Electricity Saving Tips For Homes And Offices

Understand What is ISEER and Star Labeling of Inverter Air Conditioners in India

By on April 22, 2016

A few years back when Inverter ACs were introduced in Indian markets, there was a lot of skepticism about their success in Indian conditions. Although they are quite successful and popular internationally, these ACs did have to go through the tests of Indian consumers. Despite some negative rumors by a section of the market, Inverter ACs have come out with flying colors and have become popular in India. One thing that everyone knows (and many have observed) is that Inverter ACs save “HUGE” amount of electricity. But one question has been there in everyone’s mind: Why is there no BEE star rating for Inverter ACs as available for fixed speed ACs? In the year 2015, BEE did provide answer to the question by starting a Star Rating labeling system for Inverter Air Conditioners. With this post, we will try to answer few questions that people have regarding the new Star Rating for Inverter Air Conditioners.

Why Did Inverter ACs Not Have Star Rating Earlier?

Although purpose of any air conditioner is to cool the space, the way cooling happens in fixed speed ACs is different from the way it happens in Inverter ACs. The technology is a bit different. Fixed Speed ACs have fixed cooling capacity (or tonnage) and fixed input wattage, Inverter ACs have varying cooling capacity and input wattage. The definition of efficiency for a fixed speed AC was quite simple:

EER (or COP) = Output Wattage (or cooling capacity) ÷ Input Wattage.

(EER Stands for Energy Efficiency Ratio & COP stands for Coefficient of Performance)

By calculating EER/COP of fixed speed ACs and defining fixed ranges, BEE was able to divide all the fixed speed models in the market in 5 groups of different star ratings. But this works well when there is fixed output wattage and fixed input wattage. But defining the same for Inverter AC was very difficult as both the input and output wattages vary.

What Will Be The Method To Define Star Rating Now?

World over the method of defining energy efficiency of air conditioners is not EER (Energy Efficiency Ratio), but it is SEER (or Seasonal Energy Efficiency Ratio). The basic theory behind SEER is that the temperature does not remain the same round the year. As there is seasonal variation of temperatures, there is variation in the amount of cooling required. Amount of energy (or electricity) required by an air conditioner to cool a room to 25 degrees (or any other standard temperature) is different when outside temperature is 30 degrees in comparison to when the temperature is 40 degrees. Also the usage (in hours per day) would vary as per the seasons.

SEER calculation thus involves defining annual temperature profile and usage patterns. SEER standards have to be different for different countries as every country has a different climate profile. And thus BEE has defined Indian SEER or ISEER in short. Let’s look at the various terminologies used as part of the definition:

  1. Cooling Seasonal Energy Consumption (CSEC) – Total annual amount of energy (electricity) consumed by the equipment when it is operated for cooling in active mode.
  2. Cooling Seasonal Total Load (CSTL) – Total annual amount of heat that is removed from the indoor air when the equipment is operated for cooling in active mode.
  3. Indian Seasonal Energy Efficiency Ratio (ISEER) – Ratio of the total annual amount of heat that the equipment can remove from the indoor air when operated for cooling in active mode to the total annual amount of energy consumed by the equipment during the same period.

To calculate the total annual electricity consumption the assumption used is that the Air Conditioner will be used for 1600 hrs through the year. Annual temperature profile used is based on weather profile for 54 cities across India. Below is the temperature distribution used:


The ISEER thus calculated will be used to provide star ratings to various models of air conditioners. Below are the defined ranges of ISEER for various star ratings:


What Information Will You Get From Manufacturers?

A lot of what is mentioned above is technical jargon. For an average consumer the most important thing to know is to understand the information provided by the manufacturers. Here are the things that will be available from the manufacturers:

  1. Rated Cooling Capacity (100% Load): This is the marketing tonnage or marketing cooling capacity. Inverter Air Conditioners have variable cooling capacity and a 1 ton inverter AC may vary its tonnage from 0.2 ton to 1.2 ton. But they are marketed as 1 ton inverter AC. Rated Cooling capacity for a 1 ton inverter AC would be 1 ton. As per BEE standards there is a tolerance of ± 5% for this value.
  2. Rated Cooling Capacity (50% Load): BEE has asked manufacturers to provide power consumption at 50% capacity. This is not the minimum cooling capacity, but the 50% of the total capacity. In case of 1 ton AC it would be 0.5 ton. But this does not mean that it cannot go below 0.5 ton.
  3. Maximum Cooling Capacity: This is the maximum cooling capacity. As in the example above of 1 ton, it would be 1.2 ton.
  4. Rated Power Input (100 % load): This is power consumption in watts when the AC runs at 100% load or at the marketing tonnage.
  5. Half Power Input (50 % load): This is power consumption in watts when the AC runs at 50% load or at the marketing tonnage.
  6. Maximum Power Input: This is power consumption in watts when the AC runs at the maximum tonnage that the Air Conditioner can achieve.
  7. Cooling Seasonal Energy Consumption (in kWh): This is the annual power consumption as measured per BEE standards mentioned above. Please note, that this number is for 1600 hrs and actual number for you will depend on your usage and temperature of your city when you use the AC.
  8. ISEER: This is the ratio of total heat removed and total energy consumed. This is the ideal number to compare two ACs as your usage of AC may vary and thus the electricity consumption may not be the same as the number mentioned in Cooling Seasonal Energy Consumption.

How Does Star Rating Of Inverter ACs Compare With That Of Fixed Speed ACs?

Comparing the Star Ratings of ACs across segments (window, split and Inverter) has been the biggest source of confusion for most consumers. Unfortunately the standards that have been defined do not help remove the same. The concept of ISEER can be used for fixed speed ACs as well, but from what we know as of now, it will not be used. The rating standards of fixed speed ACs will remain the same based on EER.

However from what we have seen, even a BEE 2 or 3 star rated inverter AC would be equivalent or better than BEE 5 star rated split AC of fixed speed type. And any inverter AC would be much better than any window AC.

Has BEE Started Rating New Inverter AC Models?

The new standards are voluntary till the end of 2017. Which means, manufacturers can sell AC models with or without star rating till end of 2017. As star ratings for ACs are quite popular amongst the masses, many manufacturers will try to get their models certified by BEE, but it is also possible that you may get models that are not rated. It will be beneficial for consumers if they start insisting on star rating and demanding manufacturers to sell only star rated ACs.

When Will BEE Make It Mandatory For All Inverter AC Models To Be Star Rated?

From the year 2018 onwards, all models of inverter ACs will have to be star rated. Manufacturers will not be able to sell non-star rated inverter ACs.


Star Rating labels for Inverter ACs is a welcome move by BEE. Inverter ACs have raised the bar for energy efficiency of air conditioners in India and labelling will further improve the efficiency. The future looks bright and soon air Conditioners will not be a big strain on electricity bills.

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Dear Abhishek, I live in Mumbai I need a AC for my 10X10 sq ft room no direct sunlight I have selected Electrolux 1 T 3 star Invereter AC ES12Q4I what is your opinion about this product,
Thanx in advance

Abhishek Jain (Mod)

Hello Mr Sunil,

Electrolux as a brand is quite decent. It is not premium but not too bad as well. You can certainly go for it.


Can you please tell me what is the Indian Standard introduced by BEE to calculate ISEER (equivalent to ISO 16358)? There doesn't seem to be any.

Abhishek Jain (Mod)

If you go to the website: https://www.beestarlabel.com/ .... at the bottom of the page you will get details of Voluntary and Mandatory schemes. The details of the same are mentioned over there.


Can anyone tell me how to check star rating for an old ac without sticker,model no and bill?

Abhishek Jain (Mod)

Star rating for ACs was introduced in 2007. So if your AC is older than that then it certainly will not have a star rating. The star ratings became mandatory in the year 2010. So if your AC was purchased between 2007 and 2010, then it is possible that it may not have a star rating. But if your AC was purchased after 2010 then it would surely have a star rating. You may get the information online using brand and model no.


Hi Abhishek,
I am considering LG's BSA12MAYD 4 star smart inverter AC. ISEER 4.2. Annul consumption for 1600 hours is shown as 648 units.
However, your list shows Godrej's GSC 12 FIXH 7 GGPG as the least power consuming with 474 units. Big difference.
With 1600 hours pa, it would take 4 years to make up the price difference.
It appears LG's service in Pune is better than that of Godrej.
Please help me decide.
Thanks in advance.

Abhishek Jain (Mod)

Hello Mr Dubal,

I guess you will have to take a call if you have calculated that the payback is in 4 years. Typically I assume 10 years in the life of an AC. And on top of purchase cost there will be AMC cost as well which is typically 1% of the purchase cost. If you calculation based on your usage is right then 4 years looks decent to me if life is 10 years.


Thanks Abhishek for your prompt response.
Does LG have bigger market share, market presence, availability, quality of service, customer satisfaction as compared to competition?
Also tell me how Godrej is able to achieve this number which the LG cannot. They have different technology?

Abhishek Jain (Mod)

Godrej uses R290 refrigerant which is highly energy efficient. No other brand currently uses R290. And that is how Godrej is able to achieve this number.

LG does have a bigger market share, market presence and larger service network. LG and Voltas are the leaders in market share in Air Conditioners.


What is authority of BEE to enforce star ratings to be labelled on inverter ACs? What's its scope and jurisdiction in world?

Abhishek Jain (Mod)

BEE or Bureau of Energy Efficiency in India is a Government of India body. It has been mandated to improve energy efficiency in India by Government. So for all practical purposes BEE is government when it comes to energy efficiency. And we the people of India have given government to make laws and policies.


Which brand of ac and which type of ac like 5 star or inverter ac mitsubishi diakin or Hitachi is best . Is inverter ac is good for my clinic?

Abhishek Jain (Mod)

MItsubishi, Hitachi, Daikin, General all are premium brands and have great air conditioners. Inverter ACs are great, good or not for your clinic depends on your usage of AC.


Long story short Higher the Isser number such as 5.8 the better it is. Am I right Abhishek? or am I wrong?

Abhishek Jain (Mod)

Higher the ISEER number, the most energy efficient it is. Better or not depends on multiple factors:

1) Your requirement: if your usage is less, then you do not always need the most efficient one. For e.g. if you need a car for just 1 kM travel daily, you need not spend a lot in the most fuel efficient car because you will not recover the costs. But yes it will be most fuel efficient. Similarly, model with ISEER of 5.8 will save the most electricity, but then will it be cost effective or not depends on your usage.

2) You also need to look at the brand, technology and durability. 5.8 ISEER is just the energy efficiency. It is like the mileage of a car. You cannot decide a purchase just on mileage.


Hi Abhishek,

Your blog is extremely cool like AC man. Keep up the good work bro.

I have a couple of practical questions.

1). I have 10X11X10 ft room in gnd floor, rarely exposed to Sunlight. The calculator in your blog says 1 ton AC is enough for me. For my town only LG, Bluestar and Voltas provide service. I plan to go for 1 ton LG 3 star inverter AC. But, I see 1.5 ton dual inverter of LG is costing just 3-5K rupees more. Is dual inverter tech better than inverter tech ? LG offers adjustable tonnage for 1.5 dual inverters. IS that enough reason for me to choose this one over 1 ton inverter AC of same brand ? What are the pros and cons of my choosing 1.5 dual inverter over 1 ton inverter for my room ?

2. According to the calculators, I don't see a difference of Rs 100-200 annually between 3 star inverter AC and 5 star non inverter AC for my requirement. Which one should I choose, and why ? Pros and cons of that decision ?

3. Can you share info about this copper coil thing everyone is talking about when it comes to ACs. Is it mandatory to have Copper over Al/Alloys ? Is it a matter of quality and maintenance of AC, electricity bill, or something related to cooling speed ? For a middle class person like me who loves to buy quality products but not at unnecessary extra money, what is your advice reg this Copper vs non-Copper stuff?

thanks in advance for you reply.


Abhishek Jain (Mod)

Hi Shravan,

Here is my response:

1) I would suggest you to stick to 1 ton inverter AC. I do not see a huge benefit of Dual Inverter over regular inverter technology. Based on feedback from people I would not suggest that you go for 1.5 ton AC because in non peak summer season when temperature is not high, the compressor of the AC may shut off due to really low load and that can make things a bit uncomfortable. I would suggest you to stick to 1 ton inverter AC.

2) There is not much difference in terms of energy efficiency in BEE 3 star inverter and BEE 5 star non inverter ACs. But then inverter ACs are good at consistently managing temperature (so they are more comfortable). So it is better to go for BEE 3 star inverter AC.

3) For copper and aluminium, let me copy some text that I use to reply most people having confusion about copper and aluminium:

There are two type of condensers: PFC and copper condenser. We have explained PFC and copper condenser in detail on FAQ no 13 on this page: .

You can get more details like pictures on that page. Here is the text from it:

a) PFC (Parallel Flow Condenser) or Multi Jet which is all aluminium. It is highly energy efficient (more than tube and fin condenser) but if it fails it need to be replaced. It can get damaged due to corrosion and thus needs good corrosion protection. Manufacturers specifically mention PFC or Multi Jet.PFC is a good technology from energy efficiency and costs point of view. And both copper and PFC will fail in case the environment is corrosive. It is just that copper ones can be repaired while PFC needs replacement. And because there is hassle and expense related to replacement (which only happens in case of corrosive environment), Aluminium has got some bad press. But it is not that aluminium fails always.

b) Coil and Fin type condenser, where coils are copper and fins are aluminium. Even in this the one with anti corrosion coating (also known as blue fin/gold fin) is better. Most brands have such type of condenser. You can ask the dealer to open the outdoor and indoor unit for you and you can check if it looks blue or not.

Please NOTE: Both copper and aluminium can corrode and in fact the coil and fin having two metals can corrode faster. The most important thing to look for is corrosion protection and not just copper or aluminium.

Also all depends on level of corrosion. If you live close to sea then corrosion is faster. I have personally used Aluminium ACs in Powai, Mumbai (about 6-7 kms away from sea) and never faced any corrosion issue. But people living on say worli seaface, Mumbai (right on the shore) always have direct winds from sea which can cause corrosion.



Hello sir !
I had gone through your website and learnt about best 1.5 Ton Inverter A.C.'s - like Diakin, Hitachi, Godrej, Bluestar with their respective model nos.
I myself was also going through LG-JS-Q18WTXD (Red Col.) Model with Mosquito Away technology. I want to know that how it happens/works or does it really works to keep away mosquitoes ?

And I also want to know that among these- LG-JS-Q18WTXD, DIAKIN - JTKM50, HITACHI - RSA518CAEA and GODREJ - GSC-18GIG 5 DGOG, which will be the best in terms of minimum electricity bill consumption (If run for avg. 8 hrs. a day) and also in terms of warranty and service facility in Kolkata ? As I am a middle class person I cannot afford to buy A.C. again very soon if something goes wrong . So please suggest me considering all sides. Thanks a lot. Best regards- K. Chakrbarty.

Abhishek Jain (Mod)

The mosquito away technology emits a sound wave which is not audible to humans but is very irritating for mosquitoes. There are several mosquito repellents available in market with such technology. The feedback on the same is not very exciting. It is not something that can make your room 100% mosquito proof.

As for the model, other than the LG model, you have selected the most energy efficient model in the market. The ROI of the AC depends on usage and if you go for most energy efficient models, the usage has to be really high to get ROI. For an average household (with 8 hrs of running in summers), a BEE 3 star rated inverter AC is good enough. What is your budget for this AC? I think Hitachi, Bluestar or LG BEE 3 star rated models would be really good for you. And then again I have not heard so good feedback about Hitachi service in Kolkata. So Bluestar or LG would be a great choice. Bluestar 3CNHW18TAFU or Bluestar 3CNHW18NAFU will be great. The LG model you have selected will also be good.


Pls. provide me the information of good quality split ac time to time



To add to my earlier question, i'm looking at a good ac that cools well is very energy efficient and VFM.
I'm looking at a purchase as of tomorrow to avail the discounts available.

Abhishek Jain (Mod)

You can look at these on Amazon as well. These have copper condenser:

LG JS-Q18SUXD (Amazon Link: http://amzn.to/2oMG2Le )
LG JS-Q18AUXA (Amazon Link: http://amzn.to/2oMjWqB )


Hi Abhishek,
I'm looking to buy Split Inverter ACs for following rooms -
1. 1375 cubic feet - not exposed to direct sun.
2. 1375 cubic feet - towards west.
3. 1225 cubic feet - not exposed to direct sun.

Question is what capacity and what best 2 options of ACs can i use? 3 star or 5 star? I live in Pune.

Abhishek Jain (Mod)

Hi Atul,

1 ton inverter AC would be good enough for all the three rooms. The only room that requires a bit more cooling is the 2nd room. But then that again needs 1.2 tons of cooling and 1 ton inverter AC would be fine. The choice of 3 or 5 star will depend on your usage (in hrs/year) and your budget. What will be the usage and what will be your budget for the ACs.


Why can't we ban electricity guzzling 1,2 star rated ACs by raising the minimum ISEER rating to 3.5?
The same thing should be done for fridges, fans and lighting, and vehicles.

We import most of our energy and are heavily dependent upon oil producing countries. Apart from this being expensive to the nation, almost of these Middle East oil producers are supporters of islamic terrorism. We are indirectly funding terrorism by giving these arab counties hundreds of billions of oil & gas money.

Abhishek Jain (Mod)

Good suggestion. However, based on my experience with BEE I know that they are aware of the issues. In fact there are no 1 star rated ACs in the market, very few 2 star rated. Actually speaking BEE 3 star non inverter ACs are the lowest efficiency models in the market. Once new star ratings kick in from 2018, BEE 3 star rated non inverter AC will be BEE 1 star rated ACs (some of them may move out from the market as well).


BEE should create a uniform ISEER for all ACs - to provide clarity to the consumer. And govt should create incentives for buying high efficiency goods by placing 4 and 5 star iseer rated ACs in a low GST bracket like 12% and keep 1-3 ISEER star rated ACs at 28%. Like LED bulbs program, govt can also provide a one-time GST waiver for replacing 10 year or older ACs with 4 or 5 star iseer rated ACs. It can be run as an exchange program through power ministry or utilities.

Abhishek Jain (Mod)

Uniform star rating for All ACs is happening next year (in 2018).

The LED bulb program (Ujala) was not a government of india program. It was a program by EESL (which is a PSU). And that also did not include tax waiver. In fact Ujala program was a bulk purchase program where EESL was able to sell LED bulbs for cheap because they procured in bulk (and the manufacturer was able to achieve economies of cost). If a manufacturer is able to make and sell 100 units the cost will be more, but then if he is able to make 10000 such units, the costs come down significantly. EESL did the same. They gave manufacturers order for bulk purchase and that is how they were able to bring down the costs.

You should see an EESL program for Inverter ACs soon.


Hi Abhishek
Is there any co-relation between the weight and/or volume of an air conditioner to its durability and energy efficiency? It would seem that if everything else remains equal then higher weight and/or higher volume would give either/both better durability and efficiency. This is corroborated by the the fact that for any particular manufacturer higher weight machines are priced higher and marked better in star rating.

Abhishek Jain (Mod)

Hi Neeraj,

I cannot confirm that because I have not observed the same.


Hi Abhishehk,

I want to ask which one is better GODREJ NXW [GSC 12 FIXH 7 GGPG] 5.8 ISEER OR LG DUAL INVERTER AC OR ANY OTHER, if by electricity bill ? AND anti-humidity ?
If my room is 180 sq.ft and outer temp. is 47'c in dry area.


then what about 1.5 ton or 2 ton

Abhishek Jain (Mod)

I would suggest that you use the calculator on this page to do the right tonnage calculation: https://www.bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html

Without all the parameters needed to calculate tonnage, it will be difficult for me to comment. But 1 ton would surely be small.

Abhishek Jain (Mod)

The godrej model would be better for electricity bill as the ISEER is highest. But 1 ton AC for 180 sq ft room in a city with temperature of 47 degrees does not sound right. It will always run at peak capacity and will not cool the room and will also not save any electricity.


Hey Abhishehk,

I have read your blog & it is very good, I am planning to buy air con & have a few questions as below.

1. I live in Mumbai & the air con needs to be installed in the house, where there is only one opening or one window & the house is 500 sq ft & the air con needs to be installed in the last room which means the main unit will be at the start & the copper pipe will be running around 400 sq ft to supply the cool air produced to the split unit.
2. The room area is 10*10 (100 sq ft).
3. I am planning to buy an inverter ac 1 ton 5 start & i have short listed Blue Star Blue Star BI-5CNHW12PAFU Split AC as per your recommendation on the blog.

1. Would the cooling get impacted as the air needs to flow around 500 sqft & will this increase the cost of Electricity.
2. Would a 1 ton suffise or should I go for a 1.5 ton.
3. What is DC invertor as I have heard a lot about it, many companies offering it.

I see this is more technical however need assistance.

Tx in advance.

Abhishek Jain (Mod)

Hello Mr Sunil,

I guess I did not understand your point clearly. Are you looking for 1 ton AC to cool 100 sq ft or the whole 500 sq ft? If you are looking to cool whole 500 sqt ft then the AC will not work.

The other situation that I can visualize is that your outdoor unit is too far away from your indoor unit and thus you need longer piping. However, in that case you need not look at 400 st ft, but total lenth of piping in feet or meters. Blue Star has long length flexibility, but still the total length of piping for 1 ton AC should not exceed 15 mtr and that of 1.5 ton AC should not exceed 20 mtr.

To answer your questions:

1) If the piping distance is long then certainly efficiency will reduce and thus 1.5 ton inverter AC would be better. But if length is less than 15 mts then you can even go for 1 ton inverter AC as in mumbai 1 ton is more than enough for 10x10 room.

2) 1 ton would be better but if length of piping is more (between 15-20 mts) then 1.5 ton would be better.

3) DC inverter and inverter is one and the same thing.


Hi Abhishekji.
I read all your comments and gain a lot. Really I am impressed.
I want to buy 1.5 ton 3 star inverter ac with good cooling capacity for my bedroom. As it is exposed to sunlight on west wall and there is no construction on roof. Also there is no proper ventilation also. My budget is 30K-40K. I have seen LG JSQ18ATXD (without mosquito) and Videocon VS4I54WV. Want to buy immediately as I am searching for 10 days. Which is better copper condenser or alloy ?? I am confused. Please suggest me.

Abhishek Jain (Mod)

Hi Vandit,

Firstly I cannot say if 1.5 ton would be sufficient for your room without knowing your city and other details. I would suggest that you use the calculator on this page to calculate the right size: https://www.bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html

Secondly, both aluminium and copper can corrode, what is important is corrosion protection. The other advantage of copper is that it can be repaired. Aluminium one needs to be changed if it corrodes. If you live in corrosive area (close to sea, lake, river or nalla or close to chemical factory), then I would suggest you to avoid Inverter AC itself. But if your area is not corrosive, then both alloy and copper would be good. Alloy provides more energy efficiency as compared to copper. But then copper is easier to manage in a corrosive area.

If you need 1.5 ton AC then LG Inverter AC model that you have selected would be a good choice.


Should I go for non inverter 1.5 ton 5 star ac also ?? Please suggest.


Dear Vandit,
You might have seen advertisements by Maruti "Kitna deti hai"....
As a buyer you must calculate all angles i.e, initial cost difference between normal 5 star AC and inverter AC, Your utilisation period (in hours), Tariff (per unit electricity charges) and life period of AC for you.

All these if properly calculated can drive you for right decision.


My bedroom size is 15' × 11'. Please suggest me.


Hi Abhishek,

Very Wonderful Article, can you pls suggest us the formula for Room Size Vs Tonnage of Split AC.

I would like to buy Inverter Split AC for my DR having Size of 170-180 Sq feet.

Also there is a misconception in mind for inverter AC that if the room door / any entry is open - Inverter AC will not work

Abhishek Jain (Mod)

Hi Gagan,

There are lot of parameters to calculate the right tonnage. You can use the calculator on this page to calculate the right size: https://www.bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html

Also as for inverter AC, their electricity consumption is higher at peak capacity and thus inverter ACs should not be undersized. And room with open door or open entry increases the heat load and thus inverter AC is not really energy efficient if the room is open or big.


I am thinking of getting this 1.5T 3 Star Kenstar split AC from Amazon, wondering what's your take on it.



Abhishek Jain (Mod)

Hi Amith,

Kenstar is a recent entrant in Air Conditioning segment (started just 3-4 years back) and earlier they were mostly in Air Coolers and other kitchen appliances. They started off with quite cheap models (mostly with aluminium condensers) and decent energy efficiency (BEE 5 star non inverter but then those models just barely qualified for BEE 5 star). Their brand value is still to be established. If you want to try it, you may certainly try it as the specs look decent.

Abhishek Jain (Mod)

I think the LG Dual inverter models would be better.


Thanks Abhishek for the quick response! I will probably pass on Kenstar and look at other brands on Amazon on sale.

Wondering what do you think about this Voltas AC, it's on lightening sale on amazon and has wide voltage range from 150-270V (Not sure if an external stabilizer is still recommended.) The one drawback I see is this doesn't have a auto clean mode.

The product description says it has "Intelligent Heating keeps you warm during winter" but i couldn't find this listed on Voltas's website for the product and their customer service also doesn't seem to know when I reached out to them.


I see LG's dual inverter technology ac on sale and has a wider voltage operation from 140-290V (seems like an external voltage stabilizer wouldn't be required). Has auto clean mode that the above Voltas AC doesn't seem to have. The only drawback I see is this has an Alloy (I believe Aluminium) condensor as opposed to Voltas's Copper condensor.



What do you think?

Abhishek Jain (Mod)

Hi AJ,

My personal opinion is that LG Dual Inverter ACs with BEE 3 star rating are really good value for money options if your usage of AC is not really high. If your environment is not corrosive then you should go with them.


I want to buy a I tonn split inverter ac, I have on daikin ac since 3 years thailand manufactured, but I heard Daikin Ac coming these days have low quality than old one, Plx suggest me an inverter AC (1 tonn) with good quality & low power consumption......O general or Daikin or LLyod (some one suggest me that) ?? Plz suggest model

Abhishek Jain (Mod)

Daikin is made in India these day. I do not think it is too bad in quality but many people feel that the imported ones were better (but that is more of a perception I feel). If you are looking at OGeneral or Daikin then you may look at these:

General ASGA12JGC
Daikin FTKP35 (Amazon Link: http://amzn.to/2rsducX , Flipkart Link: http://fkrt.it/HtuEgTuuuN ) would be an equivalent AC.
Daikin JTKP35 would also be equivalent but it has air purification technology built in.
Daikin JTKM35 would be the most energy efficient model from Daikin and is also the most energy efficient 1 ton AC model in the market.


I planned to buy 1 ton LG split Inverter AC 3 star ISEER rating 3.86.
My decision right?

Abhishek Jain (Mod)

It is a right decision.

Achint Agarwal

I have a GODREJ diet ac 7 star performance and it is having 3.9 eer ,so how many units it consume in 1600 hr

Abhishek Jain (Mod)

If you are talking about 1.5 ton AC then it consumes 974 units in 1600 hrs of usage.


Hi Abhishek, Really hats off to you as you make your article more interactive by replying to most of the comments. Thanks. Just wanted to know as from 2018 ISEER is mandatory for all inverter models, so what about for Normal/Non-inverter models (from 2018), they will come with EER OR with new ISEER. And if they will come with ISEER then certainly the 5 start models today will become 3 star. Am I right ?

Abhishek Jain (Mod)

Your understanding is right. All models will come in same categorization and thus BEE 5 star rated non inverter ACs will be BEE 3 or 2 star (depending on their ISEER/EER) in 2018.


Does operating current also makes a difference? Will an AC of 7 amp will consume more electricity than that of 4-5 amp ( both being of same capacity and approx same eer of 3.6 ) ?

Abhishek Jain (Mod)

Models with same EER and same cooling capacity should have same operating current.

This is because EER = Cooling capacity divided by wattage

And Wattage = (approx) voltage x current.

So the current should be same if cooling capacity and EER is same. It cannot be a difference of 2 Amp, which makes difference of 2x220 = about 440 Watts difference.

Achint Agarwal

I want to purchase an A/C for my room and I am looking for Godrej NXW 1.5 ton with ISEER 5.8,I want to know that is the best or some other A/C, as the company is saying it is the India's Most power efficient A/C

Abhishek Jain (Mod)

Hi Achint,

I have not seen any 1.5 ton AC with 5.8 ISEER. Godrej also has a 1 ton AC for which they mention 5.8 ISEER (source: http://godrejnxw-ac.com/inverter-ac-range.php ) . Are you looking for 1.5 ton AC or 1 ton AC?


Thanks, Abhishek sir , just one more information the Godrej A/C of 1ton with 5.8 iseer consume how much of units in 1600 hrs ( is calculation of rs of electricity is units x price of electricity per unit ?)
And please tell me consumption of 1.5 ton godrej ac with 4.9 iseer.

Abhishek Jain (Mod)

Hi Achint,

The 1 ton AC would consume about 480 units in 1600 hrs. And yes the calculation of Rs of electricity is as you have mentioned.

The consumption of 1.5 ton AC would be about 790 units in 1600 hrs.


Hi i have bought Voltas Inverter AC 1.5 ton 183 V EY Model
Its ISEER Rating Is 3.70 for Room of 120 sft and i live on top floor then there is direct Roof
i m not satisfied with Voltas as i have Pansonic AC which is just 2 star in my other room of same size room which has 2.82 EER Not ISEER i had bought that in 2014 and still it provides me better cooling Than the Voltas
Pls suggest me good A/c as i work From home in night and need to switch on office room for 8hrs and bedroom for 15 hrs for my son
Do You recommend Dakin or any other brand i live in Hyderabad as i plan to change any one of my A/c

Thank you for Your Advice In advance :)

I am Not Much Satisfied with It

Abhishek Jain (Mod)

Hi Tushar,

Your room needs 1.3 tons of cooling, so you will have to go for 1.5 ton AC. Cooling of an AC depends on cooling capacity or the real tonnage of the AC. Usually there is a different real tonnage and marketing tonnage of any AC. An AC with 1.3 tons cooling capacity at times is marketed as 1.5 ton. Or even a 1.6 ton is marketed as 1.5 ton. But then a 1.6 ton AC will cool faster as compared to 1.3 ton.
Without knowing the difference between the cooling capacities of the two AC it will be difficult to comment. Also sometimes installers do a bad job and do not put the right pressure of refrigerant while installing, which leads to lesser cooling. It is not that Voltas does not cool well (believe me Voltas is the most bought brand in India). It could be that the installation was not proper or the cooling capacity was not right. Frankly, 1.5 ton inverter AC should be absolutely perfect if your room needs 1.3 tons of cooling.


Hello Abhishek,

I bought a 1.5 ton inverter Hitachi 5400i kashikoi series ac. I heard it is one of the best models in terms of performance and efficiency. I bought it for 56k. Do you think it is a good buy? Also the salesman said to me that there is no need to buy a stabilizer for inverter ac. Could you please let me know if I should go ahead and buy stabilizer?

Abhishek Jain (Mod)

Hi Siddhartha,

Hitachi Kashikoi 5400i is the most energy efficient models in the market (along with Daikin JTKM). So it is certainly best in terms of efficiency. It also has several sensors for performance optimization. So it is certainly a great choice.

Inverter ACs do not get damaged due to low voltage. But then in case there is a power surge, then the PCB can get damaged. Going for a surge protector or voltage stabilizer with surge protection (or Thermal Overload Protection) feature is advisable in case the power quality is not good (something like this: http://amzn.to/2qqlnf6 ).

Prateep Kumar panda

Dear sir
I have another room which contains 480 square feet.it is situated in first floor. There is no room above. If I fix 2 ton inverter ac is it suitable to cool the room. The calculator says 5 ton.

Abhishek Jain (Mod)

Hi Prateep,

DO not put undersized inverter AC as it will consume a lot of electricity. Better put BEE 5 star fixed speed AC for the same. Also it will not cool the whole room. It will just cool the area close to the AC.


Dear sir
In this calculation I got 1.3 tonnge for fit my room. Then I go for 1 ton or 1.5 ton inverter ac plz suggest me as one salesman said 1 ton 5 star inverter ac is equivalent to 1.2 ton. I decide purchase hitachi or daikin company ac 5 star inverter ac. So plz suggest which company is best for me. I am living in orissa.

Abhishek Jain (Mod)

Hi Prateep,

1 ton inverter AC can extend to 1.2 ton but not beyond that. Also inverter ACs consume more electricity when they run at higher capacity and less when they run at lower capacity. If you can go for 1.5 ton inverter AC, then that would be the best. However, if your usage is mostly at night then you can go for 1 ton inverter AC as well (because heat load is less at night). Hitachi and Daikin both have the most energy efficient BEE 5 star rated inverter ACs. Daikin has features like air purification, etc. Whereas Hitachi models have lot of high end sensors for performance optimization. If you want air purification then go for Daikin, else if you want performance optimization, then go for Hitachi.

Prateep Kumar panda

Dear sir
I want to buy a 1 ton inverter ac with 5 star rating. My room size is 154 Sq. Ft. Which is present in ground floor and also above a room is present. The 1 ton ac is suitable or not in this room.


Hello sir..
My room size is 144 sq feet..
And i want to purchase a new ac.
I m confusing between invert or non invertor..
Which is best. For long life.
And I have selected 2 ac
If non invertor then mitshubishi 1.5 ton heavy duty or o general 1.5 ton 5 star..

If invertor then o general asga 18jcc 1.5 ton
Which is the best plz reply me..
My usage is 10 hours at night countinusely

Abhishek Jain (Mod)

Hi Harminder,

I think o general asga 18jcc 1.5 ton inverter AC would be a better choice. It will be energy efficient and would be able to cool the room better.


Thanks Abhishek, my usage would be approx. 2 Tons as calculated. The Mitsubishi is 1.9 Ton inverter but the cost is only 2000 extra from Hitachi 1.8 T non inverter. Hence looked exciting. needed your guidance. I also read your comment regarding the Inverter not being undersized. Would that hold true for 1.9 ton versus a 2 Ton as well or that would be OK. Also is it true that inverter AC might have maintenance issues and may have a shorter life span as compared to a non inverter AC

Abhishek Jain (Mod)

Hi Mohit,

1.5 ton inverter Ac would be undersized for your room. 1.9 ton will not be undersized. In fact 1.9 ton inverter AC can extend to 2.1 ton. So it is perfectly fine for your room. And in fact Mitsubishi inverter AC would be the best choice.

Inverter ACs have PCB in outdoor units that are prone to failure. PCB usually get damaged due to two reasons: 1) Power Surges 2) Corrosion. As for power surges, there is protection available. You can either use a surge protector or voltage stabilizer with thermal overload protection. Or to go for an AC that can handle big voltage range (Samsung and LG have models that can work between 90V and 450V). But then preventing any metal from corrosion is difficult. However, corrosion only happens in corrosive environment (close to sea, lake, river, nalla or chemical factory).

If voltage is a problem then you can purchase a surge protector. But if you live in corrosive environment then it would be better to avoid inverter AC.


Hi, Abhishek, I need to buy a AC for one of the bedrooms (200 sqft) which has direct sunlight from the west side glazing. This is the most used room so I am looking for a 5 star Non inverter or would you suggest an Inverter AC. I was looking at Mitsubishi GN22VF (1.9T INVERTER) or a Hitachi 1.8 T Zunoh 5200f. Would you suggest something else please. Thanks in advance.

Abhishek Jain (Mod)

Hi Mohit,

First and foremost the most important thing to look for before buying an AC is to calculate the right tonnage. Right tonnage depends on city, room’s location (if it gets direct sunlight on walls/ceiling or not), size of the room and number of people in the room, etc. Usually we assume 4 people in a room to do some calculations. But other parameters are required to be known to calculate the right size. A city like mumbai needs less cooling because temperatures do not go too high. But a city like Delhi needs more cooling because it is too hot in summers. Similarly a room on top floor getting direct sunlight on the roof will need more cooling as compared to a room on lower floors. So I would suggest that you use the calculator on this page to calculate the right tonnage: https://www.bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html

Secondly the choice of inverter and non inverter depends on your usage and tariff. If the usage is high then it is better to go for high efficiency models and that is where inverter technology comes in. If the usage is low, then non inverter is also fine. And you have to look at annual usage in hrs and not just daily usage. The calculator will also show you the running costs of various types of ACs, so you can evaluate accordingly.

Once you decide on the right tonnage and budget, then I can suggest accordingly. Model wise both the models that you have selected are good. Mitsubishi Inverter AC is a fantastic choice but then a lot depends on what you need.


Hey Abhishek, I see you personally taking time to respond to questions, really appreciate this. Like many I am stuck in the crossroads of choosing an inverter AC. I am looking for three infact.

Could you please recommend some brands/models? I was planning on going for 5 star models, would that be overdoing it or should I stick to just 3 stars? My usage in bedrooms would be for around 8/12 hours and hall would be probably be 8/10 hours tops.

I have a hall that measures upto 370 square feet, hence a two ton AC would be the minimum requirement from what Ive read, what brand do you recommend?

Secondly, for both my bedrooms, they measure about 150/160 square feet each. I think 1 ton should suffice or maybe a max of 1.5, what do you think?

Abhishek Jain (Mod)

Hi Shreyas,

The choice of tonnage depends on a few factors 1) Size of room 2) City that you live in 3) Location of the room if it gets direct sunlight on walls/windows/roof then the load increases 4) Number of people in the room. Usually for home purpose we assume 3-4 people in the room, but then other things are required to do the right calculation. I would suggest that you use the calculator on this page to do the right calculation: https://www.bijlibachao.com/air-conditioners/what-is-inverter-technology-air-conditioner-and-how-it-is-different-from-bee-5-star.html

Also higher star ratings mean more electricity savings, but then you invest more money for higher star ratings. If you are only concerned about electricity saving then BEE 5 star rated model is the best. But if you are looking at what would be more reasonable, then you certainly need to look at your Annual usage of AC (it is not possible to comment on the choice with daily usage). When you use the calculator, you will see approximate costs of buying various star rated ACs and also approx cost of electricity based on your city tariff.

Finally I would not suggest you to undersize an inverter AC. If your hall is big and requires more cooling, it will be better to go for non inverter AC as undersized inverter AC will always keep running at peak capacity and at peak capacity they are not very energy efficient. So we generally suggest people not to undersize inverter AC.


I am looking for a 1.5Ton inverter AC with budget of upto Rs42-45K. Could you suggest the best fit Brand/models based on the below requirement;
- 3/4 star rating (as usage would be for 8-10hrs mostly in night)
- non-corrosive
- Prompt After sales service (Stay in Thane-Mumbai)

Abhishek Jain (Mod)

Hi Vinayak,

You can look at any of these:

Hitachi RSH318EAEA (Amazon Link: http://amzn.to/2oDyR7E )
Blue Star 3CNHW18TAFU
LG JS-Q18AUXA (Amazon Link: http://amzn.to/2rpKteZ )
LG JS-Q18SUXD (Amazon Link: http://amzn.to/2oMG2Le )
Panasonic PS18SKY
Blue Star 3CNHW18NAFU

These are all copper condenser models with high ISEER. Hitachi, Panasonic and Blue Star will have corrosion protection as well.


AR12MV5HEWK 8 Pole vs JTKM 35 CAN YOU COMPARE ADVANTAGES AND DISADVANTAGES and suggest a better value for money AC


or suggest any other better AC, like O general , Voltas , LG,Samsung , only criteria is Energy efficiency , best performance and reliability .

Abhishek Jain (Mod)

What is your budget for this AC?


My max amount is 45k, but looking for a value for money option.

Abhishek Jain (Mod)

The LG models that I have mentioned would be most value for money for you.


Around 40 k - 45 k . Budget is not my concern my concern is best value for money . I hope at least in a year or two we can take back the initial investment difference .

Abhishek Jain (Mod)

Inverter AC will not payback in 1-2 year. But then a lot depends on the brand you are choosing as well. Brands like Hitachi, Daikin, etc that are premium brands will be expensive even for a BEE 5 star rated non inverter AC. While LG and Samsung BEE 3 star rated inverter ACs will be quite cheap (cheaper than BEE 5 star non inverter from premium brands) and decent value for money. You can look at these LG BEE 3 star rated inverter ACs:

LG JS-Q18ATXD (Amazon Link: http://amzn.to/2plxzkK )

LG JS-Q18AFXD (Amazon Link: http://amzn.to/2oA2VBg ) similar model with different design

LG JS-Q18CPXD (Amazon Link: http://amzn.to/2oA7Ban ) ... this is an Amazon only product and I doubt you will get this in market.

LG JS-Q18NPXA (Amazon Link: http://amzn.to/2oA6Nm5 )

LG JS-Q18SUXD (Amazon Link: http://amzn.to/2oMG2Le )

LG JS-Q18AUXA (Amazon Link: http://amzn.to/2oMjWqB )

These are all highly energy efficient as well as quite value for money. The AU, SU and TU series have copper condenser.


And does buying an inverter 5 star Ac make sense when it is 6000 to 10000 rupees costlier than a non inverter 5 star AC .


Got a clear idea of the new ISEER value, but how does this value help a customer in staying in Chennai where , round the year average temp in day time is about 33 degrees max and 23 degrees min . And a exhaustive research showed me that most of the Ac s are still showing EER values or many are not showing any values at all . And almost all the Ac manufacturers claim max rated current of less than 5 A for the same cooling capacity as my ten year old AC which has a max rated current of 5.7 A. I am unable to judge how to buy an AC with the specifications given by each manufacturer . Suggest me a energy efficient AC 1 ton capacity for a 100 Sq.ft room open to sun on west side and have a false ceiling roof . I selected the JTKM 35 from daikin but am atracted by samsung new 8 pole motor AR12MV5HEWK model and the price .

Abhishek Jain (Mod)

BEE did their best to come with some value that can help you identify which AC is energy efficient and which is not. India is such a big country and has different climate at different places. Coming up with one forumla that can handle all is impossible. The number may not be exact based on your location, but it is still the best bet for India. It at least gives you idea as to which AC is more efficient. No one can tell exact electricity consumption as it will vary based on 100s of factors. But it does point you to something better.

In case of inverter ACs what you read as "Max" is truly "Max". It does not mean that it will run at that amount of current. Inverter ACs have variable speed compressor which will change its speed depending on the need of the room and thus its current drawn will also change. And 5A is "max".

Now to buy an AC, 1st thing is to calculate the right tonnage (which actually depends on city, room location and room size). For that I would suggest that you use 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

The next thing is to choose the right star rating based on your usage (you can always go for higher star rating if you really want to save electricity, not just for saving money, but for the environment, etc). The calculator also gives you approximate amount that you will have to pay in electricity (again this is based on the BEE data and so it is an approximation, no one can give you exact amount) for various star ratings. This will help you identify if you should go for highly energy efficient AC or not.

The last thing to look at is brand and obviously your budget and what exactly fits in your budget. You may also have to look at the right kind of material and technology for your AC. As not everything works great in all environment. And specially in corrosive environment (which is close to sea, lake, river, nalla or any water body or chemical factory), it is better to avoid aluminium condensers and also unfortunately you also need to avoid inverter ACs as PCBs are prone to failure in corrosive environment. Now if you are in Chennai and you are close to the beach (within a couple of KMs) then I would suggest you to avoid inverter AC. And would suggest you to go for an AC with copper condenser with solid corrosion protection.

You may not need a BEE 5 star rated inverter AC if your usage is not high. But if you want to go for it, I would not try to stop you as it certainly saves more electricity. But for ROI, you need to check your annual usage. I would suggest you use the calculator on this site first.


First of all thanks for so much of ur painstaking efforts to provide us all great insight about energy conservation.
Anyways i have been looking for 1.5 ton ac (calculated on this site) with my budget of 30-35000 and found this Mitakshi AC
MiSAC15INV20 1.5 inverter on flipkart but shud i go for this? Probably this is a 3 star inverter ac. Will this be more energy efficient than a 5star 1.5 ton standard non-inverter split ac? What should i choose in this budget or which is more efficient generally: a 3 star inverter ac or a 5 star non inverter ac. I live in alwar rajasthan which has weather quite similar to delhi. Thanks

Abhishek Jain (Mod)

Hi Kishore,

Mitashi Model (Flipkart Link: http://fkrt.it/pD1hkTuuuN ) has ISEER of 3.6, which would make it BEE 3 star rated. For normal non inverter AC BEE 5 star rating starts with ISEER of 3.5. There are models in BEE 5 star non inverter that have ISEER as high as 3.9 as well. So it depends on which model you are comparing. But still it would be better that many of the BEE 5 star rated non inverter models that you can get in your price range. You can certainly go for this model in your budget.


So can u pls suggest me some of non inverter 1.5 ton 5 star ACs (more energy efficient than this mitashi's 3star inverter ac) and within my budget range, as i m skeptical about relying on a new brand like mitashi.

Abhishek Jain (Mod)

I do not think you can find models with better EER in 30-35K range. There are some with same EER:

Lloyd LS19A5LK
Onida SA185GDR (Flipkart Link: http://fkrt.it/xzAjy!NNNN )


Hi, the article provides a great insight to everything related to air conditioning​. However I'm planning to purchase​ offline.

Going for 1Tonn 3 start Inverter AC.

Hitachi,Bluestar and Daikin doesn't have service centres in my city.

The one's available are Voltas, Lloyd, LG, Videocon, Samsung, Panasonic, Godrej,Haier, and Sharp.
Please suggest a cheap or value for money model. Or may be inder 35k.

Abhishek Jain (Mod)

Hi Yadhukrishnan,

Among all the brands that you have mentioned, I think LG is the best value for money for you. They have several models that are good, but I think you should look at JS-Q12AUXA or JS-Q12SUXD.


Hi, thanks for the reply. I immensely Appreciate it.

The models provided are good on the budget but as I checked with the retailer those two models are out of stock and it would atleast take a week to be available, as of current situation​ I'm opting for JS-Q12NUXA/2017 for 32k with V400 V-Guard Inverter and Installation and delivery charges included. Only downside is the lack of up-down swing(specs from lg website). But I'm hoping that wouldn't make much of a difference ,now would it?

Abhishek Jain (Mod)

That should not be a big problem. I think it is a good choice considering your needs and budget.


Thank you again, just fited the AC and much to my surprise it does have the swing feature.


Please suggest me 1.5 ton inverter a.c best for me .Hitachi or blue star or Volta's or dainik.please suggest also model name .in inverter 5 star blue star or Hitachi best

Abhishek Jain (Mod)

You can look at any of these:

BrandModelAmazon LinkFlipkart Link
GODREJGSC 18 GIG 5 DGOGhttp://amzn.to/2qYbrtVhttp://fkrt.it/HpJNaTuuuN

Hi , I am staying in jaipur with a room on 2nd floor and get direct sunlight over the room from terrace and front side. Room dimension are 22ft length 14ft width and 14ft height. Temperature in this part of country is usually above 40 degree. Please suggest me whether I should take a 5 star fixed speed a.c. or an inverter a.c.. I had shortlisted Mitsubishi and daikin. Kindly suggest a model. I think I will need 2 ton ac

Abhishek Jain (Mod)

Hi Irfan,

In Daikin you will have to go for 1.8 ton AC as they either make 1.8 ton or 2.2 ton. And in BEE 5 star range they just have 1.8 Ton. You can look at these models:

Mitsubishi Electric MS-GL24VF
Mitsubishi Electric MS-GK24VA (Amazon Link: http://amzn.to/2qV1bCM )
Daikin FTF60 or DTF60 or ATF60 (the difference between the three is just filters and Smart Phone connectivity, FTF is the basic model).

However I think 2 ton would be better for you than 1.8 ton.


I want to buy Godrej NCW inverter 5.8 ISEER AC. My room requires 2 ton AC but will 1.5 ton inverter ac suffice or should I stick to 2 ton fixed ac. Please advice.

Abhishek Jain (Mod)

1.5 ton inverter AC may not suffice if your usage is also during the day. If the usage is only at night then 1.5 ton inverter AC may suffice.


Am using a fairly old Daikin 1.5 TR FT50BVM. One of the major issues faced is clogging up of indoor unit and air flow blockages giving calling for repeated instances of service and wet service of Daikin is quite expensive. I was recently told that cleaning the plastic filters every week should not be done and instead should be cleaned only once in a month or two. Is that correct? Can anything else be done to prevent repeated clogging.

Also, are Daikin JTKM50 or Hitachi RAU518CWEA suitable potential replacements for dusty environment. Many thanks!

Abhishek Jain (Mod)

Hi Farroukh,

Filter cleaning frequency depends on how frequently do they get dirty. If they get dirty every week, then it needs to be cleaned every week. But then I have not seen such situation. All I know is that dirty filters reduce cooling as well as energy efficiency. You can go for a model with iClean technology. Hitachi RAU518CWEA does have iClean. This technology automatically cleans the air filters. I think that would be a better replacement.


Hi,I want a 1.5 ton ac preferably at BEE 5 star ac or an inverter ac which will save equivalent energy/money ,i live in UP temp is around 46-47C room size 12*12 ,persnally i have chosen bluestar as it has many service centre in my city ,my budget for buying ac is 35k but can expand to 38,500 also please suggest the same

Abhishek Jain (Mod)

Hi Amol,

The best and most efficient models that you can get in your budget are BEE 3 star rated inverter ACs from LG:

LG JS-Q18ATXD (Amazon Link: http://amzn.to/2plxzkK )

LG JS-Q18AFXD (Amazon Link: http://amzn.to/2oA2VBg ) similar model with different design

LG JS-Q18CPXD (Amazon Link: http://amzn.to/2oA7Ban ) ... this is an Amazon only product and I doubt you will get this in market.

LG JS-Q18NPXA (Amazon Link: http://amzn.to/2oA6Nm5 )

Blue Star BEE 3 star inverter AC would be expensive, in fact even their BEE 5 star rated ACs would be expensive. LG is the best in that budget range. Otherwise you can look at these BEE 5 star rated ACs:

Hitachi RAU518KWD (Flipkart Link: http://fkrt.it/SFpEQTuuuN , Amazon Link: http://amzn.to/2pN0WvZ )
Whirlpool 3D COOL XTREME HD 5S (1.5 T) (Flipkart Link: http://fkrt.it/SGYhQTuuuN )
Carrier Superia 5 Star (Amazon Link: http://amzn.to/2p7pv7P , Flipkart Link: http://fkrt.it/SGJhKTuuuN )
LG LSA5NP5A (Amazon Link: http://amzn.to/2p7qEMQ , Flipkart Link: http://fkrt.it/m1YxJ!NNNN )


Best 1 ton 3 star inverter AC (Copper) for a 120-130 sq. ft room.........Hitachi vs Daikin which one I choose?? Please suggest me the best brand among the aboves , along with their best latest series (model no)....
I am from West Bengal..please suggest the best one according to after shell service.
My budget is around 45k.

Abhishek Jain (Mod)

Hi Tanay,

In BEE 3 star 1 ton, Hitachi has 3 models RSG312EAEA (Waza 3200i), RAU312EWEAD (Neo 3200i) (Amazon Link: http://amzn.to/2pkb24s ) and RSB314IAEA (Kashikoi 3300i ... it is actually a 1.2 ton model). And Daikin has just one model FTKH35. The energy efficiency of FTKH35 is close to any BEE 5 star rated non inverter AC. But the Hitachi models have far better energy efficiency ratio of 3.94. So I think Hitachi has better models to offer in BEE 3 star 1 ton inverter.

Also among the 3 models, Kashikoi 3300i is the most feature rich with isense technology (sensors that can optimize performance as per the need of the room) followed by Hitachi Neo. Waza is a basic model.


Hello Sir,

My friend wants to buy 5* inverter AC of 2 Ton for his 200 sq.ft. drawing room. He is living in Delhi and has a budget of 60000. He is living near a big drainage which is 300 meters from his house.

Please tell which is better out of Hitachi RMA524CAEA (2 Ton) and Mitsubishi GN22VF (1.90 Ton) model.

Thanks in advance.

Abhishek Jain (Mod)

Hi Rohit,

It would be a bit risky to go for inverter AC if living close to a drainage. Based on the feedback we have received lately, corrosion can impact PCB. Energy efficiency wise both the models you have selected are quite close. Hitachi model having better cooling capacity will cool faster. Check for the support of these brands in your area, go for the one who is better in your area. Otherwise both brands are premium brands.


Thanks for the reply. Which of these 2 companies have lesser complaints of their ACs specially the PCB?

Else if he does not go for the above 2 models, which non-inverter model he should go with, his usage is 6-7 hrs a day for 6 months.


Abhishek Jain (Mod)

Hi Shakti,

Corrosion is a ticking time bomb with you having no idea when it can burst. Some areas are highly corrosive, so much so that it can get damaged in few months, some are less and thus the PCB can survive for a few years. But no one can tell when it will get damaged. And when the PCB is in outdoor unit, it will get damaged, whatever brand it is. So I cannot tell which brand has lesser complaints.

In Fixed speed, you can look at these models:

Hitachi RAU524AVD (Amazon Link: http://amzn.to/2n0EHm9 )
Hitachi RAU524IVD (Amazon Link: http://amzn.to/2nKvoUL )
Mitsubishi Electric MS-GK24VA (Amazon Link: http://amzn.to/2opgxBL )
Blue Star 5HW26AATU


Thank You so much Mr.Abhishek


How about DAIKIN JTKM50 and FTKP50. Compared between both, which one will be the best?

Abhishek Jain (Mod)

Daikin JTKM50 is the best.

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