanted to know, that what is the performance meter for Hitachi air conditioners in India?
    How about the services from them? Coz I can see a lot of bad reviews on net for Hitachi.

    On the other hand my mind was set on Hitachi AC’s coz of the difference in EER ratios.
    On comparing it to any other brands which states the EER as no more than the range from 3 to 5, Hitachi states it as 10 and above. So the difference is a lot.

    Hence, shall I go for Hitachi or not?

    • Abhishek Jain says:

      Hi Parool,

      Hitachi certainly has the highest EERs but it is wrong to compare the numbers that show in range of 10 to those in between 3 and 5. Energy Efficiency of Air conditioners is mentioned in EER as well as COP and they are used so interchangeably that it gets confusing at times. Unit for COP is Watts/Watts (or W/W) and this value typically ranges between 2 and 4 for all ACs in India. EER is in BTU/Watt.hr and it is 3.41 times COP value and ranges between 6.82 and 13.64 for all ACs in India. Whenever you are comparing 2 ACs and for one you see a value between 2 and 4, and for other you see a value between 7 and 13, simply divide the bigger value by 3.41 or multiply the smaller value by 3.41.

      Now we have also heard complaints about Hitachi service but we have also seen people specifically asking for Hitachi. So it is kind of mixed response. Hitachi as a brand is known for their quality, however we have heard complaints about their higher noise levels too. Some people had good experience with Hitachi and want to purchase it again, while some complain. So if you do not have any personal experience with the brand or not know someone in your area who has had good experience with the brand, then going for other brands would be safer. However if you know some people in your area who had good experience with the brand, you can certainly go for hitachi. Because if their service in your area is good, it can work very well.

      • Parool says:

        Thanks Abhishek for the reply.

        This blog seems really informative and hence helps a lot in taking an informed decision.

        Well, with your suggestion, I have asked a few people nearby who said “nothing like Hitachi. Go ahead.”
        So i guess I will go for it then.

        Any suggestions for the stabiliser? the voltage fluctuation at this place is very high. At few times, it is said to be around 90, i heard. So, what brand and what type of stabilizer would you suggest and what would be the price range?

        • Abhishek Jain says:

          Hi Parool,

          I am glad that you were able to decide and found the website useful. 90V is too low a voltage and if it really goes that low, you should complain about it to your utility. It will be hard for any stabilizer to step up the voltage from 90V to the desired voltage level. One brand that I have used and which has very big input voltage range is Blue Bird (http://www.bluebirdstabilizer.com/voltage_stabilizer.html). It has specs to handle 115-270 V input. But even the output is 195-245 which means at 115 V input it will scale it up to 195V output. There are some voltage stabilizers that can handle 90V input. Some of them are there on these links:

          http://www.snapdeal.com/product/staar-automatic-voltage-stabilizer-90/1353189
          http://www.stylexindia.com/prod_stab_mainline.htm
          http://www.bpower.in/main-line-voltage-stabilizer.htm
          http://www.desta.in/automatic-voltage-stabilizers.htm

          But I am not sure about the quality of these stabilizers. They may be good but I have no experience with them to vouch for their quality.

    • ravi says:

      very true what abhishek told u … i have purchased ac from one of my relatives shop and even he said that their service is a problem last couple of years ….he told me to go for o general if i can afford it but its very sensitive to fluctuations thats only thing due to which some cases of problem arised with his customers … second was mistibushi heavy industries as their serivces are getting better and that only thing it was lacking its in mid range but the copper wire cost will be additional bz none imported sets provided with copper wire and third is lg to fit the pocket and if u are basically looking for service they r the best .. hoped i helped with ur question thats the data i did confirmed with some others too b4 purchasing hope it helps others too …..

      regards

  16. vishal mehta says:

    I have LG 1.5 3 star window ac.
    7.4 A / 1610whatt .

    But it consume 8.9 amp. One hour use consume 1.5unit. Is it ok or proble in machine.
    Also gril temp. Is13.5. Pls guide me isit ok . Ac is only 10days old.

    • Abhishek Jain says:

      What temperature are you keeping the AC at? Is there direct sunlight on the AC? Are you getting low voltage in your area?

      • visahl mehta says:

        i keeping ac in 26c. no direct sunlight on ac. … voltage 220 to 240 ..

        • Abhishek Jain says:

          You should complain this to LG as instead of 1610 watts, at 8.9 amp it is taking almost 1920 watts. In fact this should also go to BEE so that it’s star rating is re-validated.

        • Abhishek Jain says:

          Can you give me your model number?

          • visahl mehta says:

            my model no. lg LWA5CS3F

          • Abhishek Jain says:

            Thanks. Do register a complain with LG.

          • visahl mehta says:

            lg told me 1 amp. ka variation rahega. aur vo log hero honda ki avrage ka example dete he.
            my voltage is 220 to 240.
            what can i do. sir pls guide me.

            amp. 8 consuption to raheta hi he.

          • Abhishek Jain says:

            Hi Vishal,

            1 amp variation is variation of 200 watts!! It can change BEE rating by 2 levels!! There is process in BEE to challenge star rating and in fact a few samsung, panasonic and godrej models were stripped of their star rating a few days back. So I guess if it is not possible to return the AC then the solution is to go to BEE and challenge the rating or go to consumer forum.

  17. ravi says:

    hello abhishek,

    I have two rooms connected 12×14 foot and 7.5×12 foot , i want to cool both rooms . what tonnage ac i should go for. i house is in kanpur , it has 2 windows and in noon time direct sun rays come , and i am on the ground floor , I asked for suggestion and some people suggested me to go for lg 2 tonnes and some said if u can go in higher range go for o general as it will cool both room with less load on compressor for 1.5 tonnes ac . i am bit confused which brand will be good so that later on i dont have problem with maintanance, eleectricity or any other problem … kindly suggest which company ac to choose and what tonnage as per my requirement so that electricity is saved and after sales maintainance is less …. and ya also give the suggestion under saame condition if i just have to cool one room of size 12×14 foot instead of 2 rooms.

    regards

    • Abhishek Jain says:

      When you say ground floor, I assume that there are more floors on top of the room. And also I assumed that you do not have a sun facing west/south west wall. In that case you need about 2.5 tons of cooling if you want to cool both the rooms during peak summer day time. If the usage is only at night then 2 ton would be sufficient for both the rooms combined. 1.5 ton AC would be good if you want to use the AC only for 12×14 room (both during day and night). Smaller the AC lesser is the electricity consumption. And I must say even 1.5 ton O General AC will not be able to cool both the rooms together. You will have to go for 2 ton at least (assuming usage is mostly at night). If you can tell me the tonnage that you want to go for, I can suggest you some models.

      • ravi says:

        well i want 1.5 tonnes then . later if not satisfied then i will go for 1 tonne ac seperately for the small room . so suggest me which ac i should go which is best as far performance is concered …and after sales maintance and service. bz i was searching for o general review so i saw many people were complaining abt them abt their service and in their indian models there was some problem in their ac though i asked few shopkeepers and they suggested me o general if i can afford the price as its air flow range is best and in low raange they told me lg is good . though i wanna know ur opinion since i am confused which will be the best choices for the above criteria and i cant rely much on online reviews since many sites give negative reviews them selves to gain popularity ….

        regards

        • Abhishek Jain says:

          O General is a good brand for technology/reliability, however their ACs do not rank high in electricity consumption efficiency. However you can look at these models:

          Hitachi RAU518HUD
          Godrej GSC 18 FG 6 WNG or GSC 18 FG 6 ONG or GSC 18 FG 6 BNG
          Whirlpool 3D Cool Climate Control PLT V or 3D Cool Elite IV
          or any LG BEE 5 star rated model
          Mitsubishi MS-GK18VA

          • ravi says:

            well i asked some air conditioners shop they said if u goin for o general which is high range better go for mistabushi bz none of the customer who purchased mistabushi had no problem till now and every ac company almost uses mistubushi compressor .. is that truee abt compressor ? and will mistubushi be right choice for 1.5 tonnes as far cost of electricity and after sales service . so far i am considering abt mistubushi, lg, hitachi, and daikin … so give ur opinion … And if their is any draawback in mistubushi or above stated brand let me know so i can compare their pros and cons …..

            regards

          • Abhishek Jain says:

            Most top Japanese brands have their own compressors. Hitachi, Daikin, Mitsubishi have their own compressors. In fact many local brands just assemble the components purchased from these companies. As japanese companies make their own compressors, the designs are more stable as their components work well with each other. And thus their reliability is high as compared to local brands. However while buying AC you should also look at the efficiency of the compressor. Reliability is one aspect, efficiency is also important. Hitachi, Daikin have models that are extremely good in energy efficiency (at least the EER numbers show that). Mitsubishi also has a few models that rank high in efficiency. So I think you should give equal importance to both the factors and choose the right model (rather than focusing too much on the brand, after you have finalised top few brands).

  18. G Samant says:

    Hi abhishek,
    I shifted to a new house in delhi 4th floor, total floors are 6.
    I have 3 bd rooms all 14×12. A 28×12 living room and a 18×12 dining room.
    I have put blinds on my windows to avoid direct sunlight.
    Can you suggest a MULTI-split ac arrangement for me.
    I intend to use 3 indoor units in each bd room and 2-3 indoor units in my drawing dining as it longer in shape.
    Also any particular brand with good multi split arrangement.

    • Abhishek Jain says:

      Hi,

      14×12 rooms would need 1.5 tons cooling. 28×12 room would need 3 tons of cooling and 18×12 room would need 2 tons of cooling in Delhi (assuming the walls also do not get much direct heat from sun). You can look at Daikin or Sharp’s multi split inverter AC for your house. You can call their engineers for evaluation.

  19. Sandeep says:

    Hi Abhishek,

    First want to say thanks for running such a useful and informative website and doing a great service towards the good of society.

    Second my question, I am looking for an Windows AC for a room size of 17×14 in Delhi. This room doesn’t really get direct heat from any side and is on first floor of 8 storey building. There is no electrical appliance (excluding Fan and Light obviously) and just one double bed and an Almirah is there in room. And generally there would not be more than 3 person at anytime in the room.

    What would be the best model for AC you would suggest to me?

    Thanks in advance for your answer.

    • Abhishek Jain says:

      Hi Sandeep,

      I am glad that you found the information useful. For a 17×14 room in Delhi, the tonnage requirement would be about 2 ton (for a non sunny room). You can get 2 ton window ACs, but they would not be energy efficient. Best 2 ton window AC would be rated as BEE 2 star which is equivalent to BEE 1 star split AC. We typically do not recommend people to go for less than BEE 3 star split AC and 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.

      I would suggest you to reconsider going for Split AC.

  20. amit says:

    City is GURGAON.
    Br
    Amit

    • Abhishek Jain says:

      You need a 1.2 ton fixed speed AC or 1 ton inverter AC for your room. You can check these:

      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)

  21. AMIT says:

    Hi Abhishek, could you suggest the best option for an AC model for:
    12.5x10x10 feet room
    No direct exposure to sunlight from all 4 sides and top also.
    1 big steel almirah inside and 1 double bed
    No electrical appliances except an LED TV
    Since the room is at back side of house and surrounded from all 4 sides, we need to have a split AC, with compressor unit placement alteast 3 meters from main unit.

    Need an economical+durable+energy efficient model. Kindly suggest.

    br
    Amit

  22. Rahul says:

    Hi Abhishek,
    I am Rahul from Kolkata. I have two rooms 11′X11′ and 10′X14′. height(11′) for both. I want to buy an Split AC which have 2 outlets for these two rooms(May be it’s called multiSPLIT). Please suggest me the best energy saving one.

    • Abhishek Jain says:

      Hi Rahul,

      For room one: You need a 1.2 ton AC if there is no direct sunlight on west/south-west wall and on ceiling, and in general room is less sunny. Else if the west/south-west wall or ceiling get direct sunlight and there is good amount of sunlight from the windows, then you need about 1.5 ton AC. If you need 1.2 ton AC, you can also go for 1 ton inverter AC which will be quite energy saving. However in case of 1.5 ton AC, you will have to go for 1.3 ton inverter AC (of which there are only 2 models in market) or 1.5 ton inverter AC.

      For room 2: You need a 1.3 ton cooling if there is no direct sunlight on west/south-west wall and on ceiling, and in general room is less sunny (you can go for 1.2 ton if usage is mostly at night). Else if the west/south-west wall or ceiling get direct sunlight and there is good amount of sunlight from the windows, then you need about 1.7 ton cooling (or 1.5 ton if usage is mostly at night). If you need 1.3 ton AC, you can also go for 1.3 ton inverter AC which will be quite energy saving. However in case of 1.7 ton AC, you will have to go for 1.5 ton inverter AC.

      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.

      Let me know the size and type you need and I can suggest you some good models.

    • Abhishek Jain says:

      Forgot to add: A multisplit makes sense when you need 3 or more units. For two units, it is better to go for individual units.

  23. ajz says:

    hi..i want to know how much units an average 5 star 1.5 T split ac consume..?

  24. PROJJAL GHOSH says:

    I am Projjal. I asked you a question in the morning today. It is very important for me to know the answer very soon. Please reply to me today or tomorrow within 12 noon.

  25. Projjal Ghosh says:

    Hello Abhishek !
    I am Projjal from Kolkata.
    Please tell me some models of ac in Voltas, Blue Star, Carrier of 1 ton which draw current from 4 ampere to 4.5 ampere. My budget is Rs. 27000 to Rs. 33000.
    I want a quick reply from you.

    • Abhishek Jain says:

      You can look at:
      Bluestar 5HW12ZAWF or 5HW12ZARF or 5HW12SAF
      Carrier Superia 1 ton 5 star rated AC.

  26. Bhupendra Mhatre says:

    hi Abhishek,

    any updates on below?

  27. PROJJAL GHOSH says:

    Hi Abhishek!
    I am Projjal from Kolkata.
    Can my other electrical appliances be switch on such as fan and light when my ac is running in 10 ampere current meter? Whatever I know from my sources that a 1 ton ac will takes 4 to 4.5 ampere current. Please suggest me some models of 1 ton split ac which are ranging between Rs. 25000 to rs. 30000 and which consume current between 4 to 4.5 ampere. As you can see that lights are essential during night time, charging laptop, running refrigerator, micro oven, washing machine and computer are very needful appliances in our daily life along with an ac…….. So, please tell me which electrical appliances can be switched on during running an ac. is it essential to change a 10 ampere meter to 15 or 20 ampere meter when installing a 1 ton ac. I do not have any more ac in my home. this is the first one that i will buy. Will inverter technology be good or my requirements as they are energy saver? Suggest me which star rating ac should I buy.
    You did not reply me yesterday. Please respond to my questions soon. I expect this from you!

  28. rahul says:

    hi..
    I m rahul and i m leaving in delhi. i am on top floor (3rd).no construction above my floor. i am leaving in 1bhk flat .room size 12 x 12. 3 person in a room .one big shaft window is available in my room . my sealing roof is very heated because of sun light in a day. so which AC will best for me .and i will use 10 hours per day then how much electricity cost to pay month . can i used 4-5 year old AC also . please suggest me as soon as possible ..

    • Abhishek Jain says:

      You need a 1.5 ton AC for your room. In 10 hours it would consume approx 15 units. You can use a 4-5 year old AC but if it is inefficient, your electricity bills will be really high for 10 hours of use.

  29. sanjeev says:

    Hi Abhishek,
    i am sanjeev from Agra.I am planning to buy an AC of 1.5 T,either voltas or bluestar. kINDLY SUGGEST ME WHICH ONE TO BUY SPLIT OR WINDOW.I am in a private job and living on rent so i may get transferred in 2years or so.Further i am confused between 3 star and 5 star rating.My usage will not be more than 1000 hrs in the year.My budget is approx Rs 33000.

    • Abhishek Jain says:

      Hello Mr Sanjeev,

      Firstly I would need to know the size of your room to comment if 1.5T would be fine for you or not. Sizing will also depend if any of your walls/roof get direct sunlight or not. Your usage is high for which we typically recommend going for BEE 5 star rated split AC, but as your job is transferable and looking at your budget, I think you will have to go for BEE 5 star rated window AC (which would be equivalent in efficient to BEE 4 star rated split AC). In Window, Voltas has better BEE 5 star rated 1.5 ton models (and I doubt if BlueStar has any models in this category).

  30. PROJJAL GHOSH says:

    Hi Abhishek!
    Can my other electrical appliances be switch on such as fan and light when my ac is running in 10 ampere current meter? Whatever I know from my sources that a 1 ton ac will takes 4 to 4.5 ampere current. Please suggest me some models of 1 ton split ac which are ranging between Rs. 25000 to rs. 30000 and which consume current between 4 to 4.5 ampere. As you can see that lights are essential during night time, charging laptop, running refrigerator and computer are very needful appliances in our daily life along with an ac…….. So, please tell me which electrical appliances can be switched on during running an ac. is it essential to change a 10 ampere meter to 15 or 20 ampere meter when installing a 1 ton ac. I do not have any more ac in my home. this is the first one that i will buy. Will inverter technology be good or my requirements as they are energy saver? Suggest me which star rating ac should I buy.

    • Abhishek Jain says:

      Hi Projjal,

      A fan or light will not get impacted with 10 ampere current drawn by an appliance. All appliances get same voltage and the current drawn depends on their wattage (and power factor). Now the formula is like this:

      watts = (power factor) * voltage * current.

      Typically power factor for air conditioners should not be less than 0.9. Also let’s consider that your voltage is 220 V. Then if we look at the watts for 4.5 ampere:

      0.9 * 220 * 4.5 = 891 watts

      Considering 230V:

      0.9 * 230 * 4.5 = 931 watts.

      Now most 0.75 ton inverter AC would fit in this range. A few high efficiency 1 ton inverter tech or BEE 5 star rated AC would fit in this. However you will not get 1 ton inverter or BEE 5 star rated AC in your budget.

      You may get 0.75 ton inverter tech AC in your budget. But if it will work for your or not will depend on the size of your room, city, and if your walls/ceiling get direct sunlight or not.

  31. Moin says:

    Hi Sir

    I have purchased carrier 1.5 ton split ac 5 star superia model . it is in transit iam little confused that I made right decision or not carrier split ac is worth buying .Need your opinion. Thanks

    • Abhishek Jain says:

      Hello Mr Moin,

      I will be able to comment only when I know the size of your room, city where you are in, if you get direct sunlight on your walls/roof (of the room), what is your usage of AC in hrs/day and months/year. Carrier in general is a good brand.

  32. Projjal Ghosh says:

    Hi Abhishek !
    I am from Kolkata, West Bengal. Will a 1 ton ac work with 10 ampere meter current or 20 ampere meter current? I am confused with it. Please tell me soon.

    • Abhishek Jain says:

      1 ton AC will work on 10 ampere current. For 1.5 ton you may need anywhere between 12 to 15 ampere.

  33. hitesh says:

    Dear Abhishek,

    Pls suggest which AC should i buy for the below mentioned specifications:

    Room Size: 10″ 12″ feet ; Hight: 11 feet Ground Floor
    City: bhilai(chattisgarh),
    Window: 2 ( 1 full size is open another room and 1 small windo open in outside….no direct sun rays on any wall and roof
    Door: Only 1 for entrance
    People: 2-3
    Consumption: 2 Hours in day time and 6 hours in night for summers
    Items in room: 1 CFL, 1 Bed, 1 TV, 1 Laptop, 1 Almirah, 1 table and a chair

    Kindly suggest what star rating should be preferred …5 star or invertor tech and which should be preferred with above specifications (window or split) and with which tonnage. Also suggest which co. AC should be preferred in my case.

    Thanks & Regards, hitesh

    • Abhishek Jain says:

      Hello Mr Hitesh,

      You need a 1.2 ton AC for your room. Tariffs are quite less in Chattisgarh and your usage is only in summers, so even BEE 3 star rated AC would be good. However most 1.2 ton ACs available in market are BEE 5 star rated and you will have to go for 1.5 ton if you want to go for BEE 3 star rated AC. From a price perspective, both would be almost the same (BEE 3 star 1.5 ton and BEE 5 star 1.2 ton). In fact you can also go for 1 ton inverter tech AC for the room which again would cost the same and would be more energy efficient. You can look at these models:

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

      1 ton inverter tech AC:
      Daikin FTKM35PRV16 or FTKP35PRV16
      Sharp AH-XP13LV, AH-XP13PHT, AH-XP13PMT, AH-X13PET
      Samsung AR12HV5NBWK or AR12HV5DAWK
      Panasonic CS-S12PKYP Econavi

  34. shubham says:

    Hi Abhishek
    Ihave rectangular room of 6m length n 4m broad with one window n door having a fan, light, computer.The room is on ground floor completely enclosed.How much ton and which split ac would u prefer for west delhi.

    • Abhishek Jain says:

      Hi Shubham,

      You need a 2 ton AC for your room. The choice of BEE 5 star, inverter or BEE 3 star will depend on your usage of AC. What is your usage of AC in hours/day and months/year?

  35. Nishant says:

    How can you say that an undersized aircon will have to be run at a lower thermostat setting of 18-20 in comparison to a larger compressor aircon? Thermostat will cut of according to temperature right? If the temperature of the room hasn’t reached 25 it won’t cut off. Why should I set it at 18 if I want my room temperature to be 25 even if my aircon is undersized?

    • Abhishek Jain says:

      Hi Nishant,

      Thanks for the correction. In fact an undersized AC will not cool effectively at all and the compressor will keep running all the time whatever temperature you keep it at.

  36. Gag uk says:

    Hi Abishek

    How much unit will a split having 3 stars consume in one hour .(whirlpool 3 star )

    • Abhishek Jain says:

      What tonnage AC is it? and How much temperature do you keep it at? And which city is this for? Please note that there are several factors that impact consumption of electricity in air conditioners: http://www.bijlibachao.com/air-conditioners/things-that-impact-electricity-consumption-in-air-conditioners.html

  37. Shampa Mondal says:

    Thank you very much, Abhishek. You cleared all my doubts. I will take your help sureably if needed in future.

  38. pragati says:

    Hi Abhishek
    I live in Lucknow.i want to buy an AC. My room size is 24×14 fts in dimension having 2 tubelight 2 fans, a LED TV and 2 beds.it’s a first floor east facing means exposed to sun directly in the morning.please advice what kind of ac window/split and tonnage should I go for.which is best ,effective and give more life and which brand should I buy…

    Regards
    Pragati

    • Abhishek Jain says:

      Hi Pragati,

      It’s a huge room. Would need about 3 tons of cooling. You won’t find a 3 ton AC in window options. Even in split, Panasonic CS-YC36PKY is the only 3 ton model and it will consume a lot of electricity. If you want local cooling near your bed, you can put a 1.5 or 2 ton AC right next to the beds, but that will not cool the whole room during peak summer day time. Let me know what tonnage you would want to put and I can suggest you some models accordingly.

  39. Shampa Mondal says:

    Which companies sell 1.3 ton Split Air Conditioner? I cannot fit a Window AC in my Bedroom.

  40. Shampa Mondal says:

    Thank you for your suggestion. But electrician speaks that 1 ton AC will can be installed in 10 ampere meter but more than 1 ton is not possible. Moreover, I do not want to change my meter as it is not my permanent address and a new meter will cost to more than Rs. 10000. Which air conditioners are highly inefficient? I must go for them only.

    • Abhishek Jain says:

      You should go for 1 ton inverter technology AC. They will be energy efficient as well as will take less current. And that is right a 1.5 ton AC would need more than 10 Amp current. You can look at any of these ACs:

      Daikin FTKM35PRV16 or FTKP35PRV16
      Hitachi ACE, iClean or Kampa 1 ton Inverter AC
      Sharp AH-XP13LV, AH-XP13PHT, AH-XP13PMT, AH-X13PET
      Samsung AR12HV5NBWK, AR12HV5DAWK
      Panasonic CS-S12PKYP Econavi
      LG BS-Q126B8R8 or BS-Q126B8A4

  41. Shampa Mondal says:

    Dear Abhishek, I have a rectangular bedroom of size 4.5 metres in length and 3 metres in breadth. There is a show case, a refrigerator, three chairs, one bed, one almirah and one tubelight with a bulb. I want to buy a 1 ton AC for this. My electricity meter capacity is 5 – 10 ampere. Can I install a 1 ton AC without increasing the meter capacity? I want just normal cooling and the room gets direct sunlight during summer months from west from afternoon to evening. But the room is not very hot.

    • Abhishek Jain says:

      Hi Shampa,

      1 ton AC should work with 10 amp current (unless it is highly inefficient AC). Although without knowing your city, I cannot tell you if 1 ton AC would be sufficient or not.

    • Abhishek Jain says:

      As per my calculation you may need 1.3 ton cooling on peak summer day time. But if your usage is mostly at night even 1 ton may do.

  42. b.k.pathak says:

    You should but 1.5 ton window Ac and not split.

  43. Rohit says:

    Hi Abhishek,

    I live in Patiala , Punjab and my room is on first floor (no construction above it) size is 15X11X10 . It includes 1 cupboard fitting size 11X3X7 , 1 TV , 1 Double Bed , 1 window in size 4X4

    I want to buy 0.75 tonn window AC as it energy saver.

    Please suggest me whether i should go for 0.75 tonn or 1 tonn also for Split or window ?

    Note : No need of chilled cooling , only normal cooling is requiered.

    Regards

    Rohit Singla

  44. kapila says:

    Dear Abhishek,

    Pls suggest which AC should i buy for the below mentioned specifications:

    Room Size: 10″ 12″ feet ; Hight: 11 or 12 feet Ground Floor
    City: Rohtak (Haryana), i.e. near delhi
    Window: Nil….no direct sun rays on any wall and roof
    Door: Only 1 for entrance
    People: 2-3
    Consumption: 2 Hours in day time and 3-4 hours in night for summers
    Items in room: 2 CFL, 1 Bed, 1 TV, 1 Laptop, 1 Almirah, 1 table and a chair

    Kindly suggest what star rating should be preferred …5 star or invertor tech and which should be preferred with above specifications (window or split) and with which tonnage. We owned own house so no movements will be there. Also suggest which co. AC should be preferred in my case.

    Thanks & Regards,
    Kapila

    • Abhishek Jain says:

      Hi Kapila,

      You need 1.2 ton AC for your room. Your usage is not high so inverter tech may not justify. You can look at these models:

      Hitachi RAU514IUD or RAU514EUDA
      Whirlpool 3D Cool Platinum V or Magicool Platinum V

      It is better to go split AC as there are more energy efficient options in it.

      • Kapila says:

        Hi! Abhishek,
        Thank you very much for your quick response.
        Kindly suggest some options in window AC as well for my room specifications mentioned above. It can be installed up above the door of the entrance.

        B Regards,
        Kapila

  45. kausik says:

    in which ac’s the maintenance cost is low and easy to handle.

    • Abhishek Jain says:

      All ACs that are good on reliability/technology should have low maintenance required (that does not mean AMCs are cheap). Most Japanese brands are good on technology/reliability.

    • BKPathak says:

      Locally assembled with Recip. compressor.

  46. Bhupendra Mhatre says:

    Hi Abhishek,

    I am leaving in Mumbai. There are 2 floors above the room. Usage is around 8-9 months in a year and mostly 2-4 hrs in night and 1-2 hrs in the afternoon.

    Budget is around 35-40k.

    Appreciate your prompt reply.
    Thanks

    Bhupendra

    • Abhishek Jain says:

      You need a 1.5 ton AC for your room. You can look at these models:

      Hitachi RAU518HUDD
      Godrej GSC 18 FG 7 OMG
      Whirlpool 3D Cool Climate Control PLT V(1.5 T)
      LG LSA5SP5M, LSA5PW5M, LSA5NP5F, LSA5ES5M (or any of LG BEE 5 star rated AC)
      Mitsubishi MS-GK18VA

    • Riship says:

      Dear Abhishek,

      My self Riship from Amritsar as I am looking to purchase an AC for my 12 x 14 bed room set. Occupancy 3 persons, led, almirah, laptop. I want Best Quality & Best Service Provider in this industry.More Information about room its 3 side open & full graced with sun shine there is no house in sides & back , i lives on first floor & my land lord has window ac just below my room through their lobby , that also heats my room . Pls. clear my doubts as earliest .

      • Abhishek Jain says:

        You need 2 ton AC for your room. You can look at these models:

        Hitachi RAU524IUD or RAU524HUD or RAU524ITD
        Mitsubishi Electric MS-GK24VA
        Voltas 245 DY
        Bluestar 5HW24MA

  47. BL Nagarwal says:

    Hi. Kindly advise, I have two inter connected room of size 10×11 feet with 9 ft height at ground floor. One window for exhaust fan. No direct son rays comes to our walls, only upto before noon rays comes to our room.
    You may kindly advise which size capacity of ac should I buy? Also window or split ac? Pl. suggest some brand or model no also.
    Regards
    BL Nagarwal
    Delhi

    • Abhishek Jain says:

      Hello Mr Nagarwal,

      Each 10×11 area needs one ton AC, or you can go for one 2 ton AC. If it is a place where you will stay for long, then I would suggest split. What will be your usage of AC in hrs/day and months/year? Also what is your budget?

  48. Dinesh says:

    Hi. I am Dinesh living in Mumbai and want to install ac in my 9×22 ft room with a window facing west. My room is a single room with a kitchen but can be partitioned also. My usage will be aroung 3 hours in the night. So which ac will be recommended? Further, if I dont install partition then what capacity I require? Also request you to suggest whether to go for inverter or normal. Thanks.

  49. Bhupendra Mhatre says:

    Hi Abhishek,

    I am planning to buy AC for 1 RK (i.e. 1 room kitchen) (220 Sq feet) ground floor and hight is approx 9 feet. I am leaving near to Seashore. Usage would be mostly in Night. Please guide me to select good brand of AC with good after sale service.

    Thanks

    Bhupendra

    • Abhishek Jain says:

      Which city is this for? Are there floors above the room? How many months in a year would you use it? Usage is 8 hrs every night?

  50. Ajay says:

    Hi I want to install an ac in a room sized 10×12×10. With one window facing west window size 4×4. Please suggest a proper ac with respect to tonnage. And what is the electricity consumption difference in 5 star ac and inverter ac

  51. mohit says:

    Which ac is better in 1.5 ton split or window?

  52. hamdaan kureshi says:

    Hello sir I am from bharuch and my room size is 200 sqft on top floor in the room 1
    Wardrobe size is 7*6*2 and I am use only in summer night so which model iam buy
    What’s tonnage suitable for me

    • Abhishek Jain says:

      Hello Mr Kureshi,

      You need 2 ton AC for your room. If usage is mostly at night then even 1.75 ton may do (but there are very few models of that size).

      Hope this helps.

      Regards,
      Abhishek

  53. sudeep says:

    I need to install split ac on my room?
    I have 1 KV electric connection. Is it possible install 1.5 ton split ac without increasing load to electric meter. or i just need to change wiring

    please advice me because i know this type of problem is very common in India specially in medium family

    • Abhishek Jain says:

      You don’t need to change your wiring. You should just request your electricity distribution company to increase the connected load.

      Regards,
      Abhishek

    • sudeep[ says:

      Thanks for the reply.i have checked my electric connection its not a 1kv,its a 2kv electric connection . I have lcd,fridge and cfl light and fans also, can i run all these aplliances on my meter 2kv. if not so which appliance can use with ac.plz advice on this.

      • Abhishek Jain says:

        Hi Sudeep,

        1.5 ton AC would be about 1700 watts, LCD would be about 100 watts, Fridge would be another 300-400 watts, Each Fan will be 75+ watts, CFLs etc will be some more. So you are surely exceeding 2 KV.

        Regards,
        Abhishek

        • sudeep says:

          Thanks Abhishek for the prompt reply.so can i use 1 ton spilit ac on my current meter Load.Can i run all of these appliance or which appliance can use with 1 ton ac

          • Abhishek Jain says:

            you should get your connecting increased to 3 or 4 kV and you will be able to run whatever you want.

        • sudeep says:

          If i will change my meter on 3 kv so can i use 1.5 ton ac with all of these appliance.or Fridge,LCD,CFL

  54. Gurpreet Singh says:

    Hi Abhishek

    I want to buy an AC in South Delhi and my room is 10.8 X 11.25 fts in dimensions and its a third floor east facing means exposed to sun directly in the morning. I am on rental flat so local vendors have suggested me window ac instead of Split because of Installation expense and also when it is removed for shifting if not done properly can lead to leakage of gas hence more expense added. I have been suggested Hitachi or Carrier as for long run as said by vendor are copper wired internally so which will you suggest in terms of energy saver as well as inbuilt quality and services and if you have any other brand option that suits best in my requirements please let me know . What tonnage and star rating will go for me according to my room dimensions and weather conditions and i will be using it for night mostly somewhere around 3-5 hours in summers.

    Thanks
    Gurpreet

    • Abhishek Jain says:

      Hello Mr Singh,

      You need 1.2 tons of cooling for your room. If you move frequently then window AC is better. You can look at these models:

      Whirlpool Magicool Platinum V Window AC
      Hitachi RAV513ERD or RAV513ESD (1.1 ton window AC).

      If your usage is mostly at night then you can even go for 1 ton AC. Hitachi has some highly energy efficient one ton models like the Kaze Plus series. So you can go for Hitachi 1 ton.

      Please avoid taking 1.5 ton AC as it will be oversized and will increase electricity consumption.

      Hope this helps.

      Regards,
      Abhishek

  55. Sunil Kumar says:

    Hi Abhishek,

    I want to buy an AC here in kolkata for my room sized 14 by 12 at ground floor in a two storeyed building. Height of the room is around 10 ft. It has four windows with glass panes, two each in south and west side and I use heavy curtains over them. My room houses one tubelight and one television aswell. So shall I go with an AC of 1 ton or 1.5 ton capacity ? I checked different posts but some are recommending 1 ton whereas others go with 1.5 ton capacity, so am a bit confused with this.

    • Abhishek Jain says:

      Hello Mr Sunil,

      You need 1.4 tons of cooling in your room. So you will have to go for 1.5 tons.

      Hope this helps.

      Regards,
      Abhishek

  56. Menaka says:

    Thanks. Really appreciate your prompt reply.

  57. dinesh says:

    hi am dinesh from raipur,,,,,,need a window ac for my 80sqft bedroom kindly suggest what should be the capacity of the ac i mean 1 ton witl do??or else

  58. Menaka says:

    Hi, I request some guidance on an AC for my bedroom. It is about 10ft X 13ft, is on the 2nd floor with 2 floors above it, has a small west facing window, no other appliances, and a balcony alongside where I keep my plants. Sound is also a consideration. I live in Delhi. Would really like to bring down my electricity bills. Should I invest in an inverter AC? After sales service should also be prompt and reliable (I have not had a good experience with my existing ACs in this regard). Which company would you recommend?
    Looking forward to your reply.
    Menaka

    • Abhishek Jain says:

      You can go for any of the 1 ton inverter ACs. LG, Voltas, Samsung have good service network. You can go for anyone of them.

      Hope this helps.

      Regards,
      Abhishek

  59. indrajit says:

    What tonnage split inverter ac should I take for a 130 q ft room on 13th floor (not top floor), no direct sunlight. how is Hitachi 1.1 tonn inverter split ac

  60. naren says:

    i want an ac for a small room which one should i go for ?? windowed or split?i may have to shift my residence too so
    which is best, effective and gives more life? and which brand should i buy?

    • Abhishek Jain says:

      Hi Naren,

      If you shift frequently then window AC will be easier to move. But please note that you will not get inverter tech AC (which is the most energy efficient AC) in window models, also energy efficiency of window models is 1 level lower than split models (so BEE 5 star window AC is equivalent to BEE 4 star Split AC). As for the brands, I would say Hitachi has the most energy efficient window models and is great on quality as well. You can also look at Carrier which is good too.

      Hope this helps.

      Regards,
      Abhishek

  61. Dr Piyush says:

    I want to take 1.0 ton ac. But I am confused which one I should go for 3 stat, 5 star or Invetrer AC?

    I am living in Pune. 6 th Flor Flat & one more Floor above. Room Size 3m length X 4 m width & 10 feet Height. East facing window & 15 feet wondow with one door. I thinmk i should go gor 0.8 or 1.0 ton? Please guide.

    My usage is very low. 6-8 hour usage for Four month in Year.
    Considering 10 years life of AC, is it really worth going for 5 star/Inveter AC?

    If yes, if you can explain with some figures will be great. I want to understand how I can recover initial extra cost of purchasing 5 star/Inverter Ac as per my usage explained.

    If you can help I don’t mind to go for Inverter AC purchase.

    I want to take AC in this week. Please help.

    • Abhishek Jain says:

      Hello Dr Piyush,

      If you go for fixed speed AC then you need 1 ton AC, else you can even work with 0.8 ton inverter AC.

      To give you calculations, 1 ton BEE 3 star AC would consume about 0.8 units in an hour (depending on multiple factors). Your yearly usage is for 960 hrs. So about 768 units in a year. If you are between 300-500 units slab in maharashtra, cost per unit of electricity is Rs 8+. So yearly cost of electricity becomes Rs 6144. If you go for BEE 5 star 1 ton AC then you save about 15% or about Rs 920 per year. If you go for inverter tech, you would save 30-40% per year, so roughly about Rs 2000 per year. Average life of AC is 10-12 years.

      A BEE 3 star split AC from a decent brand would not cost less than Rs 25-26K. And inverter tech AC from a good brand start from about Rs 30K. So your payback for the extra money that you pay can be as low as 2 years for inverter tech AC.

      Hope this helps.

      Regards,
      Abhishek

  62. Nisha says:

    Hi Abhishek,

    I am planning to buy split ac for a 190 square feet room. Im residing in Coimbatore, My room has two windows and it is not facing the sun. My usage will be 4 hours a day. I would like to buy an ac which doesnt significantly blow up my electricity bill. I am told LG and Samsung will create noise after 2 years. One of the dealers suggested Haier and told it has a very longlasting compressor and doesnt give many complaints. Please advise.

    Warm Regads,
    Bubbly

    • Abhishek Jain says:

      Hi Nisha,

      Your room will need anywhere between 1.45 ton (if the room is lower floor, less sunny and the walls do not get too hot) to about 1.75 ton (if the room is top floor, or very sunny, or the walls get too hot). Your usage of AC is less (I am assuming that you will use it only in summers), so going for BEE 3 star AC sounds good. Now the tonnage I mentioned above will be for peak summer day and for the use during day time. If your usage is mostly at night, then the tonnage requirement will be lesser (however while sizing mostly the peak summer day is used). Also even if your room gets too hot, I would suggest going for 1.8 ton AC rather than a 2 ton AC. Also please note that a 1.5 ton inverter tech AC can cover a tonnage range of 0.3 to 1.75 tons, and it costs about Rs 40-45K. So just in case if you go for a 1.8 ton AC, do try to see if you can get 1.5 ton inverter tech for the same cost.

      As for the brands, dealers suggest brands for which they have inventory or good margins. If you want to go for one with good technology, then we recommend going for any of the japanese brands (Hitachi, Mitsubishi, Panasonic, General, Daikin, Sharp) or Carrier or Bluestar. LG and Samsung have a larger service network.

      Hope this helps.

      Regards,
      Abhishek

  63. Manish says:

    I want one split ac to be used for two bed rooms
    Is it available in market ?

    • Abhishek Jain says:

      There are portable ACs in the market, but not a split AC that can be used in two rooms. Or you can go for multi split which has one outdoor and 2 indoor units.

      Regards,
      Abhishek

  64. vamshi says:

    Which a.c cools fast window or split

    • Abhishek Jain says:

      Depends on the cooling capacity or tonnage of AC. It is not dependent on window or split.

      Regards,
      Abhishek

    • snowcool411 says:

      window ac’s cooling is faster than split ac

      • Abhishek Jain says:

        Not necessary. It depends on the cooling capacity of the AC. If cooling capacity is the same then rate of cooling will be the same.

        Regards,
        Abhishek

  65. Abhishek Jain says:

    Hi Amit,

    I think I already replied to you on this:

    “6 meter pipe should not be a big problem. Although you need to analyze how much the kitchen heats up your room. Having said that 1.1 ton inverter tech sounds good for your room in most cases unless the kitchen heats up the wall a lot. Also if your use is more at night then the kitchen effect will be minimized.

    A 1.5 ton AC (fixed speed) will cool quickly, but if it is oversized then it will increase your electricity consumption significantly. If you go for 1.5 ton inverter tech, then it should work well in all cases (reason being that the inverter tech ACs adjust their tonnage as per the room’s need and a 1.5 ton inverter tech AC can cover form 0.3 to 1.75 ton range). So if you are thinking of going for 1.5 ton, I would recommend you to go for inverter tech. Sharp has some good models in 1.5 ton inverter tech as well and if you get a deal on them, then nothing like it.”

    Hope this helps.

    Regards,
    Abhishek

  66. Satya says:

    In continuation of my earlier query, please advise AC of which company I should go for ?

  67. Satya says:

    Sir, I hv a room size 18X14 having 3 CFL lights 2 fans and a LED TV 46″ with home theater. Please advise what kind of AC (Split / Window) and tonnage should i go for. Pls advise the difference between a 5 Star ac and an AC with inverter technology in terms of electricity effeciency.

    • Abhishek Jain says:

      Hi Satya,

      Firstly can you please let me know the city where you live in? The tonnage depends on climatic conditions and without knowing that it will not be possible for me to suggest the size. As for the difference between star ratings, each star rating represents a range of efficiency and with every increase in star rating, you can assume 7-14% efficiency improvement. The benefit of inverter tech is that it is has auto adjusting tonnage. So it can adjust to the needs of your room. Also the tonnage requirement depends on the heat load in the room and heat load is not always the same (it is low at night, high during the day… it is low in march high in may). So the best thing about Inverter Tech is that it automatically adjusts its tonnage. Ovsersized ACs are inefficient and consume more electricity, so suppose requirement of your room right now is 1.2 ton and if you are running a 1.5 ton AC, then it is inefficient (even if it is a BEE 5 star rated 1.5 ton AC). Earlier there were only fixed speed ACs available, so you did not have an option of auto adjusting AC.

      Now how much electricity efficiency can inverter tech provide? If you compare a right sized BEE 5 star fixed speed AC and right sized inverter tech AC, just because of changing climatic conditions, it provides at least 20% savings. But if suppose your room’s requirement is 1.2 ton and you put a 1.5 ton AC, then 1.5 ton inverter tech will automatically scale down to 1.2 ton whereas fixed speed 1.5 ton inverter AC will run at 1.5 ton and thus savings will be much more higher in 1.5 ton inverter tech AC (up to 40-50%). So savings truly depend on how you size your AC.

      You have also asked a question on brands. Frankly every brand has pros and cons, so we do not recommend any specific brand. But purely from Technology/reliability point of view (not from post sales service perspective), we recommend going for a Japanese brand (Hitachi, General, Panasonic, Daikin, Sharp) + Carrier + Bluestar. From post sales service point of view, the likes of LG and Samsung have a large network for post sales service.

      Hope this helps.

      Regards,
      Abhishek

  68. nikhilesh chaturvedi says:

    Hi Abhishek,
    i wanna buy an a.c which a.c should i buy split or window…. Room size is 10X 12… I live in Bikaner (Rajasthan)…

    • Abhishek Jain says:

      Hi Nikhilesh,

      Your requirement would be between 1 and 1.1 ton of air conditioning. If you live in your own house or do not move locations frequently, then I would suggest you to go for Split AC. Else you can go for window AC.

      Hope this helps.

      Regards,
      Abhishek

      • nikhilesh says:

        Of which company i should buy…

        • Abhishek Jain says:

          Hi Nikhilesh,

          We typically do no recommend any Brand as everyone has different experience with different brands and we do not capture brand level feedback from people. But here is a post on our website that help you provide some pointers: http://www.bijlibachao.com/air-conditioners/tips-to-choose-the-best-brand-airconditioner.html.

          But in general Japanese brands (Hitachi, Daikin, Panasonic, General, Mitsubishi, Sharp) and other brands like (Carrier, Bluestar) are good on technology/reliability (but this comment is limited to reliability and not on post sales service which differs from brand to brand).

          Hope this helps.

          Regards,
          Abhishek

  69. saurabh kabra says:

    Hello Sir,
    I want to buy a 1.5 ton ac.But i am confused with star ratings as people say they hardly matter.
    Secondly, what is the difference between split and window ac on basis of performance and features.
    Please help in solving queries

    • Abhishek Jain says:

      Hello Saurabh,

      Here are a few things that should be considered while buying an 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.
      3) Brand: Some brands offer better reliability/technology and some have better service network. One has to factor in both.

      As far as your statement regarding star rating is concerned. They do matter, just that monetary benefit (capital cost vs electricity cost) depends on your usage of AC. As far as split and window are concerned, the standards for star rating is the same for both window and split, so you will find both window and split models with BEE 5 star rating. However split models offer extra scope for efficiency and thus you would find that some of the split models have higher efficiency than the best BEE 5 star rated window models. Although I feel that the biggest factor that should drive your decision between split and window should be your chance of moving from one location to another. If you keep switching homes frequently, then a window AC provides a lot of ease. Also for split you need to create opening in the wall, and at many rental places, that is not allowed.

      Hope this helps.

      Regards,
      Abhishek

  70. sudhir jain says:

    Room size 12*10sq ft and i am in east delhi.
    and any other option like window or split.

    • Abhishek Jain says:

      Hello Mr Jain,

      For 120 sq ft room in Delhi a 1 ton air conditioner would be sufficient. You can go for either split or window based on the setup you have. For Split you will have to put a hole in the walls, whereas for window you would not need to get all that done. You will get much more energy efficient options in Split than in Window (although a BEE 5 star rated Spilt will be more or less as good as BEE 5 star rated window AC). Depending on your usage you can choose star rating: if it is more than 1000 hours in a year and your electricity rate is about Rs 5 a unit, it is advisable to go for BEE 5 star rated AC. Else if your usage is low, you can go for a BEE 3 or 4 Star rated ACs as well.

      Hope this helps.

      Regards,
      Abhishek

  71. sudhir jain says:

    Dear sir Good Morning,i am looking ifb split ac model no IACS18BF5TP 1.5T 5 star rs 35,880/
    free stabliger, free instal, free brackets,
    so pls tell me best for me or not like maintenance electricity consume etc.

  72. Pranay Shah says:

    Thanks for the information.
    Room size : 85 ft2, 1 wall facing west, top floor, 1 bed, 1 cupboard, 3 person,
    what would the ton of AC which is should select?

    • Abhishek Jain says:

      Hello Mr Shah,

      Although we also need to know the city where a person lives to find out the right size, but 85 sq ft room is too small and I do not think you will need more than 0.75 tons of air conditioning for that.

      Regards,
      Abhishek

  73. air conditioning installation says:

    Great post,thanks for sharing with us…

  74. Vivek Singh says:

    Most of the people are too confused. Thanks for explaining the great difference between the two. I am using split ac and it seems to be perfect as per my need and requirement.

  75. air conditioning Rochester NY says:

    Informative post………

  76. Raunak says:

    Hello
    Extrmly confused btwn both the ac’s
    i hav a transferable job and get transferd evry 5-6 yrs
    The tonnage nd starr ratings i hav decided
    I knw window ac is quite economical
    But split is more efficient since it has two unit

    Wat wud u suggest for me
    One more thing wat is the cost range of intallation split ac

    • Abhishek Jain says:

      Hi Raunak,

      5-6 years is a long time. Life of an AC is about 12-15 years, so you may have to shift it only once or twice. But Split AC involves making a hole in the wall for installation. If it is permissible in your house to do so, then you can go for split as well. Also regarding efficiency I would say that there are several models in Window ACs that will be as efficient as a split AC.

      My recommendation to you would be to go for an efficient window AC.

      Regards,
      Abhishek

  77. nilanjan chakraborty says:

    Hii. if a 5 star AC have been used for 02 hours per day ..how many Electric charge may be paid for that ?

    • Abhishek Jain says:

      Nilanjan,

      It depends on a lot of things. The tonnage of AC, size of room, number of people and things in the room, orientation of the room, etc. You can check this link to get more information: http://www.bijlibachao.com/Air-Conditioners/things-that-impact-electricity-consumption-in-air-conditioners.html

      Regards,
      Abhishek

  78. SoGoodToBuy says:

    Window units are really cheap but not as efficient as a split. We would always recommend a mini-split air conditioner

  79. Emily Victor says:

    I think it is depended on you. Suppose you have a big house then you must install central AC otherwise do not need to use this. It is very difficult to say as a professional member. I just say you that when use small ac for small house and use big for big house. And only a professional member can exactly say which ac will be better for you.

  80. KANISHKA says:

    PLZ REFER ME A GOOD WINDOW A.C WITHIN 25K .ASAP.
    THANKS

  81. ⚡Ravi Dabbiroo ZYCE⚡ says:

    dear abhishek ..! couple of q’s at what height should the split ac be mounted (from the floor) in a room with ceiling height of 10 feet? total area of room 150 square feet… and will 1.2 tonn be good or should i go for 1.5 tonne for my room ?

    • Abhishek Jain says:

      Hi Ravi,

      The ideal height for installation of split air conditioner as recommended by most installation manuals is at least 2.3 m above the ground. It is ideal to install the AC in a direction that it covers the length of the room rather than the breadth. As for the tonnage, it depends on multiple factors. I guess the bluestar calculator link mentioned on this page is not working. You can try this one from LG: http://www.lg.com/in/support/ac-tonnage-calculator. It all depends on heat and humidity in your city as well as windows in your room.

      Regards,
      Abhishek

      • Aseem says:

        Hi Abhishek,

        Can you please comment on Vestar 1.5 Ton AC models. I am made to understand that the brand belongs to O General and hence should be good. Any comments from your side.

        Further please suggest the tonnage:
        Room : Drawing cum dining
        Size: 18′ x 10′
        Doors: 5 (entrance door, two balconies door, one kitchen door, one toilet door)
        Paint: 3 walls light, one dark
        Items: 5 seater sofa, 6′ (h) x 5′ (w) TV unit with showpieces all around, Dining table (six seater), 600 ltrs fridge
        People: 3-4 average (family size: 6)
        Hours: 5-6 daily
        Months: 4-5
        City: Noida
        Floor: I floor of 4 storey building
        Sunlight: from only one balcony (5′ ft) side, one 10′ ft side exposed to sun for 3-4 hours

        Please reply

        • Abhishek Jain says:

          Hi Aseem,

          You need 2 tons of cooling for your room. 1.5 ton may not be sufficient to cool the whole room effectively. It will just provide local cooling. Also having a fridge in the room increases load on the AC and thus it will consume more electricity. Any Japanese brand is good in technology/reliability. General is a japanese brand.

          Regards,
          Abhishek

          • Jagtar says:

            hi Abhishek,

            i am resident of Punjab (Ludhiana). my room is 14* 14ft in size. I have installed a 3 star Voltas split ac (1.5 ton) in that room. Initially the outdoor unit was lying East side on the ground which consumed 5/6 Amp. Recently, I have installed the outdoor unit in west facing balcony. The distance between indoor and outdoor has become longer than before due to west facing. Now it consumes 7-9 Amp. Around 1-3 pm the AC consumes 7 Ampere. After 3 pm when it faces direct sunlight it reaches up to 9 Ampere. I have the option of installing the outdoor unit in every direction. Could you tell me reason behind the large consumption of electricity of my Split Ac?
            Also, could the direction (east/west) be reason behind it?

          • Abhishek Jain says:

            Hi,

            Firstly I feel that 1.5 ton AC is small for your room. You need about 2 ton AC for your room. Secondly putting the outdoor unit in direct sun does decrease the efficiency of the AC. It is better to keep it on a side where it gets less of direct sunlight (or you can put plants, etc around it to get it some shade). The more the heat on it, more it has to work to give same output and thus the current drawn is more. The outdoor unit has a heat exchanger where it throws the heat (collected from the room) outside, but if the heat outside will be lot more, then it will take more energy to throw the heat outside.

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