Top 12 Best Inverter ACs in India

The heat and the humidity in India make it unbearable to survive without an air conditioner. One cannot have a peaceful sleep without cooling down the temperature of the room.

But, some people are really afraid to turn on the air conditioner because of the high electricity bills they have to pay after the month. Therefore, companies nowadays are launching air conditioners which help you achieve a pleasant temperature but are also energy efficient.

Inverter air conditioners are the newest invention to help people deal with this problem. There are many advantages of the inverter air conditioners over the conventional air conditioners.

  • Firstly, the inverter air conditioners consume much less power than conventional air conditioners. This is because unlike in conventional air conditioners where the compressor runs at its peak power all the time, Inverter AC draws only draw that much power which is actually required to get a stable and comfortable temperature inside a room at a certain time. And hence, consumes a lot less electricity!
  • They help to maintain a more constant and accurate room temperature by not leaving the room too cold or too hot. It promotes efficient cooling without the worry of voltage fluctuations.
  • Modern Inverter split ACs are equipped with a lot of smart features which leads to improved cooling and low power consumption. From 7 stage filtration technology to dual inverter technology, sleep mode, timer, auto mode, leak detector and what not!
  • It is also very eco-friendly because of the use of better and newer refrigerants. It also comes in various sizes, shapes and designs so as to suit your home décor be it small or large rooms.

But it is inevitable that you will get confused if you are in the lookout for an AC for your own home. There are so many brands which are constantly churning out new models with improved features and build quality etc.  

There are many things which you should keep in mind while buying an air conditioner like tonnage, size, warranty, cooling capacity, power consumption etc. Hence, we have a detailed “Buying Guide” on all the things you should consider before spending your hard earned money on an AC.

Also we have a comprehensive product list of 12 Best Inverter AC in India provided below will surely help you buy your desired air conditioner.

12 Best Inverter ACs in India

Best of Inverter ACsCapacity (Ton)BEE RatingsAnnual Power ConsumptionWarranty
Sanyo Inverter Split AC 1 Ton5 Star597.37 Units Check the Price
LG Inverter Split AC1 Ton3 star685 Units Check the Price
Inverter Split AC
1 Ton3 star1060 Units Check the Price
LG Inverter Split AC1.5 Ton5 Star835.05 Units Check the Price
Voltas Inverter Split AC 1.5 Ton3 Star1008 Units Check the Price
Sanyo Inverter Split AC1.5 Ton5 Star857.89 Units Check the Price
Carrier Inverter Split AC1.5 Ton5 Star871.07 Units Check the Price
AmazonBasics Inverter Split AC 1.5 Ton3 Star1026 Units Check the Price
Daikin Inverter Split AC1.5 Ton4 Star928 Units Check the Price
Hitachi Inverter Split AC1.5 Ton5 Star869.21 Units Check the Price
LG Inverter Split AC2 Ton3 Star1291.36 Units Check the Price
Godrej Inverter Split AC 2 Ton5 Star1024.36 Units Check the Price

Best Inverter AC Reviews in India

1 ton Inverter AC – Best suitable for small rooms

1.5 ton Inverter AC – Best suitable for medium rooms

2 ton Inverter ACBest suitable for large rooms

Best 1 Ton Inverter AC in India

1-ton Inverter ACs are smaller in size and capacity. They are good for rooms which are less than 110 sq foot. Typically your kid’s room, small-sized bedrooms or study rooms are ideal for a 1-ton Inverter AC.

1. Sanyo SI/SO-10T5SCIA 1-Ton 5-star Inverter Split AC 

Sanyo SI/SO-10T5SCIA 1-Ton 5-star Inverter Split AC Looking for a budget inverter AC with 5-star energy ratings? Then the Sanyo 1 ton inverter A.C is the one for you. The Japanese brand has made an excellent 1-ton inverter AC with all the latest features at a minimal price.

It is our best pick on the list because of so many reasons. It is ISEER 4.6 star rated, the most energy-efficient 1-ton inverter A.C in the market. It cools well and fast. On top of it, it has all the premium features like copper condenser, air-filters, self-diagnosis and many more.

Best Features: Copper condenser, Anti-dust filters, Self-diagnosis, Auto-restart, Backlit remote, Anticorrosive-fins, Sleep function, Timer function, Eco-mode, R32 refrigerant.

Power Consumption: It consumes around 597.37 units a year.

Products inside the Package: Indoor unit, Outdoor unit, Interconnecting Pipe, 2AAA Batteries, Remote, Assembly Manual, Warranty details.

Warranty and Service:

Now, Sanyo has 400+ service centers across India and some in rural areas. Being a new brand their after-sales service is really good. The only concern is the installation charge. Many customers have mentioned that their charges are too high. For any kind information, you can chat live with Sanyo customer care. Or, call at 1-800-419-5088. Or, send an email at They are available 24*7!


  • 5-star energy ratings
  • Inexpensive
  • 100% copper condenser
  • Anti-dust filters
  • Self-diagnosis
  • Fast cooling


  • High installation charge


It is ideal for a room which is less than 110 sq feet. This little champ does an excellent job at cooling. Saving energy is at its best! Along with other advanced features like anti-dust filters, dehumidifier, and self –diagnosis, it takes the crown of the best 1-ton inverter AC on the list.

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2. LG KS-Q12YNXA 1-Ton 3-star Inverter Split AC

LG KS-Q12YNXA 1-Ton 3-star Inverter Split ACThe next 1-ton inverter AC is from L.G. And you know it’s a premium brand. It’s a brilliant model with solid performance and superior quality. If you can extend your budget a bit, you can go with L.G.

Comparing them in terms of quality and reliability, L.G is superior. But talking about their price and value Sanyo is the clear winner. L.G comes 2nd on the list is not because it is less efficient at cooling but because it is costlier and also has only 3 BEE star ratings.

Best Features: Dual Inverter Compressor, High-ambient Cooling, Anti-corrosive copper compressor, Stabilizer free operation, Energy Saving Mode, Low Refrigerant Detector, HD air-filter, Dehumidifier, Sleep Mode and Timer.

Power Consumption: 685.49 units

Products inside the Package: 1 indoor unit, 1 outdoor unit, 2 batteries, 1 connecting wire, remote, installation plate, installation tape, user manual, warranty card

Warranty and Service: 1-year comprehensive warranty on product and the condenser and 10 years on the compressor.

Talking about LG, they have a massive after-sales service network across many cities. They send professional engineers who will take care of the installation. The reviews section of this particular model has no big complaint about L.G service and instalment. For any product related info, you can call them at 1800-315-9999 or 1800-180-9999.  


  • Dual inverter compressor
  • Anti-corrosive copper condenser
  • Micro dust-filters
  • High-ambient cooling
  • Solid build quality
  • Stabilizer-free operation


  • Consumes more energy
  • Expensive model


You can never go wrong with an L.G product. With dual inverter compressor, high-ambient cooling, and micro-dust filters, it is a full-proof air conditioner for your home. If you like L.G products or if you have a brand fascination you can go with L.G with your eyes closed. Don’t forget that you will shed some extra bucks for it.

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3. Samsung AR12NV3HLTR 1-Ton 3-Star Inverter Split AC

Samsung AR12NV3HLTR 1-Ton 3-Star Inverter Split ACWhen it is Samsung, you know you are getting good quality and reliability. It’s a product of great features, low price, and efficient cooling. It is the best buy for a bedroom or a small-sized living room as it looks extraordinary.

It comes 3rd on the list and not 2nd is mainly for two reasons. Firstly, it has aluminium condenser, which is not as efficient as the copper ones. And secondly, power consumption is much higher compared to other 1-ton inverter ACs.

Best Features: Triple inverter Technology, Single user mode, In-built Stabilizer, Corrosion-resistant Large Fins, Moisture Control, Noise Free Operation, Sleep Mode and Timer

Power Consumptions: 1060 Watt

Products inside the Package: 1 indoor unit, 1 outdoor unit, interconnecting pipe, 1 remote, 3 user manuals, 1 warranty card.

Warranty and Service: 10 years on the compressor and 5 years on the condenser

Good news for you! Samsung has the widest service network so far, across India. They are now doing onsite servicing with special service vans. These vans come with all types of equipment along with professional engineers for on-spot solution. For any product or warranty related details, you can call Samsung 1800-130-4554 or email them at


  • Triple Inverter Technology
  • In-built stabilizer
  • Moisture Control
  • Completely noise-free
  • Moisture Control
  • Great looks
  • Best after-sales service


  • High energy consumption
  • Aluminium condenser


You will never have any complaints about its performance or quality. The triple inverter technology, moisture control, in-built stabilizer, and sleep mode, etc. takes good care of your needs! Moreover, the after-sales service is at your fingertips. As far as power consumption is concerned, you can manage it by simply using it less.

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Best 1.5 Ton Inverter AC in India

If your room falls between 100-200 sq feet, you need a 1.5 Ton Inverter AC. Your medium-sized living room or large bedrooms require a 1.5 Ton Inverter AC.

4. LG KS-Q18YNZA 1.5-Ton 5-Star Inverter Split AC

LG KS-Q18YNZA 1.5-Ton 5-Star Inverter Split ACWithout wasting any of your time, it is the best 1.5 ton AC in the Indian market. With 5-star energy ratings, dual inverter compressor, gold fin copper condenser, micro-dust filters, and auto-clean facility, it is exactly what an inverter AC should be like.

Energy consumptions are significantly low with just 835.05 units a year. All its operations are stabilizer free. And this is good for high-ambient temperatures as well as in monsoons with high humidity.  So, regardless of where you live you can trust this L.G inverter AC to offer you utmost comfort.

Features: Dual Inverter Compressor, Anti-corrosive Copper Condenser with Gold Fins, Himalaya Cool, Micro-dust Filters, Dehumidifier, Auto-cleaning/Energy Saving/Sleep and Timer modes, In-built Stabilizer, and R32 Environment-friendly Refrigerant

Power Consumption: 835.05 units

Products Inside the Package: 1 indoor unit, 1 outdoor unit, 2 batteries, 1 connecting wire, remote, installation plate, installation tape, user manual, warranty card

Warranty and Service: 1-year comprehensive warranty on the product and 10 years on the compressor.

LG have massive after-sales service network across India. They send expert engineers who will take care of the installation. The majority of the reviews were really good. Apart from a few installation charge and delay issues, there is no major complains about this model. For any product related info, you can call them at 1800-315-9999 or 1800-180-9999.  


  • 5-star energy ratings
  • Dual inverter compressor
  • Anti-corrosive copper condenser
  • High-ambient cooling
  • Auto-cleaning
  • Monsoon comfort
  • Completely noise-free
  • 1-year comprehensive warranty on the product


  • Poor installation is some areas


The L.G 1.5 ton inverter AC is a complete package. It is fast at cooling; it works in high-ambient temperatures and comes with the longest warranty period. It is so energy efficient that you can use it for 8-10 hours a day even in the hottest days of summers. If you are ready to pay for the best quality 5-star inverter AC you should go with L.G.

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5. Voltas 173V JZJ (R32) 1.4-Ton 3-Star Inverter Split AC 

Voltas 173V JZJ (R32) 1.4-Ton 3-Star Inverter Split AC If you don’t want to spend so much on an AC, here is an alternative option for you, the Voltas 1.4 ton 3-star inverter AC. It also comes with a copper condenser, high-ambient cooling, fast cooling, air filters, etc. more or less similar to that of L.G. but at a much affordable price range.

The reason it comes 2nd after L.G is because it is not a 5-star BEE rated AC. Your power consumption and monthly electricity bills will be a bit higher with Voltas. 

Features: Copper Condenser, High-ambient Cooling, Air-Purifier, Air-filters, In-built Stabilizer, Environment-friendly Refrigerant.

Power Consumption: 1008.2 units

Products Included inside the Package: 1 Indoor Unit, 1 Outdoor Unit, 1 connecting Pipe, Remote and User Manual

Warranty and Service: 1-year warranty on the product, 5 years on the compressor and 1 year on the condenser

Competing with other brands like Samsung, L.G, this Indian brand has also improved a lot on their customer service. About this particular model, there are no major issues regarding the performance. The installation process is also hassle-free and on time. However, a few customers have mentioned high installation charges. In case of any problems, you can call Voltas AC customer support team at 9650694555/ 1860599455 or Emil at They are available 24*7!


  • Copper Condenser
  • Fast Cooling
  • High-ambient Cooling
  • Air-purifier
  • Air-filters
  • In-built Stabilizer


  • The outer unit is noisy
  • No backlit remote


If you are okay with 3-star energy ratings and don’t want to spend much, you can opt for Voltas without out any doubt. It is fast at cooling, works at high temperature and keeps the air clean and fresh. It comes with a decent warranty period and it is also fairly reasonable.  But, as it consumes a bit more energy, you have to compensate with your monthly electricity bills.

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6. Sanyo SI/SO-15T5SCIA 1.5-Ton 5-Star Inverter Split AC

Sanyo SI/SO-15T5SCIA 1.5-Ton 5-Star Inverter Split ACIf you are still looking for a 5 star 1.5-ton inverter AC that will fit into your budget, then this is for you. The Sanyo 5 star inverter AC offers fast cooling along with latest features to give you comfort without burning a hole in your pocket.

With 5-star energy ratings and 4.6 ISEER value, it is one of the most energy-efficient 1.5-ton inverter AC in its price range. You can use it more than 8 hours a day without getting worried about the centricity bills. However, you may need to install a stabilizer, in case of high voltage fluctuations.

Features: Copper condenser, Anti-dust filters, Self-diagnosis, Anticorrosive-fins, Auto-restart, Backlit remote, Sleep function, Timer function, Eco-mode, R32 refrigerant.

Power Consumption: 857.89 units

Products Included inside the Package:  Indoor Unit, Outdoor Unit, 1 Interconnecting Pipe, 2AAA Batteries, Remote, Assembly manual, Warranty details

Warranty and Service: 1-year warranty on the product, 1 year on the condenser and 5 years on the compressor

For this particular model, there were rarely any negative remarks about the instalment and service. Instalment was done just a day after delivery in so many cases. The warranty period is also fairly good. For any information, you can chat live with Sanyo customer care. Or, call at 1-800-419-5088. Or, send email at They are available 24*7. 


  • Efficient and fast cooling
  • Energy efficient
  • Cost-effective
  • Copper condenser
  • Self-diagnosis
  • Air-filters and humidity controller


  • Short connecting pipe
  • Noisy


Our suggestion for this model is very clear. If you want a 5 star most energy-efficient 1.5-ton inverter ac but you cannot afford L.G you will go with Sanyo. Apart from a few installation-related issues, there is no major problem reported by its users. It’s the best 1.5-ton 5-star inverter AC at the cheapest price possible.

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7. Carrier R32,CAI18EK5R39F0 1.5-Ton 5-Star Inverter Split AC

Carrier R32,CAI18EK5R39F0 1.5-Ton 5-Star Inverter Split ACThis is for them who are ready to shed some extra on their AC. The Carrier 1.5 ton 5-star inverter AC is a flawless machine. It is super energy efficient, cools in a couple of minutes and made of best quality materials.

But, it is expensive also have some other issues with after-sales service and installation which is why it is left behind.

Best Features: Copper Condenser, High-ambient Cooling, 4 Operational Modes or Flexi cool, Low voltage operation, In-built Stabilizer, Dust-filter, Air-cleaner, Refrigerant Leak Detector, and Dehumidifier.

Power Consumption: 871. 07 units

Products Included inside the Package: 1 Indoor Unit, 1 Outdoor Unit, Remote, User Manual, 2 Batteries and 1 Kit

Warranty and Service: 1 year on the product, 1 year on the condenser and 10 years on the compressor.

Customer service and installation are two downsides for Carrier. Even on this particular product, customers have mentioned that the installation was delayed. Their after-sales service is also not very responsive. Although there were no malfunction or quality issues reported by the customers. For any kind of help you can call Carrier customer service at 1800-103-3333 or Email @


  • Energy savings
  • Fast cooling and high-ambient cooling
  • 4 temperature and energy controls
  • Solid build and design
  • 4 operational modes for energy savings
  • Stabilizer free operation
  • Premium brand


  • Expensive model
  • Poor after-sales service


Like we mentioned earlier, this product is a premium addition to the list. It is about superb cooling, energy-saving, top-notch quality along with an expensive price tag. This product also has some issues with the instalment and after-sales service. So, choose wisely. If you have used a Carrier AC before without facing no such problems and you have a thing for the brand name, you can go with Carrier.

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8. AmazonBasics PBAC18K3INV301 1.5-Ton 3-Star Inverter Split AC 

AmazonBasics PBAC18K3INV301 1.5-Ton 3-Star Inverter Split AC Do you need a 1.5 ton AC but you have a short budget? You can make a smart buy with the AmazonBasics 1.5 ton 3-star inverter AC.

Amazon has recently launched its 1st inverter AC. Though it is cheap but is cools well and fast. Energy-saving is not that good but it comes with some latest features like HD filter, self-diagnosis, auto-clean, etc.

Best Features: Anti-corrosive Copper Condenser with Gold Fins, 12 fan speed settings, High-density Dust- filter, Humidity Controller, Eco mode/ Turbo mode, Self-diagnosis, Refrigerant Leakage Detector, and Timer Mode

Power Consumption: 1026 units

Products Included inside the Package: 1 Indoor Unit, 1 Outdoor Unit, One Connecting Pipe, Remote and Warranty Card

Warranty and Service: 1 year on the product and 5 years on the compressor and no warranty on the condenser.

Customer service is the major disadvantage of this AC. Amazon needs a huge improvement here. After-sales service is not available in slightly rural areas. There were mixed reviews about the installation. According to some, it was on time while some others said it was unprofessional. We suggest you; before you buy the product call them and ask them if there is any service canter around you. Call them at 1800-5726-888.


  • Affordable
  • Efficient cooling
  • Copper condenser
  • Self-diagnosis and auto-clean
  • HD filter


  • Poor customer service
  • No warranty on the condenser
  • Flimsy remote


This is the least expensive model on the list. You can go with it if you have a short budget and you need a 1.5-ton inverter AC for your home. There are a lot of issues regarding customer support. So before you buy the product make sure you have a service center around you.

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9. Daikin FTKP50TV 1.5-Ton 4-Star Inverter Split AC

Daikin FTKP50TV 1.5-Ton 4-Star Inverter Split ACThis Japanese multinational air conditioning manufacturing company has one of the best cooling inverter ACs in the world. This 1.5-ton 4-star BEE rated model is also energy efficient and it’s also cheaper than the 5 star rated models. It also works best at high outside temperatures.

Best Features: Copper compressor, Energy Saving Mode/ Econo Mode, Power Chill Feature, Noise Free Operation, In-built Stabilizer, R32 Environment-friendly refrigerant.

Power Consumption: 928 units

Products inside the package:  Indoor Unit, Outdoor Unit, Remote Control, User Manual, Warranty Card, Connecting pipes

Warranty and services:  1 year on product, 1 year on condenser, 5 years on compressor.

Now Daikin has so many service centers across India. But this model has received some negative reviews like high installation charge and unresponsive customer support team. If you are facing any problem in installation or in repairing you can directly contact them 0124-4555444.   They are available 24*7


  • Inexpensive
  • Good cooling
  • Energy efficient
  • 100% copper condenser
  • Noise-free operation
  • In-built stabilizer


  • High installation charge though it claims to be free
  • Unresponsive customer support team


Daikin is mainly popular for its inexpensive air conditioners. They are always efficient at cooling and this one is energy efficient too. If you think other 5-star inverter ACs are too heavy on your pocket you can choose Daikin.

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10. Hitachi RSB518HBEA 1.5-Ton 5-Star Inverter Split AC

Hitachi RSB518HBEA 1.5-Ton 5-Star Inverter Split ACWith 5-star energy ratings and ISEER 4.7 value, the inverter AC can save a lot on your electricity bills. The compressor made for hot tropical weathers and the condenser is 100% copper condenser. It is completely noise-free and best if you are sensitive to background noises.

Features: 100% Copper Condenser, Tropical Compressor, Dust-filter, Filter Clean Indicator, Low-noise operation

Power Consumption: 869.21

Products inside the package: Indoor Unit, Outdoor Unit, Remote Control, User Manual, Warranty Card.

Warranty and Service: 1 year on product, 1 year on condenser, 5 years on compressor.

Hitachi is yet to improve its service centers in India. Their customer support team is also not very responsive. Majority of the unsatisfied customers had issues with their customer support team. If you think of buying a Hitachi AC make sure you have a service center around you.


  • 5-star energy rating
  • 100% copper condenser
  • Efficient cooling
  • Filter Clean Indicator
  • Low Noise operation


  • Poor after-sales service
  • Unprofessional installation.
  • No sleep mode


Hitachi is mainly famous for manufacturing ACs. It’s a good unit with good energy savings, highly efficient compressor, and low noise operation. Unfortunately, they need a lot of improvement in their customer services.

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Best 2 Ton Inverter AC in India

2-ton inverter ACs is the biggest size ACs that you can find in the Indian market. For your biggest drawing and living rooms with 150-200 sq feet area need a 2-ton inverter AC

11. LG KS-Q24ENXA 2-Ton 3-Star Inverter Split AC

LG KS-Q24ENXA 2-Ton 3-Star Inverter Split ACAre you looking for a 2-ton inverter AC but you are stuck with the brand and your budget?  Go with this L.G 2 ton inverter AC, the best ac for your large drawing and living rooms.

With dual inviter compressor, a 100% copper condenser, energy-saving mode, and instant cooling mode it works with perfection without being heavy on the pocket. It has 3 BEE star ratings but with a dual inverter compressor energy consumptions are substantially reduced.

Features: Dual Inverter Compressor, High-ambient Cooling, 100% Copper Condenser with Anti-corrosive Protection, Instant Cool, Energy Saving Mode, HD Air-filter, Monsoon Cooling, Low- refrigerant Detector, In-built Stabilizer, Sleep Mode and Timer 

Power Consumption: 1291.36 unit

Products inside the Package: 1 indoor unit, 1 outdoor unit, 2 batteries, 1 connecting wire, remote, installation plate, installation tape, user manual, warranty card

Warranty and Service: 1 year comprehensive warranty on the product, 10 years on the compressor

L.G is highly appreciated for its after-sales services. They have wide after-sales service network across India, including the rural areas.  This product has mixed reviews about L.G service and installment. Some said the installing was late while some has rated 5 stars for on-time instalment and responsive customer service. If you face problem regarding any of these you can contact L.G at 1800-315-9999 or 1800-180-9999


  • Great cooling
  • Cost-effective
  • Anti-corrosive copper condenser
  • In-built stabilizer
  • Energy-saving mode
  • Smooth and noise-free operation
  • User-friendly modes and settings
  • No need of a stabilizer


  • Average Customer Service


A 2 ton inverter AC is the costliest so a good warranty and reliability become more important. With this inverter AC you get fast and efficient cooling, solid build quality, energy savings and most importantly your peace of mind with 10 years of warranty on the compressor.  If you want the best value of your money choose L.G.  

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12. Godrej AC 2T GIC 24 MGP5-WRA Split 5S 2-Ton 5-Star Inverter Split AC 

Godrej AC 2T GIC 24 MGP5-WRA Split 5S 2-Ton 5-Star Inverter Split AC Want to buy the best energy efficient 2 ton refrigerator without spending much? Choose this Godrej 2 ton 5 star inverter split AC. If offers comfort and cooling without being too heavy on the pocket.

Godrej comes 2nd on the list for two reasons. One is, Godrej has as an Alloy condenser with is takes more time cooling. And it is also less durable than a copper condenser. Another reason is, in case of high voltage fluctuation Godrej’s in-built stabilizer is not enough.

Best Features: Twin Compressor, In-built Stabilizer, Dust-filters, Anti-bacterial Filter, Active Carbon Filter, Power Saving Mode, Sleep and Timer, 30 Meter Long Pipe, R290 refrigerant ( lowest ozone depletion potential)

Power Consumption: 1024.36 units

Products inside the Package: 1 Indoor Unit, 1 Outdoor Unit, One Connecting Pipe, Remote and Warranty Card

Warranty and Service: 1 year warranty on the product, 5 years on the condenser and 10 years on the compressor

The Indian brand is very responsive to their customer complains. For any kind of problem with cooling, install and uninstall and repair you can directly call them and ask for help at 1800-102-1511. Now coming to this particular model, the reviews are excellent. There is rarely 1 or 2 customer who has issues with installment. So, it is expected that you won’t face any such problems.


  • 5 star super energy efficient
  • Cost-effective
  • 5 years warranty on the condenser
  • Dust, bacteria filters along with activated carbon filters
  • Lowest ozone depletion potential R290 refrigerant


  • Alloy condenser
  • You may need to install a separate stabilizer if voltage fluctuations are random


If your needs are higher like, if you are going to use it for more than 6 hours a day, go with Godrej as it is more energy-efficient. Twin compressor, 5 star energy ratings, 3 filters, and most environment- friendly refrigerant it is certainly one of the best 2 ton inverter ACs in the Indian market.

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Buying Guide – All You Need To Know About Inverter ACs

When you think of buying an AC to beat the heat, you will come across two types of ACs namely non-inverter ACs and the inverter ACs. The inverter ACs are the latest additions in the AC family, and that is why they are more efficient and profitable for the buyer. By the term ‘inverter’, people generally think of a typical inverter appliance which will supply current from the battery when the main power is off.

However, the term ‘inverter’ in inverter ACs has nothing to do with a typical inverter appliance. It is due to the implementation of Inverter Technology in those ACs that they are named such. Therefore, without further ado, let’s know all the different aspects of inverter ACs that you should educate yourself before buying one.

What Is An Inverter AC?

The compressor is the heart of an air conditioner. The air conditioner that uses the inverter technology to control the speed and power of the compressor is referred to as an Inverter AC. By controlling the speed of the compressor, it is controlling the power consumed by the compressor and hence, it is power efficient. This speed controlling depends on the thermostat reading, and therefore, the cooling is more effective, and the temperature regulation is optimal at any given point in time. It is important to note that the inverter ACs are split ACs as the inverter technology is exclusively applicable to them.

How Does An Air Conditioner Work?

To understand the working of an inverter AC, you have to first understand the working of any general or non-inverter air conditioner. In general, it is based on the principles of evaporation, compression, and condensation. An air conditioner works by taking the indoor air, cooling it down and throwing it back to the room.

The Evaporator

The hot air from the room is drawn in through the grille in the indoor unit. The cooling down of the air takes place while passing through the evaporator. The evaporator coil is where the hot air and coolant refrigerant pass through. The refrigerant absorbs the heat for the air, and itself turns into a gas.

The Compressor

Along with the evaporator, the compressor, and the condenser work in conjunction. The gaseous refrigerant goes through the compressor located in the outdoor unit and leaves as a high-pressure, hot gas. In the compressor, the gas is compressed and hence, the pressure and temperature of the gaseous refrigerant rise.

The Condenser

The high pressure, hot air goes to the condenser located in the outdoor unit where the condenser dissipates the heat through metal fins. The refrigerant condenses from gas to liquid. This fluid makes its way into the evaporator where it again evaporates into the gas.

To evaporate the liquid into the gaseous form in the evaporator, heat is required. This heat is extracted from the room air. Therefore, the air conditioner sucks in air from the room through the vent ducts. Once the heat is extracted from the sucked in air, the cooled air is thrown back in the room.

This is how it forms a complete closed loop, and the process is repeated again and again. This process continues until the room temperature reaches the desired level as set by the user.

The difference in the working of an inverter and a general or non-inverter AC has been explained below.

Difference Between Inverter and Non-Inverter ACs –

Technology and Compressor Type 

The primary difference between inverter and non-inverter AC is the use of inverter technology in the inverter AC. The inverter technology controls the speed and power supply to the compressor motor that is majorly responsible for the temperature regulation ability of the unit.

Therefore, an inverter AC has a variable speed compressor so that it can regulate the temperature and provide optimal cooling or heating as per the load of the room. On the contrary, a non-inverter AC comes with a fixed or single speed compressor that can either switch on or off at the set speed.

Operational Difference

An inverter AC works by controlling the speed of the compressor which in turn, controls the flow of refrigerant as per the temperature requirement of the conditioned space. The compressor never stops working and does not stop or start frequently. Therefore, the cooling and heating are precise and consistent. On the other hand, a non-inverter AC has fixed power and speed, and it frequently starts and stops which is why the cooling and heating power is neither precise nor consistent.

Energy Efficiency

For a user, rather than the constructional, technological or operation difference, it is what they are getting and what they are missing are more important. By logic, as the inverter ACs are the latest additions in the market, they are more energy efficient. On a technical level, it is the operations of the ACs that make all the difference as far as energy efficiency goes.

In an inverter AC, the cooling and heating are totally automated, and the power supply and the speed of the compressor are adjusted automatically depending on the requirement of the room where it is placed. Due to this constant regulation on electricity consumption, it becomes more efficient than a non-inverter AC where the power supply and speed stay constant in all scenarios.

Power Consumption

The following is an illustration of the power consumption of inverter and non-inverter ACs as published by BEE in 2018.

  0.75 ton 1 ton 1.5 ton 2 ton
1 Star AC (non-Inverter) 630 840 1250 1650
2 Star AC (non-Inverter) 600 800 1180 1630
3 Star AC (bothInverter and non-Inverter) 540 750 1100 1450
4 Star (Inverter) 460 650 950 1290
5 Star (Inverter) 450 550 840 1110

Note that the data in the table are on the basis of annual electricity consumption (1600 hours) and the unit is in kWh. The data are rounded off to the nearby multiple of 10 for better understanding.

It is very clear of the data above that a non-inverter AC consumes more power than an inverter AC, and the greater the star rating, the more energy efficient the air conditioner will be, and the lesser will be the power consumption.

Miscellaneous Factors

Noise is an integral part of any AC and the closer you sit near the AC, the more you will notice it. The origin of the noise is a combination of all the major components. As for the inverter AC, the compressor does not go on and off as frequently as a non-inverter AC, hence, the operation is quieter in comparison. The annoying noise in the non-inverter AC is due to the constant on and off of the compressor motor.

As far as the cost goes, the more energy efficient product is likely to have higher price tags. Therefore, an inverter AC with a certain star rating is slightly pricier than the corresponding non-inverter AC. However, this is a one-time investment, and in the long run, you will be saving more money on the electricity bill with an inverter AC.

Understanding The Components Of Split ACs 

As an inverter AC is basically a split AC with the inverter technology, the components are the same. In general, there are three parts in a split AC namely the indoor unit, the outdoor unit and the pipes connecting the units. The following is an in-depth look at the various inner components of these major parts. Understanding this component will help you compare different models of inverter AC and choose the best one within a certain budget you have in mind.

Evaporator Coils – The condenser is where the refrigerant absorbs the heat of the drawn-in air of the room and turn into the gaseous state. Therefore, the condenser coils are filled with refrigerant in its original liquid state. These coils also eliminate the moisture from the air along with heat and this network of tubes is located in the indoor unit.

Compressor – It is the heart of an air conditioner. It is located in the outdoor unit. The main job of the compressor is to increase the pressure of the gaseous refrigerant that comes from the evaporator. Due to compression, the pressure increases and thereby, the temperature of the gas also increases. It is the most important step as it prepares the refrigerant to give up its heat in the next stage and change its state of liquid which is its original state.

Condenser Coils – The role of the condenser coils is almost the opposite of the evaporator coils. This network of tubes is located in the outdoor unit, and they are filled with refrigerant in the heated gaseous form coming from the compressor. The condenser coils remove the heat for the refrigerant by radiating heat outside through metal fins. Due to the cooling of the refrigerant, it changes its state from gas to liquid again.

Fan – There is a fan present in the outdoor unit which not only radiates the heat from the refrigerant but also from the overall outdoor unit. The outdoor unit gets heated due to the flow of the hot gaseous refrigerant from compressor to condenser coils. To prevent overheating and malfunctioning of the unit, the fan and the fins draw the hot air out of the unit continuously.

Air Filters – The role of the air filter is to prevent any impurities present in the room air from entering the air conditioner. These impurities can be dust, pollen, and various such airborne particles. This ensures the smooth functioning of the system and the quality of the air in the room.

Thermostat – The thermostat is a very crucial part of an air conditioner. The overall performance of an air conditioner depends on it as it is the control center. It reads the indoor temperature and the temperature you set for your comfort. Accordingly, the speed of the compressor is controlled, and hence, the cooling and heating effect take place to meet the requirements.

Pipes – There are two main pipes needed in a split AC namely refrigerant pipe and draining pipe. The refrigerant pipe which can be of copper or aluminum or alloy is used to connect the indoor unit to the outdoor unit. Due to condensation, water is a by-product generated in the process. However, the accumulation of water in the system can be dangerous for electric parts in the system. Therefore, to eliminate water, a drainage pipe is attached which eliminates water droplets and makes the system run perfectly.

Apart from these, there are blower for blow cool air in the room, chemical refrigerant which is the lifeline of air conditioning system and there is an expansion valve which comes after the condenser coil to lower the temperature of the liquid refrigerant before entering evaporator coils again.

Things To Consider While Buying An Inverter AC 

While researching and going through inverter ACs of different brands, you have to keep the following factors in mind. You have to make sure that you shortlist to buy such an inverter AC where the factors are well-balanced so that you get the perfect value for your money.

1. Room Size

The first thing to consider while buying an air conditioner is the room size where you will install it. Rooms of different sizes need ACs of different capacity so that the AC can perform its job perfectly. In short, the larger the size of the room, the higher the ton of the AC you have to buy. The term ‘ton’ refers to the amount of heat an AC is capable of removing from the room in an hour. British Thermal Unit (BTU) is the unit for the measurement of the amount of heat removed. Therefore, the higher the ton of the AC, the higher will be the BTU and therefore, the greater will be the cooling capacity of the AC.

Naturally, a large room will have more hot air at any given point in comparison to a smaller room. Hence, you need a higher ton of AC to cool the room faster. In general, 1 ton is equal to 12,000 BTU per hour, and 2 ton is double of that, 3 ton is triple of that and likewise.  Now that you have some idea about what ton means in an AC, it is time to correlate the size of your room which the appropriate ton of the AC you should buy.

Frankly speaking, there is no universal correlation between the size of the room and the tonnage you need to buy. This is because the cooling of a room not just depends on the size of the room but also the number of people in the room, appliances running in the room, the outside environment, and much more. Still following is a rough estimation and correlation between the size of the room and the tonnage you need for optimal cooling.

0 – 80 0.75
80 – 140 1
150 – 200 1.5
200 – 300 2

There is no harm if you buy a high capacity AC for a small room as the cooling will be faster. However, you have to pay a higher price of the AC unnecessarily, and the overall power consumption will be higher for no reason at all. Therefore, buy the optional capacity of the AC according to the room size.

2. Star Ratings

You might have seen that different inverter ACs has different star ratings. Some are having 3 stars, others 4 and even 5 stars. These star ratings imply power consumption. We all know that AC consumes relatively more power than most other electric appliance. However, the power consumption is less in an inverter AC than a non-inverter AC which we have already explained. The star rating is given by the Bureau Of Energy Efficiency (BEE).

BEE rating depends on EER which stands for Energy Efficiency Ratio. EER is determined by the cooling capacity divided by power consumption. The less the power consumption, the higher will be EER, and the higher will be the number of stars an AC gets. In other words, the higher the number of stars, the lesser will be the power consumption. Therefore, if your budget can accommodate, always go for the higher star rating inverter AC. You will save a lot of money in the long run even though the inverter AC may cost slightly higher which you should consider as a one-time investment.

3. The Material Of The Coils 

You must have seen in the component section that an inverter AC has coils in the condenser and evaporator section. The material of the coil varies from one model to another. The popular materials used are copper, aluminum or alloy. The aluminum coil based AC will cost less, but the durability of the coil will be less and hence, you have to change such coils multiple times in the lifespan of the AC. The alloy coils have still lesser durability. It is the copper coils that are the best, and you should always insist on buying copper coil based ACs. This will ensure longer life of the coils and leakage-free, optimal cooling experience.

4. Miscellaneous Settings

The inverter ACs are quite modern, and therefore, most of them have various features and settings. While buying you should ensure that the AC has an adjustable thermostat, adjustable cooling speed settings and fan speed. This is because you may want to set different settings at a different time of a day. There is always an auto mode to take care of everything automatically. But if you opt for manual control, the above-mentioned settings are a must. By manual control, you can save power consumption and set the settings you are comfortable with.

Apart from these, you should check the temperature range the AC is compatible with.  Other than the auto mode, there could be various other useful modes like Turbo mode for instant cooling, Night mode, Rainy mode, Fan mode, Heat mode and much more. The greater the modes, the better and user-friendly the AC will be. As a matter of fact, these days, there are certain inverter ACs that are having Wi-Fi connection so that you can control the operation of your AC with your smartphone and turn it on and off from any place in the world.

5. Air Quality

The importance of ensuring proper air quality is quite high as there are various airborne diseases happening especially in the urban and semi-urban regions. Therefore, the inverter AC brands are clearly mentioning what their product can do in terms of air quality. If your home is close to the roads and there is a lack of trees around, you should opt for the one that provides the best air quality control. The usual ones absorb the dust, pollen, and other such particles as the air of the entire room passes through the filter. However, there are some which can also make the air get rid of various germs and smaller particles.

6. Usage and Price

If you are going to use your AC only in the summer season which consists only 3-4 months and you are planning to keep it on for 8-10 hours, you can go for the 3-star inverter AC. However, if you are going to use it for 6-8 months and that too for 12-16 hours, you should opt for the 5-star inverter AC to save a lot of money in the long run as far as electricity bill goes.

The price of the inverter AC varies based on the tonnage, the star rating, the features, the design, and the brand. The 1.5 ton AC is quite standard, and the price will vary from 35,000 to 50,000 INR. The 1-ton will be in the range of 30,000 to 40,000 INR while 2-ton inverter AC will be from 45,000 to 65,000 INR. You have to choose the best one within your budget keeping in mind this buying guide.

7. Warranty and After-Sales Service

The warranty plays a major role in an electric appliance. For inverter ACs, the warranty is based on the compressors. It varies from 5 to 10 years. For better after-sales service, you have to pick an inverter AC from the best brands. Such popular brands have service centers across the country, and the installation will be within a few days. Besides, the AC needs annual maintenance service, and you can get them available readily.

Frequently Asked Questions 

1. What is a Dual Inverter AC?

A dual inverter AC is a new addition in the market, and it is an improvement over the general inverter AC. It comes with dual rotary motors and hence, it is so named. The product has a wider rotational frequency due to which it is more efficient in its performance. The cooling will be faster, and there will be lesser noise. Not just that, there is going to be a better saving in the power bills, and therefore, it is a more profitable product to buy.
A general inverter AC works the best when the outside temperature is below 46 degree Celsius. But for a dual inverter AC, this temperature limit extends up to 52 degree Celsius. Other than that, it works in the same fashion as a general inverter AC by regulating the speed of the compressor. If your area sees the extreme of temperature in the summer and you are a heavy user of AC, go for a dual inverter AC. You can have a look at our best air conditioners in India list above.

2. Are Window ACs available with Inverter Technology?

The inverter technology is primarily available for split ACs. However, brands like LG and Voltas have launched a handful of models where the Window ACs are having inverter technology in the compressor.

3. What is ISEER Rating for air conditioners?

The Bureau of Energy Efficiency (BEE) is responsible for giving star ratings to the ACs to help the customers identify the energy efficiency of the different models of ACs. In 2018, BEE introduced a new star rating label named Indian Seasonal Energy Efficiency Ratio or ISEER. It is an improvement over the previous rating system as it takes into consideration various climatic zones of India, variations in the temperature ranges and much more.

4. What is wrong with buying a non-inverter AC?

Just because a non-inverter AC costs less than an inverter AC does not mean you buy it. The initial cost will be cheaper by a few thousand, but in the long run, you have to spend thousands and thousands in the power bill. The non-inverter ACs have a fixed speed compressor, and therefore, there are less energy efficient. In other words, they consume more energy or electricity, and therefore, the power bill will be higher in comparison to inverter ACs.
Secondly, the non-inverter ACs always overcool the room which means if you set the temperature at 25 degree Celsius, the ultimate output will be around 22 to 23 which can be uncomfortable for many. This is because the fixed speed compressor is designed for the peak heat load. Even though the thermostat switches off the compressor at 25 degree Celsius, the refrigerant manages to absorb heat from the room air and convert into gas.
Lastly, non-inverter ACs are fast becoming obsolete. Therefore, you should buy them at your own risk because the spare parts may not be available in the future. The ACs needs annual maintenance, and at times, there are certain parts you have to change in case they get damaged somehow. In such a case, if the spare part is not available, you have to buy a new AC. This is why it is always best to buy the latest model, and most of the latest AC models have inverter technology.

5. Do I need to buy a voltage stabilizer with an inverter AC?

When you are buying an AC, you need to make a sizeable investment. It is always the responsibility of the buyer to protect their investment. Ideally speaking, you should expect your AC to work well for at least a decade before it needs repairing. Apart from the other factors, it is generally the voltage fluctuation that is extremely damaging for the ACs of any type. An inverter AC does not come with an inbuilt voltage stabilizer and therefore if you are living in a region where the voltage fluctuation a lot even though it is smaller in magnitude, you better get a voltage stabilizer.
This is because the compressor which is the most pricy component in the entire AC works in the voltage range of 190V to 240V. However, in the various parts of India, voltage fluctuation is common, and in some parts, the voltage is lower than 190V. In such areas, the voltage stabilizer will ensure the protection of the different parts of the AC and elongate its lifespan. Therefore, definitely ask the service providers who will be installing the AC to bring a voltage stabilizer as per the specifications of the AC.

6. What are the common modes in an inverter AC?

There are main four modes available in an inverter AC namely auto, cool, dry, and fan.
Auto Mode – In this mode, the cooling required for any room is determined automatically by the air conditioner based on the outside temperature. It is perfect when you are sleeping at night or planning to run the AC for a long time whereby the outdoor temperature variation is likely.
Cool Mode – The cool mode is the manual mode of cooling where you set a particular temperature, and the cooling effect will be served by the machine accordingly. It is best when you do not want that chilly atmosphere in the room or want instant cooling by fixing the temperature at the lowest point.
Dry Mode – This mode is applicable in the rainy season or when the room is humid. This is when the AC works more like a dehumidifier. You will find it better to breath as this can eliminate the moisture from the room air. Besides, too much moisture in the room air can damage your wooden furniture and promote the presence of bacteria in the air.
Fan Mode – Going by its name, it is the mode where you use your AC as a fan to circulate air in the room. You can use it in the winter season to heat up the units of ACs so that it does not get jammed and need maintenance service. It is also useful when the temperature is pleasant in the room, but the air is suffocating due to lack of circulation.

7. How often should I clean the air filter in AC?

The air filter of an AC is where the dust and airborne particles accumulate. The more the accumulation, the lesser will be the quality of air in the room. Therefore, you should clean the air filters from time to time to maintain a proper level of air quality. If you can, you should do it once or twice a month if you are using the AC regularly. You should ask the service provider how to open and attach the air filter when they come to install the AC. Apart from that, you should opt for annual maintenance service where they clean the air filter thoroughly along with other parts.

8. How can I maximize the performance of AC in my room?

There are a lot of things you can do in order to maximize the performance of your AC. First of all, you should ensure that the outdoor unit is facing an open area so that there is no blockage in the air flow.
Secondly, you need to see that there is no blockage in the drainage pipe and therefore, you should place it a foot above the ground so that insects cannot get in or kids start pulling them.
Thirdly, the indoor unit should not be placed on the wall which gets direct sunlight as it can get heated up.
Fourth, you should use blinds, curtains or sun films on the windows to reduce the heat input. This will ensure that the AC will take less time to cool the room and thereby, saving the power quite significantly. Fifth, you can install a false ceiling as the heat for the ceiling will not radiate that much directly in the room. Sixth, you should open the windows and let out the hot air from the room using the ceiling fan you have or the fan mode in the AC before closing the windows and starting the cool or auto mode.
Last and the most important step to increase the performance of the AC is to clean the filter regularly. Unclean filter obstructs optimal cooling, and the efficiency goes down by 10%.


So, if you have decided to buy an AC to beat the heat, you should always opt for an inverter AC rather than non-inverter ones. Since it requires quite a chunk of money, it is your responsibility to research well before buying. The above buying guide can help you through the process.

Our top pick for the best AC in India right now, is the LG KS-Q18YNZA 1.5-Ton 5-Star Inverter Split AC It is packed with features that are not only desirable but also very usable. The capacity of 1.5 ton is sufficient for a medium sized room. Coupled with the fact that it is 5-star BEE rated, it’s just the icing on the cake!

You want less power consumption? The inverter technology can take care of matters. You want efficient cooling? This can cool your room with the Hybridjet and Cyclojet technology. Along with that you get effective filtration system for better air quality, dehumidifier, various modes and additional features. Most importantly, you get the highest warranty figure of 10 years on the compressor. So, it is basically an all rounder and our favorite.

There are many other excellent ACs specially handpicked for you. They are listed keeping in mind, all the things you need while buying an AC in India.

Let us know your favorite from our list in the comment section below. We are waiting!

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