Electricity Saving Tips For Homes And Offices

Air Conditioners: Copper Coil vs Aluminium Coil

By on August 7, 2017

During the scorching summer heat, cool pleasant air is just a switch away. Just turn on the air conditioner and within minutes you can feel the cold air around you. Apart from the various factors that determine which type of air conditioner is better, there is an age-old debate as to which type of coil is better – Copper or Aluminium. Before we see the pros and cons of each type, let us first understand the importance of these coils in the air conditioning process.

Importance of coils in Air Conditioners

The core to air conditioning is a refrigerant gas that goes from gaseous state to liquid state by compression and then again changes back to gas by absorbing heat available in the room. It goes through a refrigeration process that is mainly divided into 4 parts:

  1. Compression: The gas is pressurized and converted into a high-pressure hot liquid.
  2. Condensation: The liquid flows through a coil where the high-pressure hot liquid refrigerant is converted into cooler liquid by releasing heat into the outside air. This is a part where coils are used.
  3. Expansion Valve: A valve then converts high-pressure liquid to low-pressure liquid.
  4. Evaporation: The low-pressure liquid again goes through an evaporation coil where it absorbs heat from the room and changes from liquid to gas. This process happens in the indoor unit while all other happen in the outdoor unit (in case of split ACs).

Source: http://en.wikipedia.org/wiki/Air_conditioning

Basically the heat from the inside air is transferred to outside air and this transfer of heat takes places in the coils.

The refrigerant in the evaporation coils evaporates (changes from liquid to gas) by absorbing the heat from the air (air from the room) passing over it. The air (from the room) cooled in this process is directed into the room. The gaseous refrigerant is then passed through the compression process and condensation coils where the refrigerant condenses by releasing the heat into the air surrounding it. This warm air is blown out with the help of exhaust fans.

This working principle remains same in all types of HVAC systems; just the size of the system keeps on varying.

Hence the type of coils used in them affects the efficiency of HVAC systems. The size of the coil, the material used to make them, their ease of cleaning and maintenance; all play a very major role in the functioning of the HVAC systems.

History of Air Conditioner Coils

In past the most popular choice for making these coils was copper. For many years only copper was used to make the coils in HVAC systems due to the various benefits it had, but that made air conditioner expensive and not everybody could afford them. By around 1970, General Electronics took a step that was a game changer for the air conditioning industry. The started using aluminium to make coils. The cost of using aluminium was much less than that of using copper, which brought down the subsequent rates of ACs making it a luxury that most people could afford.

Since then there has been a debate about which material is better for making coils.

Differences between Aluminium and Copper

1) Heat transfer characteristics:

As the transfer of heat takes place in the coils, it is very important for the metal to have good heat transfer characteristics. Copper has a heat transfer coefficient higher than aluminium. That means, copper is a better heat exchanger than aluminium.

2) Cost and Pliability (The quality of being easily bent):

Copper is costlier than aluminium, which increases the cost of making an air conditioner and thereby the price of air conditioner. To reduce the unit cost of manufacturing ACs, aluminium has become the favorite choice of manufacturers.

Another factor to be considered is pliability. Aluminium as compared to copper, has a better ability to be bend into the shapes desired. Hence to make a coil of same size and shape, approximately three times more copper is required, making the process costlier.

However, to bring down the cost of AC with copper coils, thinner and thinner copper coils are being made now days.

3) Strength and reliability:

Copper is much easier to repair on field than aluminium. Many times, when aluminium coils are damaged they need replacement. The coils made out of copper are much more stronger than aluminium. Hence they are durable.

4) Ease of maintenance:

As the condenser coils are placed in the unit that is usually placed outside the house; it is exposed to harsh climates and dust and this needs regular cleaning for better functioning. Having said that, copper coils are easy to clean and maintain, as they are durable. While aluminium coils are not strong and so need to be kept in heavy-duty cabinet to protect them from damage. This makes them difficult to clean and maintain.

5) Corrosion:

Corrosion plays as very important role in determining the life of an Air Conditioner. Corrosion damages the coils that hampers the heat transfer process and also results in leakage. Hence it is very essential to protect the coils from corrosion. Corrosion damages are higher in humid climates and for people living near seacoasts and salty water bodies, as the moisture content in air is higher in such areas.

Due to these corrosion, a non-conducting layer is formed over the coils, which reduces its heat exchange capacity. Today many modern technologies have been developed to protect the coils against corrosion and thus increase the life of ACs. (Tip: Look for corrosion protection techniques while buying AC such as coating over the coils etc)

Latest Technologies in Air Conditioner Coils

There are benefits and cons of each type of metal that make it a suitable choice for making coils. But when looking for an answer as to which is better, do check out some modern techniques that have given good results in terms of performance and efficiency of coils. Some noteworthy technologies are:

  • Blue fin condensers:

Source: http://web.tradekorea.com/upload_file2/sell/70/S00043870/ar_conditioner_condenser.jpg

The most common solution is to pre-coat the coil with anti-corrosive materials, used by brands such as Voltas etc. Another name for this technique used by brands such as Panasonic, Electrolux, O General, Blue star etc, is “Blue fin condenser”. In this, the condenser coil is protected from the humidity and moisture. This technique can be very useful to people living in the coastal areas or close to salty water body.


  • Micro channels:


    Source: http://yorkcentraltechtalk.files.wordpress.com/2012/05/microchannel-coil-construction2.jpg

Micro channel condenser coils are all aluminum coils. There are multiple flat tubes made of aluminium containing small channels (microchannels) through which refrigerant flows. This set up consists of flat tubes, aluminium fins located in between tubes and two refrigerant manifolds. Since this set up does not have a joint of two dissimilar metals, there is no galvanic corrosion. So these coils are not only a better option for people living in coastal areas and corrosion prone areas, but also the increased thermal performance due to the increased surface area make them very efficient. Samsung uses this technique in many of its models by the name of ‘Muli-Jet’ technology.

Tips that help:

1) Look for corrosion protection techniques while buying AC such as anti-corrosion coating,Blue fin condensers etc.

2) Look for features such as auto clean mode etc which will allow you to clean coils and maintain them. Some Hitachi ACs come with an ‘Evaporator coil clean mode’ that will clean the evaporator coil automatically making it easy to maintain.


CharacteristicsCopper coilAluminium coil
Heat transferBetter than aluminiumLower than copper
CorrosionCan corrode but can be maintained by cleaning regularly and can also be repaired easily.Aluminium can also corrode and it is difficult to repair in case of corrosion and thus needs replacement.
PliabilityMore metal needed to make coilAs compared to copper lesser metal is required to make the coil
CostRaw copper is costlier than aluminiumRaw aluminium is cheaper than copper.
DurabilityStronger than aluminium, hence more durableNot as strong as copper, hence less durable. Often needs to be placed in heavy cabinet for protection.
Ease of maintenanceEasier to clean and maintain.Difficult to clean due to cabinet around it. The micro channels can also get clogged and cleaning the same is difficult.
RepairingEasy to repair on field.Difficult to repair on field. Many times it may need complete replacement.




List of ACs available in India along with their type of condenser

Below list contains all the ACs available in India (and registered with BEE) and their condenser type. You can use the filters on top of the tool to filter the data:

This tool has been developed in collaboration with:

Short video for tips to buy the best air conditioner in India




Calculator for Sizing Air Conditioners in India

Select your city, dimensions of room, usage hours and sunlight checkboxes to get our recommendations. The inputs are on the left size and our recommendations on the right side. Also please note that these calculations are for a regular room in a house. If the room size is more than 400 sq ft then it would be better to call an engineer to do the evaluation.

Air Conditioner Sizing Calculator for India

(Note: This calculator is for a residential setup. It assumes a regular room with some furniture, basic appliances and 4 people in the room. Please do not use the numbers for a commercial setup.)

Check this if the ceiling of the room gets direct sunlight from top during the day.
Check this if West, South or South West walls of the room get direct sunlight during the day.
Please select a city
Size of Air Conditioner that you need:


Yearly Units ConsumptionYearly Electricity CostsApprox Cost of Buying
BEE 3 Star Non inverter
BEE 5 Star Non inverter
BEE 3 Star Inverter
BEE 4 Star Inverter
BEE 5 Star Inverter


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


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अगर आप के कुछ भी सवाल हैं, वह आप नीचे दिए हुए सवाल-जवाब सेक्शन में पूछ सकते हैं। आप अपने सवाल हिंदी में भी पूछ सकते हैं और हम आपको हिंदी में ही जवाब देंगे। कृपया एक ही सवाल को बार बार ना डालें। आप एक बार जब "submit " बटन दबाएंगे, उसके बाद आपका सवाल यहाँ दिखने में थोड़ा टाइम लगेगा। कृपया धैर्य रखें। अगर हमारे पास आपके सवाल का जवाब है तो हम उसे जल्दी से जल्दी जवाब देने की कोशिश करेंगे। कृपया अपने सवाल ई मेल या सोशल मीडिया पर ना डालें।

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Hi Abhishek..im lookng for AC vth 1ton or 1.2ton,BEE 5star, copper coil, inverter mode, blue fin corrosive protection as v r stayng highly polluted place in Hyderabad.budget is 35-37k. My options are voltas, blue star and Hitachi.. can i go vth thse based on my preferences. Pl suggest good one based on my requiremnt.

Abhishek Jain (Mod)

Voltas model will have Aluminium Alloy condenser. Going from Bluestar would be better as it has blue fin corrosion protection as well.

Abhishek Jain (Mod)

Hi Raja,

5 star inverter ACs are expensive and getting a Hitachi one in your budget is extremely difficult. Even Bluestar would be a bit expensive (may be 2-3 thousand more than your budget). However, you may get Voltas in your budget. You can look at these:

Voltas 125V DYe (check TataCliq: https://www.tatacliq.com/voltas-125v-dye-1-ton-5-star-inverter-split-ac-white/p-mp000000000206997 )
Bluestar 5CNHW12PAFU (check TataCliq: https://www.tatacliq.com/blue-star-bi-5cnhw12pafu-1-0-ton-split-ac-white/p-mp000000000293354 )


Thnx fr ur reply Abhishek. But condensr in voltas is Alloy type. Does anti corrosion protctr type comes in voltas Abhishek?kindly suggest...

Abhishek Jain (Mod)

In general Copper models are a bit more expensive. VOltas has one more model 125V Crown (AW) which is copper and would cost about 50k. The Blue Star model which is for about 40K is a real good one in case you are looking for 5 star. Else you will have to go for BEE 3 star rated models from these brands.


coppre aur aloy me kya antar hai in hindi

Abhishek Jain (Mod)

alloy ... aluminium alloy hota hai aur copper copper ka bana hota hai .... agar aapko aluminium nahin chahiye hai to alloy wala mat lo.


Hi Abhishek
I live in Ahmedabad and my room size is 11*10*10 . The flat is on middle of the building with sunlight in evening only. Pls suggest me inverter ac under 35K. What about mitashi and Sansui brands ac available on flipkart. Are they durable

Abhishek Jain (Mod)

A 1 ton inverter AC would be good enough for your room. In a budget of 35K you can look at these:

BrandModelAmazon LinkFlipkart Link
GODREJGSC 12 MINV 3 RWPM http://fkrt.it/NiWEJTuuuN
VOLTAS123V EYhttp://amzn.to/2AcVciuhttp://fkrt.it/N~DytTuuuN
SANSUISS4C34 http://fkrt.it/NvXdtTuuuN
WHIRLPOOLEZ FANTASIA INVERTER COPR 3S (1 T)http://amzn.to/2AcDV90http://fkrt.it/NvUT3TuuuN

As for Mitashi and Sansui, as per the specifications, the material that they use is good and should be durable. But the brands/models themselves are not really old in India to comment much on their durability. That comment can come only when they have been in the market for 10-15 years.


Hi Abhishek,
I must compliment on the range of information available on your Blog and doing a wonderful job in guiding customers to save electricity.
I have purchased Intex 1.5 Ton 3 Star Inverter Ac with copper condenser coil and 10 years warranty on compressor, after checking the details on Brand's and sellers website.
However, the brand has no where mentioned on the packaging or product / user manual card that its a 3 Star, Inverter Ac with copper condenser.
I have tried getting these details in writing form Ac manufacturer but still yet to receive.
The label on packaging shows imported from TCL in March 2017, cooling capacity 5000 W and input power is 1850 W.

Can you pl advise how to check if its an inverter model with 3 Star rating or which Government Department to approach to validate the technicals as mentioned by manufacturer or to register a complaint?

Thanks In advance.

Abhishek Jain (Mod)

Intex has a BEE 3 star rated 1.5 ton AC model number SS183TC-CB which has ISEER of 3.6 and annual electricity consumption (for 1600 hrs) of 1076.47 units. You can check the data on this link: https://www.beestarlabel.com/Home/Searchcompare

Check on Schedule 19 (Variable Speed Air Conditioners) which is at the bottom of the link.


Stabilizer neceesary to buy for Inverter AC or not?

Abhishek Jain (Mod)

Depends on the power fluctuations in your area. Inverter ACs do not need voltage stabilizer as they do not get damaged due to low voltages. But then can get damaged due to surges which are sudden high voltage caused due to short circuits or lightning etc. To protect it, you may go for a surge protector (alone) or for a voltage stabilizer with thermal overload or surge protection feature.


Hi Abhishek,
I bought a voltas 1.2 ton ac few months back it's with R22 gas as most of voltas ac have the same refrigerant, will I face any problem with that as I read that R22 will be phased out by 2020 or 2030? Also need to understand that one will be impacted with the phase out only where there is a leakage right?

Abhishek Jain (Mod)

Gas is needed only when there is a leakage. Else you do not need to replace it regularly. The broader phaseout plan is for 2030 for R-22, however, still many ACs with R-22 are available in the market. It is difficult to say how it will play out. After 2030 R-22 will not be available in the market even for replacement. But before that, it should be there. But slowly the supply will decrease.


thanks for your prompt response, i hope i should not be regretting my decision of buying a voltas right ? any idea about this model (SAC 153 LYD) of Voltas

Abhishek Jain (Mod)

Voltas is a brand that has the highest market share among ACs in India. And it has captured that because people surely do not regret buying it. 153 LYD would be a BEE 3 star rated non-inverter model. Please note that BEE 3 star non-inverter would be least energy efficient model available in the market, so it would consume more electricity. As per the new standards that come in from 1/1/18, it would be BEE 1 star rated.


hi there,

I want to buy whirlpool inverter ac 1.5 ton or Daikin 1.5 ton 3 star which one is better for durability,long lasting? Daikin 1.5 ton 3 star is energy efficient or not.My budget is only 33k.Please suggest me full copper best energy efficient AC.Also, My Samsung Ac's indoor units evaporator coil gas leaked.How much it cost to replace or repair? please answer.

Abhishek Jain (Mod)

If you can get Whirlpool Inverter AC of 1.5 ton copper model in your budget, then I think that would be the best. BEE 3 star non inverter will not be energy efficient. BEE 3 star non inverter is the lowest in terms of energy efficiency available in market.


Whirlpool inverter 3 star AC is durable or not?And what's solution for my Samsung Split 1.5 Ton 3 star AC damaged evoporatorHow much it cost to replace it?I heard whirlpool AC is not good in Durability in comparison with Daikin. What u advice?

Abhishek Jain (Mod)

Whirlpool is a good brand and their inverter ACs now come with a copper condenser. It should work out good for you. I am not aware of costs of replacing evaporator, you will have to check it in the market.


LG 1.5 TON JS Q12BPXA or carrieer 1.5ton which AC is better


Thanks for your rply
carrier 1.5T 18K duractiv and Carrier CACl18SU4l1 Superia i choosed this two model but in shop they are saying invertor is better which can buy your suggestion

Abhishek Jain (Mod)

Inverter model would be far better than the non-inverter model that you are looking at.

Abhishek Jain (Mod)

Which model from Carrier?


Carrier superia 18K CACl18SU4l1 invertor

Abhishek Jain (Mod)

Carrier CACl18SU4l1 Superia is a better model. You should go for it.



Abhishek Jain (Mod)

Well, it totally depends on your usage. Carrier is a great brand (a premium one), but the model you have selected is a BEE 3 star rated model, which would be the least energy efficient (or most electricity consuming) model from Carrier. If your usage is significantly low, then it may work. But if the usage is substancial, then go for a better (more efficient) model from Carrier.


can aluminium condensor be repaired, if yes where. technician says theres a leak in the condensor & needs to be replaced.
plz help

Abhishek Jain (Mod)

Aluminium condensers cannot be repaired. They are mostly replaced.


Never go for aluminium condensor. I bought a Samsung 2 ton split AC paying huge amount and right after 1 year it stopped cooling. Samsung said there is leak in Aluminium condensor and wanted a big amount to fix it .they didn’t cover it under warranty as i crossed 1 year (1 year and 15 days to be exact). so whenever you want buy an AC always ask for the type of condenser and it is Aluminium never buy it.


Dear Abhishek,

I'm currently staying in pune and i want to purchase three Ac/s for my flat. As per your calculation i would require two 1 ton ACs and one 1.5 ton ACs. Can you let me know which company should i prefer for buying them since there are various companies and im confused. Should i go for inverter ACs or non inverter ACs as my use will be higher in summers only.

Thanking you...


Dear Abhishek ,I want1.5 Ton 3 star spilt conditioner with copper coil with lowest indoor noise suggest good brand with Model.


Dear Abhishek, Thanks for your reply. my area is more than 150 KM from Sea also no water body or Nala near by home budjet is around 40 K .Suggest modle of LG dual inverter also with copper if avaible. Or if alloy is fine in view of my area whether you can show model

Abhishek Jain (Mod)

Hi Jatin,

There is one copper model which is available on Flipkart in your budget: LG JS-Q18AUXA (Flipkart Link: http://fkrt.it/FPiUvTuuuN ) .... otherwise even alloy ones would be good for you and you can check LG JS-Q18ATXD (Amazon Link: http://amzn.to/2fOYMpI ) or LG JS-Q18AFXD (Amazon Link: http://amzn.to/2fVVhla ).


My use is limited one hours during summar season hence Inverter tech. is no mean for me. Want 3 star with lowest one IDU DB noise. LG latest dual inverter tech.claim 31DB IDU but it is alloy coil hence i doubt about durebility of alloy one. How ever you view on alloy coil model also.

Abhishek Jain (Mod)

LG Dual inverter AC would be the quitest AC around in the market. They have both copper and aluminium models. Models containing AU, SU or TU in the name are copper condenser models. But if your environment is not corrosive (close to sea, water body or nalla), then even an aluminium model will work great. But then your usage of AC is quite less, so inverter tech may not have ROI. What is your budget for this AC?

Abhishek Jain (Mod)

Hi Jatin,

Are you looking for models with inverter technology or regular ones? In general models with inverter technology would be far better, but a bit expensive.

Abhishek Jain (Mod)

Hi Ashish,

What is your budget for the three ACs?


Dear Abhishek ,

Thank you for your reply.

We want to buy good AC, which will have value for money and we save on electricity bills and maintenance. We dont mind spending money as this is one time investment.
We want to buy two 1 ton ACs and one 1.5ton Acs. After doing research on you website we have finalzied Daikin company and following are the numbers which we have

Our usage would not be heavy and would require mostly in summers.
Kindly let me know which one should we go.

Thanking you

Ashish Meher

Abhishek Jain (Mod)

Hi Ashish,

If your usage is only in Summers then you can go for 3 star inverter AC. You can go for the FTKH series from Daikin.


Thanks Abhishek,

I am looking for 1.5ton, could you please suggest. Thank you.

Abhishek Jain (Mod)

If you want to go for Inverter technology Air Conditioner then you can look at these:

Hyundai HS4I54 (Amazon Link: http://amzn.to/2uDsUwh , Flipkart Link: http://fkrt.it/jgDQaTuuuN )
Sansui SS4C54 (Flipkart Link: http://fkrt.it/jh2NDTuuuN )

But otherwise you can look at:

Mitashi MISAC155V05 (Amazon Link: http://amzn.to/2vdfzwa ,Flipkart Link: http://fkrt.it/MRGt!!NNNN )
Lloyd LS19A5LN (Flipkart Link: http://fkrt.it/Me5k7!NNNN )
Micromax ACS18ED5CS01WHI (Amazon Link: http://amzn.to/2uDTe9Q , Flipkart Link: http://fkrt.it/j5Cs1TuuuN )
Sansui SSD55 (Flipkart Link: http://fkrt.it/MRbLS!NNNN )


Hi Abhishiek,

I am from hyderabad and my room size will be 12 X 12 , and house is near to nala. which AC we should be buy, i am looking at a budget around 30k. pls suggest. Thank you

Abhishek Jain (Mod)

Hi Ravi,

Can you please use the calculator on this page to calculate the right size? As per my calculation, you would need anywhere between 1 and 1.5 ton. But the exact number will come up if you put in all the parameters in the calculator. You will get better models if you need lower tonnage.


Hi want to buy 3 ACs for 10'-11' X 12' ( 2 rooms) & L shaped Dining room on 4th floor in Delhi. Its multisorey building so no direct sunlight on roof.
Sunlight on south for 2-3 hours
Usage of two bedroom ACs - 7 hours max
Which model or brand you suggest which is electricity & pocket friendly.
The residence is near a drain ( 3 kms away but direct exposure not there).

Abhishek Jain (Mod)

What is your budget for the ACs?


hii sir, can u suggest me the best ac between Mitsubishi MSY GN18VF & DAIKIN JTKM50SRV16 1.5 TON INVERTER AC

Abhishek Jain (Mod)

Daikin JTKM50 would be better.


I live in jhansi atmosphere is dry but water is salty room 12*11 no direct sunlight but airy temp goes up to 48 Budget 35k plz suggest action for me is sansui or Hyundai or Micromax reliable ac thanks...

Abhishek Jain (Mod)

Hi Niraj,

Your room would need 1.2 tons of cooling. You can either go for 1 ton inverter AC or 1.5 ton fixed speed AC. Your usage is 300 hrs a month and I guess max you would use it for 5-6 months. Which would be about 1500-1800 hrs. In that case BEE 5 star non inverter or BEE 3 star inverter would be better. I would suggest that you go for Inverter Ac of 1 ton. You can look at these:

BrandModelAmazon LinkFlipkart Link
VOLTAS123V EY http://fkrt.it/lRj2qTuuuN

You may also get many BEE 3 star 1 ton inverter AC models in your budget of 35K. Any of those would also be good.


My daily use is 10 hours is 5 star avl in my budget


Dear Abhishek, I live in Mangalore (near sea and rains half the year). My room is 18x11x11 and it has sunlight on roof (room is on first floor of independent house). I use the AC for about 10 hours in the night only. What ton and brand do you suggest?

Abhishek Jain (Mod)

Hi Ashish,

You can use the calculator on this page to calculate the right tonnage for the AC. My guess is that you would need about 1.5 tons of cooling (only for night use). A fixed speed (non inverter) AC would be better as you are close to sea. You can look at the list of top ACs 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

Choice will depend on your usage and budget.


Abhishek ji,
I am from Gurgaon i want to purchase a inverter split AC

Can you please suggest which is best-
Blue Star-

Abhishek Jain (Mod)

I think Blue Star 3CNHW18TAFU or LG JS-Q18PWXA .... LG will have better energy efficiency and good voltage protection. Blue star will have copper condenser + good filters.


Hello good sir. I finally bought and installed JS-Q12BPXA by LG. I am only concerned about the condenser being aluminium though. I wish I'd found this article earlier than the time I purchased the AC. Anyway, I am in Andheri east near Chakala. Is corrosion a huge factor for concern in my case? Will I be seeing huge repair costs in the coming year(s)? Thank you.

Abhishek Jain (Mod)

Corrosion should not be a problem in Andheri East Chakala. It is not a problem at my house in Powai. I have used an LG model for 7 years without any problem (discarded it only because I wanted to shift to a more efficient model).


Okay, thank you, it works very well. Will even measure its consumption at some point soon.


Hi, room size is 120 sqft. But due to some reasons, the distance between indoor unit and compressor will be around 8 metres. Should I buy 1 ton or 1.5 ton? Kindly clarify.

Abhishek Jain (Mod)

Can't say. Depends on your tonnage requirement. It will be better if you use the tonnage calculator on this page.


Abhishek ji - Need ur guidance. I need to buy 3 Split AC's.
Room size: approx 120 Sq.ft.
3rd floor out of 17 storey building.
City: Mumbai
Mild sunlight in the evening
Use: 3 hrs at night + 1 hr in Day only during 3 months Summer.
Budget: 30-35K

Plz suggest.

Abhishek Jain (Mod)

1 ton AC would be absolutely fine for your room. I think Carrier Superia 5 Star (Amazon Link: http://amzn.to/2spfkbQ" rel="nofollow" target="_blank">http://amzn.to/2spfkbQ ) would be really good for you. But if you want more choices, you can look at these:

BrandModelAmazon LinkFlipkart Link
PANASONICCS-KC12RKY-1 http://fkrt.it/tFWEa!NNNN
ONIDASA125GDR http://fkrt.it/8R9~7TuuuN
VOLTAS125 CYUhttp://amzn.to/2sUaiqZhttp://fkrt.it/8RoLCTuuuN
CARRIERSuperia 5 Starhttp://amzn.to/2spfkbQ" rel="nofollow" target="_blank">http://amzn.to/2spfkbQ

Thanks Abhishek for your quick response. However, I have a couple of queries:
* All the AC's you have recommended have only 4-5 yrs Compressor warranty. Others like Samsung offer 10 yrs warranty.
* None of the AC's recommended are Inverter AC's. Is there a specific reason?

Thanks in advance for your help.

Abhishek Jain (Mod)

Here is my response:

1) Compressor of ACs usually do not fail frequently. It is the condenser that fails due to corrosion. And there again copper ones can be repaired and aluminium ones need replacement. So usually brands that use aluminium condenser given longer warranty. Samsung has all models with Aluminium condenser, LG has many models with Aluminium. And you will find most of them giving longer warranties. But then it is not that Aluminium condenser fails everywhere. I have used one LG AC for 7-8 years without any problems in Powai.

2) You can certainly go for inverter AC. Your usage of AC was quite less so I started looking at better brands in your budget. I found Carrier and Panasonic 1 ton 5 star non inverter ACs to fit in your budget and thus I picked up BEE 5 star non inverter ACs. You can get LG and Samsung inverter ACs in your budget for sure. You can look at these:

LG JS-Q12BTXD (Flipkart Link: http://fkrt.it/6CXjB!NNNN )
LG JS-Q12BPXA (Flipkart Link: http://fkrt.it/oSPr~TuuuN , Amazon Link: http://amzn.to/2s2WNq8)
LG JS-Q12AFXD (Amazon Link: http://amzn.to/2s2BXHM )
LG JS-Q12CPXD (Amazon Link: http://amzn.to/2t35uQz )
Samsung AR12MV3HEWK (Amazon Link: http://amzn.to/2s3i579 )
Whirlpool fantasia 1 ton inverter AC (Flipkart Link: http://fkrt.it/jG!3MTuuuN )


Hi Abhishek
I from Delhi and my residence is close to river and nallah. Room size is 10/10/10. East facing room with direct sunlight on roof till 1 pm. As u don't recommend a inverter AC due to pcb problem; which is the non inverter AC that you recommend if I have to run 8-10 hours daily.
My budget is max Rd.40,000.

Abhishek Jain (Mod)

I would suggest that you better go for an AC with copper condenser and corrosion protection (given you are in a corrosive environment). A BEE 5 star rated 1 ton AC from Hitachi, Panasonic or Blue Star would be a great option. Also your usage is on a bit higher side considering Delhi tariffs, so going for most efficient AC would be good. I think any of these would be really good for you:

Panasonic SC12SKY5


I need a 3 air condition for my 3bhk apartment. I am confused in between the three company hitachi, Daikin or Lg (Copper Wiring).
I am currently in Greater Noida 8th floor. Please suggest ac in budget is 30k to 35k.

Abhishek Jain (Mod)

Hello Neeraj,

At Bijli Bachao, we suggest this strategy: First find out the right tonnage that you need for you room, because undersized AC may not cool well, and in case of non inverter AC, oversized AC can significantly increase electricity bills. In inverter ACs, slight oversizing is fine. You can use the calculator on this page to get the right tonnage: http://bijlibachao.com/top-ten-appliances/best-air-conditioner-ac-window-split-hitachi-lg-carrier-samsung-electricity-consumption-tonnage-in-india.html

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.

After finding the right tonnage, you have to look at your usage of AC in hrs/year. And your budget. Because your usage determines if you need high efficiency AC or not. Secondly we try to suggest the most efficient AC based on a person's requirement (tonnage requirement) and the budget.

Let me know the right tonnage (as per the calculator) and your budget and I can suggest you some models accordingly.


I have calculated the tonnage according to my room found that 2 air condition 1.5 ton and 1 air condition 1.2 ton will be sufficient. please suggest.

Abhishek Jain (Mod)

In 1.5 ton AC if you are looking at inverter tech AC then these would fit in your budget:

LG JS-Q18CPXD (Amazon Link: http://amzn.to/2rZ5jFv ) .... Aluminium Condenser
LG JS-Q18AFXD (Amazon Link: http://amzn.to/2rYFHso ) .... Aluminium Condenser
LG JS-Q18ATXD (Amazon Link: http://amzn.to/2s76PGH ) .... Aluminium Condenser
Hyundai HS4I54.GCO-CM (Flipkart Link: http://fkrt.it/2wmwN!NNNN ) .... Copper Condenser
Mitashi MiSAC15INv20 (Flipkart Link: http://fkrt.it/2wV3C!NNNN ) .... Copper Condenser
Sansui SS4C54.WS1-CM (Flipkart LInk: http://fkrt.it/LB3MFTuuuN ) .... Copper Condenser

If you are looking for non inverter then these would fit in your budget:

BrandModelAmazon LinkFlipkart Link
ONIDASA185GDR http://fkrt.it/PugUjTuuuN
LLOYDLS19A5CX http://fkrt.it/~BBu8!NNNN
WHIRLPOOLMAGICOOL ROYAL 5S (1.5 T)http://amzn.to/2qIhaathttp://fkrt.it/ZNIrGTuuuN

For 1.2 ton you can look at these:

BrandModelAmazon LinkFlipkart Link
VOLTAS155 CYAhttp://amzn.to/2trBaQVhttp://fkrt.it/3wdsb!NNNN

hi abishek,

i found your replies more helpful.i am currently in chennai..we are looking for a inverter ac to my bed room which is 12*10*10..it is medium exposure to sunlight.
we use ac in 7-8 hrs/day
7 months in year
we would like to buy a inverter ac with R410A gas,1-1.5 ton, copper condenser with anti corrosion coating, evaporator coil clean mode is there means its better,bee 4 star rating, lifetime ofd the ac should come minmum 5 year to max 7 year, budget is 30k to 39k...please please suggest your best faster

Abhishek Jain (Mod)

Hi Priyanka,

I think 1 ton inverter AC would be good enough for your room. You can look at these:

The best you can get in your budget: Bluestar 5CNHW12PAFU (Amazon Link: http://amzn.to/2tVKbOp ) ... this is BEE 5 star model
or else:

LG BSA12MAYD (Flipkart Link: http://fkrt.it/YNf1g!NNNN ) this is BEE 4 star, and I think it has copper but I am not 100% sure.
Carrier CACI12SU4I3 (Amazon Link: http://amzn.to/2sxqtdF , Flipkart Link: http://fkrt.it/LBATmTuuuN )


Hi Sir, Plz suggest me an split ac for my room size 12*12*11(LBH) in meerut. direct sunlight on roof and wall. uses aprox 10 hrs. my choice is copper condenser and budget is aprox 30 to 35 k. plz suggest me ur expert opinion. thnx waiting ur kind reply.

Abhishek Jain (Mod)

Because of the direct sunlight on roof and wall, your room needs about 1.8 tons of cooling. If your usage is mostly at night then you can also go for 1.5 ton inverter AC. LG inverter ACs of 1.5 ton would be the best bet in your budget. You can look at these:

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

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

If you find them expensive then you can also look at these models (from less popular brands):

Hyundai HS4I54.GCO-CM (Flipkart Link: http://fkrt.it/2wmwN!NNNN )
Mitashi MiSAC15INv20 (Flipkart Link: http://fkrt.it/2wV3C!NNNN )
Sansui SS4C54.WS1-CM (Flipkart LInk: http://fkrt.it/LB3MFTuuuN )


Thnq so much ur kind reply Sir................


Sir one more question, i respect ur expert opinion. but plz do compare between Carrier 1.5 Ton 3 Star Split AC (Esko, White) and Voltas 1.5 Ton 5 Star Split AC (185JY, White). and what is the difference between copper condenser and copper tube. and which u suggest me LG Acs company giving me 10 year warrenty for compressor and other giving us 5 year........?

Abhishek Jain (Mod)

Voltas 5 star AC will save more electricity for you because it is a 5 star rated AC. 3 Star AC will consume more electricity so you will get higher electricity bills. If you compare Carrier 5 star with Voltas 5 star, I would say Carrier is a better brand and you can go for it. But if you compare Carrier 3 star with VOltas 5 star, I would say Voltas 5 star.

Condenser is the coil inside the outdoor unit of the AC, whereas copper tube is something that is used to connect indoor unit with outdoor unit. Two are very different.

LG uses aluminium for most of its ACs. They also have a few copper models. Also compressor is something that usually does not break down. If a brand gives warranty on condenser, then it is something really worth. But otherwise, LG is a great brand.


Hi Abhishek,
I live in Chennai. My room size of 10x12. Am planning to buy LG AC with dual inverter. Can you please advise whether LG is best option for me. Otherwise can you please suggest brand model.
Budget 35k to 40k.
Usage: 10hr at max.

Abhishek Jain (Mod)

1 ton inverter AC would be more than enough for you. In your budget you can easily get a BEE 5 star rated inverter AC from Blue Star 5CNHW12PAFU (Amazon Link: http://amzn.to/2sO1MKF ). It will be a great option.


Hi Abhishek,
I am reading your review quite often and its very helpful. Can you please suggest which AC is best for my room. I lived in Jaipur. Room size is ( L x B X H) 11 x 10 x 10.5 and its on 4th floor of 12th story building. No direct sunlight on room. Does 1 ton ac is good . Budget is maximum 38 k. I have shortlisted LG JSQ12AUXA, BLUESTAR 3CNHW12CAFU and Mitsubishi MSH/HK13VA. please suggest best among three all would you like to suggest any other batter option? How about Hitachi and Daikin

Abhishek Jain (Mod)

Hi Kunal,

1 ton should be fine for your room. I think Mitsubishi MSH/HK13VA would be a great model. It would be the best option if you get it in your budget.


Good to read some honest & genuine advice encompassing all brands.
I have a few questions.
1) Do higher star rating acs really save so much electricity/money that the huge jump in base price of ac is worth it.
Using the calculator 1.5T ac will cost ₹21.6k per year to run if 3 star non inverter and ₹18.8k per year if Inverter 3 star. I entered 16 hours daily operation. 3-4 thousand per year seems paltry. Only 5 star inverter ac has 7000 less running cost, and certainly costs lot more relatively.
2) How good an idea is it to buy some obscure but good looking brands like Mitashi, Sansui(Japanese but owned by Chinese), Hyundai etc

Abhishek Jain (Mod)

Hi Prateek,

All depends on the price at which you purchase a model, its energy efficiency and the cost of electricity in your area. The calculator just gives a rough idea. But then you have to look at models, For e.g. if you are planning to buy a BEE 3 star rated inverter AC of 1.5 ton, then you can get an LG model with ISEER of 3.89 for 35K as well. While a Hitachi BEE 5 star inverter of ISEER of 5.15 would cost 60K. The difference is huge, however one fact to consider here is that the price also includes brand premium (in case of Hitachi). Another example would be if you look at Hitachi BEE 3 star rated inverter AC of 1.5 ton with ISEER of 3.99, it costs about 44K. Whereas Blue Star P series 1.5 ton BEE 5 star rated inverter AC with ISEER of 4.75 would cost only 49K. And Blue Star is also a great brand (Indian though).

So real ROI calculation can be done only when you are comparing two models as pricing includes a lot of things. You can even get a 1.5 ton inverter AC of Hyundai or Sansui for 30K. Which are efficient too. But difficult to say anything about their durability and derating.

The calculator just takes the median value (most likely value). But higher star ratings does save electricity/money. Especially if you live in a place like Mumbai where electricity costs are as high as Rs11-12 per unit.


Does Panasonic have 1.5 ton inverter AC with 5 star or 3 star energy efficiency ratings? And are these with copper condenser? Till what higher temperature do ​ Panasonic ACs work?

Abhishek Jain (Mod)

Panasonic does have 5 star and 3 star inverter ACs. And their ACs are with copper condenser. However, they have not mentioned operating temperature on the specs.


Hey Abhishek,
I am from north delhi. I want to buy a Ac for my room which is 144 sq. Ft.
That room gets direct sunlight after after 11. West facing wall. My daily usage could be maximum 10 hrs. Each.
Actually the problem is my home is near the drain area almost , so i guess there's a corrosion problem , so plz suggest me the better Ac which can run without any issue..
Thank you!

Abhishek Jain (Mod)

You should go for BEE 5 star rated 1.5 ton AC from Panasonic, Blue Star or Hitachi. You can look at these:

BrandModelAmazon LinkFlipkart Link
HITACHIRAU518MWD http://fkrt.it/dpC1ZTuuuN

Hi Abhishek,
I am from Kanpur and my room size is aprox.190 sqft.
So i want to purchase 2 AC's.
One room gets direct sunlight till 4pm( since East facing).
Another is not getting any sort of sunlight.
My daily usage will be about 10 hours each.
My budget would be around 40-45k(if found better AC no constrain on price)
So please suggest some good easy to maintain and energy efficient AC

Abhishek Jain (Mod)

Hi Swapnil,

You need 2 ton ACs for both the rooms. But a true 2 ton would be required. Most brands market AC as 2 ton but then in reality they are 1.7 or 1.8 ton. In your budget you will get BEE 3 star rated non inverter 2 ton ACs. It will be better if you go for a BEE 4 or 5 star rated non inverter 2 ton ACs. You can look at these:

Hitachi RAU524AVD (Amazon Link: http://amzn.to/2qSnNbr )
Onida SA245GZE
Hitachi RAU423HWDD (Flipkart Link: http://fkrt.it/zDUDpTuuuN )

These are true 2 ton ACs. Mitsubishi Electric also has some really good 2 ton ACs, but then they are expensive (above 55K).


अभिषेक जी, मेरी आवश्यकता अनुसार मुझे 1.5टन का 5स्टार इनवर्टर एसी ,खरीदना है,जोकि कॉपर कंडेंसर ,इवापोरेटर,वाला एवं कम रखरखाव ,कम बिजली खपत वाला,अच्छी किस्म का हो,बजट कोई issue नही है।

Abhishek Jain (Mod)

Aap in ACs ko dekh sakte hain:

1) Hitachi Kashikoi 5400i
2) Blue Star 5CNHW18PAFU (Amazon Link: http://amzn.to/2rBd3LB ) ... Blue Star ka feedback kaafi achcha hai.


Hi Abhishek I am from Kolkata .I want to buy 1.5 ton inverter ac copper based ,anti errosion technique,auto clean mode,hasslefree ac.There is voltage fluctuation problem in our area . Budget 45000.

Abhishek Jain (Mod)

You can look at these:

Hitachi RSB318IAEA
Hitachi RSD318EAEA
Hitachi RSH318EAEA (Amazon Link: http://amzn.to/2oKrNrZ )
Panasonic PS18SKY
LG JS-Q18SUXD (Amazon Link: http://amzn.to/2oMG2Le )
LG JS-Q18AUXA (Amazon Link: http://amzn.to/2oMjWqB )
Blue Star 3CNHW18TAFU
Voltas 183V EY (Flipkart Link: http://fkrt.it/j34ZwTuuuN )
Voltas 183V IY (Amazon Link: http://amzn.to/2r23ghH )
Blue Star 3CNHW18NAFU

These are all copper based.


Hi Team,
I am living at TOP Floor ( Roof directly exposed to sunlight), one side wall gets expose of direct sunlight. Because of Delhi summer my Bed room become living, dining room as i have one one AC in my bed room. The AC installed in my bed room is JTKM50SRV16 normally used 12-16hour/day.
Now i wanted to use my living room for that i am looking for another New AC for approx usage of 8Hours. Hence looking for 1.5T AC consumes less power as Daikin JTKM50 consumes but does not want to invest same amount. Some of the below AC models on which venders are offering good discount please let me know these are good AC models in terms of product and power consumption or please advise alternate models.
Voltas 1.5 Ton Inverter AC 18VEY; 18VCY; 183VDYB; 183VEY; 183VIY; 183VSY
Godrej 1.5 Ton - GSC 18 USZ5; GSC 18 UPZ5
Hitachi 1.5 Ton Inverter AC - WAZA 3200i - RSD317EAEA, 1.5 Ton AC -Non-Inverter TOUSHI - RAU518KWD

I would prefer to use 1.5T Window AC but as i know nun the window AC consumes power similar to Split.

Please help me to find out best suited AC as per my present conviction and requirements.

Abhishek Jain (Mod)

Daikin JTKM50 is a BEE 5 star rated AC while all the models you have listed are BEE 3 star ones. They would not be as energy efficient as Daikin JTKM50. You may want to consider Blue Star 5CNHW18PAFU (Amazon Link: http://amzn.to/2qH0ujb ) .... it is very close in energy efficiency to JTKM50 but not very expensive. In BEE 3 star Hitachi Toushi or Waza would be most energy efficient (within BEE 3 star rated ones).

nitish ch ghosh

how is alloy condenser compared to copper coil? which one is better?

Abhishek Jain (Mod)

Alloy is aluminium alloy and the comparison of Aluminium and copper is given above on this page.


please tell me about 1.0T Voltas EU 12 V MY-Cool model of split AC ... comparing with 123 VEY voltas AC

Abhishek Jain (Mod)

Any new AC from Voltas will have star rating in the model number so 123 VEY is a new inverter AC as it has 3 in the model number which is its star rating. Old models like 12V MY do not have star rating. It is better to go for latest model so 123 VEY would be better.


i am in delhi, gone through ur artical and various comments, but still not able to get a glimps of which ac to buy. my room size is approx.100sq ft , usage is 10hrs and 7 months, want to buy a split ac , budget no contraint, please help

Abhishek Jain (Mod)

Hi Akhil,

You should try the calculator on the website. It can give you lot of information. If your room does not have ceiling exposed to sun and south/west walls then 1 ton would be fine. Else if ceiling is hot and walls are also hot then your room would need 1.2 tons of cooling. In either case 1 ton inverter AC would be fine. Your usage is also quite high so as it is inverter AC would be better. Going for BEE 4 star rated inverter AC or above would be better. You can look at these ACs:

BrandModelStar RatingAmazon LinkFlipkart Link
LGBSA12BEYD4 http://fkrt.it/wYDG7!NNNN
LGBSA12MAYD4 http://fkrt.it/BptCkTuuuN
Saibal Banerjee

Hello Abhishek,
I seek your advice in deciding on a split AC for my
1) groundfloor bedroom in south Kolkata area.
2) The area is quite humid though pollution is not a major problem.
3) My budget is around 30k.
4) Bedroom size is 144sqft and it doesnt get any direct sunlight but is quite airy.

Thank you.

Abhishek Jain (Mod)

Hi Saibal,

Your room would need about 1.2 tons of cooling. So you can either go for 1 ton inverter AC or 1.2 ton fixed speed AC. You can look at these ACs:

Voltas 123VEY/VEYA/VLY (Flipkart Link: http://fkrt.it/NCDYVTuuuN )
LG JS-Q12BTXD (Flipkart Link: http://fkrt.it/uUiSv!NNNN )
LG JS-Q12AFXD (Amazon Link: http://amzn.to/2qQ2pSR )
LG JS-Q12CPXD (Amazon Link: http://amzn.to/2qK0AXd )
Samsung AR12MV3HEWK (Amazon Link: http://amzn.to/2qK1t2h )

These would be more electricity saving. Otherwise you can look at these:

Hitachi RAU514HWDD (Amazon Link: http://amzn.to/2qJVjz5 , Flipkart Link: http://fkrt.it/uFWql!NNNN )
Voltas 155 CY (Amazon Link:http://amzn.to/2rbXWLw , Flipkart Link: http://fkrt.it/NCkAETuuuN )

These are 1.2 ton AC which will be good for your room.


Hi, I recently bought Hitachi 1.2 Ton 5 Star ac, but the problem is that it uses R22 gas. I heard that R22 gas is going to be banned after 2030, so can we replace it other gases after 2030? Thank you

Abhishek Jain (Mod)

Hi Madhu,

I am not sure about it. It will depend on the design of the AC. Also I am sure by that time solutions will come out because even now more than 60% of the ACs in market use R22.


Hi Abhishek,
I am planning to buy an AC for my bed room at ground floor. My Budget is below 35k.
Kindly clarify my queries.
1. My location is not much polluted but mostly humid (sea shore is 23 kms away). Is it considered as a corrosive area?
2. Which one I select - Inverter or non inverter?
3. If Inverter one, then which star ratting is most economical for my use? (Required: 1 ton., Usage: 7-8hrs/ day 8-9 months/year)
4. Which brand? (On the basis of reliability and after sales services in Kerala)
Thank you

Abhishek Jain (Mod)

Hi Amin,

Here is my response:

1) Your area does not sound corrosive.

2) If you want 1 ton, then inverter AC would be good.

3) BEE 4 star rated would be good, but then I think you will get BEE 3 star rated inverter AC in your budget.

4) Cannot comment which brand has better service in kerala. But otherwise I think Blue Star would be really good. You can check Blue Star 3CNHW12CAFU (Amazon Link: http://amzn.to/2oxKzmN ) or LG models (Copper models with SU, AU or TU in the name) would also be good. Hitachi RAU312EWEAS available on Flipkart: http://fkrt.it/Ov00j!NNNN is also a very good choice.


Hi Abhishek,

I am looking to buy a 5 star 1.5 ton split inverter ac with copper condenser which does not use R22 gas. Daikin appears to be good but is very expensive. Could you suggest cheaper alternate brands?

My usage would be limited to about 8 hours at night in a sheltered room over a period 4 months in Noida. Would you suggest that I look for a 3 star ac as opposed to a 5 star ac? Please suggest some successful 3 star brands as well.

Abhishek Jain (Mod)

Hi Nia,

Bluestar has several good models with copper condenser, corrosion protection and eco friendly gas and not very expensive as well. You can check Blue Star 5CNHW18PAFU (Amazon Link: http://amzn.to/2qsd2e7 ). I think it is a very good model.

Your usage is not very high so BEE 3 star models would also be fine. You can check these:

Hitachi RSB318IAEA
Hitachi RSD318EAEA
Hitachi RSH318EAEA (Amazon Link: http://amzn.to/2oKrNrZ )
Panasonic PS18SKY
LG JS-Q18SUXD (Amazon Link: http://amzn.to/2oMG2Le )

These are all copper models with high energy efficiency among all BEE 3 star rated models.


Hello Sir, I want to buy 1 ton AC for 10' X 10' room near to Airport in Kolkata. It will be used for 5-6 daily at max. As per aforementioned calculator I would like to go for Non inverter AC. Can you please suggest a few brand as well as model.

Abhishek Jain (Mod)

What is your budget for the AC?


under 30K

Abhishek Jain (Mod)

Hi Riya,

If you are looking for high energy efficiency (low electricity consumption) model, then these are some BEE 5 star rated models:

Lloyd LS13A5LK (Flipkart Link: http://fkrt.it/SwmOHTuuuN ) or LS13A5LX (Flipkart Link: http://fkrt.it/mBDbS!NNNN )
Onida SA125CHE or SA125PRL or SA125SGS
Voltas 125 CYE (Amazon Link: http://amzn.to/2nJNm8W , Flipkart Link: http://fkrt.it/SuZRFTuuuN ) or 125 PY

Otherwise if you are looking at premium brands then you may look at these:

Hitachi RAU312HWDD (Amazon Link: http://amzn.to/2o87PaV , Flipkart Link: http://fkrt.it/ZoCwETuuuN )

Hitachi RAU312KWD (Amazon Link: http://amzn.to/2obdcGW , Flipkart Link: http://fkrt.it/i6bE!!NNNN )

Carrier Octra 3 Star (Amazon Link: http://amzn.to/2ohgcOG )

Carrier Superia 3 Star (Amazon Link: http://amzn.to/2mQ7gD4 )

Daikin DTC35 (Amazon Link: http://amzn.to/2ob9eOn , Flipkart Link: http://fkrt.it/i6U0P!NNNN )

Mitsubishi Electric MS-HK13VA (Amazon Link: http://amzn.to/2ohkSnV )


Hi Abhishek Sir,
I bought Daikin JTKM35 1.5 Ton being the best ISEER after checking form your site.
But it's PCB turns out to be faulty, now i am hearing from Daikin engineers themselves that Daikin Invertor ACs have PCB issues and this is on considerable cost?
I request you to kindly please guide me so all brand inverter ACs have this type of durability issues?
I have to buy one more AC. Should I really go for invertor AC. Also could you please tell which is/are best AC in market in terms of both ISEER and durability Budget no issue. 1.5 Ton AC I need.


Hi Sir,
I have read issues in PCB due to ant, insects etc also. And also my transfer in job can be in any metro. Chennai is one of them.
Could you please guide in non-inverter 1.5 ton AC which is the best brand which is durable, fit and forget type. and simultaneously be competitive in terms of energy efficiency not very far than the best non-inverter.
JTKM 50 - 744 annual units - inverter
GODREJ-GSC 18 FG 8 MOG -3.91 EER - non -inverter
I was going through sites for 5 star non inverter AC
O General ASGA18FTTA - 3.51 EER how is it . Please tell other durable , efficient brand models in 1.5 ton.

Abhishek Jain (Mod)

Hi Lalit,

I have not heard of any incidents of ants/insects damaging PCB. However, it is an electronic component, and anything that can damage any electronics, can damage the PCB.

The best of non inverter AC will at best be equivalent to a BEE 3 star rated inverter AC. Because I have not seen any model having EER greater than 3.9 which would be equivalent to BEE 3 star rated inverter AC. Not sure if you have Mitsubishi Heavy Industries dealer in your area, but if you have then you can check MHI SRK 20 CSS-S6 (Link: http://www.iaplgroup.com/srk20css-s6_srk25css-s6.php )

Abhishek Jain (Mod)

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).

Do you live in a corrosive area? Or is the power quality bad in your area? If yes, then PCB of any inverter AC can fail.


i am from Jaipur, Rajasthan. I would like to purchase a 1.5 ton split AC for a room (about 200 sq ft) with no direct sunlight or windows. Avg people in room will 3-5. We will use AC for around 6-8 hours and for about 6-7 months. Can you suggest some good ACs for this condition. Please feel free to suggest some inverter split ACs if that will be better to buy and is going to be cost effective in long term. I would really apprectiate if you could share links to the ACs and my budget is around 30-32k.
P.S. Last i checked your sizing calculator is not working. Please look into it.


Abhishek Jain (Mod)

Hi Piyush,

The calculator is working. You have to select the city and also input the size. Usually the electricity consumption and costs details do not appear if the tonnage is more than 2.5. But it does tell the tonnage.

Also 1.5 ton would be undersized for a 200 Sq ft room in Jaipur. It will not col the room completely in peak summer day time. It will just cool the area close to the AC. You would be able to feel some hot pockets away from the AC in peak summer day time.

Also 30-32K is extremely low for a 1.5 ton inverter AC from a good brand. The best you can get is from brands that are very low in popularity. You can get these in 30-32K budget:

Hyundai HS4I54.GCO-CM (Flipkart Link: http://fkrt.it/2wmwN!NNNN )
Mitashi MiSAC15INv20 (Flipkart Link: http://fkrt.it/2wV3C!NNNN )
Sansui SS4C54.WS1-CM (Flipkart LInk: http://fkrt.it/LB3MFTuuuN )

Also it is not advisable to undersize inverter AC as during summer day time it will always run at peak capacity and at peak capacity the efficiency of inverter AC is quite low. So you may not get desired electricity savings.


I am from Coimbatore. My room is west facing, directly opposite to electric transformer. Has dimensions 16x10x10 (out of which 2' is fully covered by wardrobe).

I would like to know the below details:
1. LG dual inverter models use alloy condenser. Is it same as aluminium?
2. Will there be any effect of transformer heat to the outdoor unit?
3. I have short-listed these models. Please suggest the best one:

Voltas 1.5 Ton 5 Star Split AC - White (185JY, Aluminium Condenser)
Voltas 1.5 Ton 5 Star Split AC (Aluminium, 185 EYR, Wine Red)
Voltas 1.5 Ton 3 Star Split AC (Copper, 183 JY, White)
LG 1.5 Ton 3 Star Dual Inverter Split AC (Alloy, JS-Q18CPXD, White)

Abhishek Jain (Mod)

Hi Kumar,

Firstly, I have not checked the right tonnage for you and you can do that using the calculator on this page. To your questions, here is my response:

1) Alloy is aluminium alloy. So yes it is same as aluminium condenser. LG has models with copper as well, the ones with SU, AU and TU in the name.

2) Every AC has a operating temperature. If the temperature of air surrounding the outdoor unit goes beyond this operating temperature, then the AC stops working. I am not sure how close is the transformer to your outdoor unit. But if the temperature increases beyond operating temperature, it will stop working.

3) Among all the models you have selected, I would suggest LG 1.5 Ton 3 Star Dual Inverter Split AC (Alloy, JS-Q18CPXD, White).


Thanks for the response. Your website is immensely helpful.

As per the calculation, 1.5 ton is recommended. Hence, went for 1.5 ton models.

Transformer is just in the opposite side of the 23' road. Approx distance from the room would be around 25-30'.

Abhishek Jain (Mod)

Hi Kumar,

LG BEE 3 star inverter AC will certainly be the best for you. Before installing just make sure that you do not feel too hot in front of the transformer (as compared to the air from other windows where there is no transformer). Or try installing the outdoor unit at some place where it does not get direct heat from the transformer.


Hi i recently purchased Samsung model AC 1.5 Ton Inverter type Model No. AR18MV3UFMCNNA. The show room person confirmed that this model belongs to copper coil. But while checking in the google i wouldn't able to find whether it is copper or aluminium. While checking Samsung customer he confirmed it is aluminium and i have contacted show room person regarding this but they said it is copper. I bit confused i would like to know your advice what i have to do and confirm physically to check whether copper or aluminium.

Abhishek Jain (Mod)


All Samsung models are aluminium. Samsung does not make copper models.


I would like to purchase 1ton split AC, but still I am confused to buy because I stay near to music river at Hyderabad, the area is polluted which is suitable copper or aluminum condenser AC, but dealers are advising to buy LG aluminum but as per ur report copper is good. Please suggest me good one.

Abhishek Jain (Mod)

If you live close to a river and in a highly polluted area (corrosive area) then it will be better to go for a fixed speed (non inverter) copper condenser AC with blue fin corrosion protection. Some brands that would be good are Blue Star, Panasonic, Hitachi.


how you see brands using "single row copper coil" vs "double row copper coil" in condenser? exam: carrier vs panasonic/hitachi.

Also carrier using blue fins on evaporator at IDU , but not on condenser at ODU! other brands like daikin, pana., hitachi using only on condenser , not on evaporator....bliuestar using on both :)

wat difference it makes technically? cost viz we could sense.

Abhishek Jain (Mod)

I would not worry too much about single row vs double row, as long as energy efficiency is good and cooling capacity is high. Also ODUs are the ones that fail mostly because they are outside in harsh environment. IDUs have less failure cases.


Sir,I want to buy an inverter 5 * rated AC.Room size is 10*10sft,low cost/maintainece,high performance. Which brand should I go for,pl. Info. Thank u, Regards,Chary

Abhishek Jain (Mod)

I think Samsung and Electrolux would have the cheapest 1 ton inverter AC of BEE 5 star rating.


I live in an area in New Delhi where gas leakage occurs due to moisture from a nearby drain. My requirement is 1 ton AC. I heard that Panasonic with Blue Fin Condenser (Model No.YC12SKY4) is good choice. Kindly guide me. With regards

Abhishek Jain (Mod)

Bluestar and Panasonic are the brands that provide solid corrosion protection for the outdoor units. So yes I think the choice of Panasonic is good.

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