Best Window AC in India [2021] – Reviews & Buying Guide

September 13, 2021 / RefrigeratorPro Team

Summers in most parts of India is quite uncomfortable. Thus, air coolers and ACs have become a necessity now. Window ACs are not as common as they used to be till about a few years back, but they still have their utility and are purchased by a large number of Indians every year.

Best window AC

A high number of air conditioners in the market have made it more difficult to choose the best window AC for our homes.

This guide will help you find the right window AC for your home. There are many decent quality window ACs available in India today. Some of the best brands are Voltas, LG, Hitachi, Carrier, Panasonic & Blue Star. Let’s take a look at their top window ACs.

Table of Contents

Best Window ACs

Product Editor’s Pick Runner Up Worth Considering
Name Voltas 1.4 Ton 3 Star Window AC LG 1.5 Ton 3 Star Window Inverter AC Panasonic 1.5 Ton 3 Star Window AC

Cools instantly and gives decent cooling even at 50 degrees, Made from high quality material, Energy efficient window AC

One of the few window ACs with energy saving inverter compressor, Very low noise level, Powerful cooling

Comes at attractive pricing and brand is considered number 1 in Japan. Has feather touch controls that look stylish as well.

Cons Produces slight noise, but it is common with window ACs Slightly higher cost of installation No energy saving mode
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Here we have listed the best Window ACs in India. You can go through the reviews and pros and cons of the AC.

Voltas 1.4 Ton 3 Star Window AC

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Voltas is one of the most reputed brands in the window AC segment. Its window ACs are not only good in quality but are also affordable at the same time. This AC brand is a part of reputed TATA Group and its window ACs are some of the best in the market.

  • Capacity: 1.4 Ton
  • Energy Rating: 3 Star
  • Warranty Period: 1 Year

The Voltas 1.4 Ton 3 Star Window AC comes many features that will be useful for Indian households. Most of its features are quite similar to its 5-star rated version, but owing to its 3 star rating it is less costly and more powerful in terms of cooling. Best features of the AC are:

2 Stage Filtration: This filtration system purifies indoor air effectively. This is especially useful in cities with higher pollution.

Active Dehumidifier: It reduces moisture in the air. You can use this feature during monsoons or whenever the humidity in the air is high.

Self-diagnosis feature: It is a useful feature that helps in resolving issues in case of breakdowns. The self-diagnosis feature displays error code, which you can share with customer care executive for fast and convenient issue resolution.

Eco Mode: This mode is energy efficient mode and turning it on reduces the energy consumed by the AC.


  • Self-diagnosis feature for easy error resolution.
  • 100% copper coils for long life and lower maintenance cost in the long run.
  • 2 stage filtration for purifying air from harmful pollutants.
  • Eco mode for saving on power consumption.
  • Can cool efficiently even at high temperature of 50 °C.


  • No inbuilt stabilizer

LG 1.5 Ton 3 Star Inverter Window AC

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  • Capacity: 1.5 Ton
  • Energy Rating: 3 Star
  • Warranty Period: 1 Year

LG brings some of the best 1.5 ton window ACs in India. Its 1.5 ton 3 Star AC features dual inverter motors makes it one of the few window ACs with the market with inverter compressor. In fact, this is not even regular inverter compressor. It’s a dual inverter compressor that gives energy efficient and low noise performance. Its noise levels are some of the lowest in the market at 44 dB.  Finding this silent window AC is not easy. On top of this, its compressor comes with a high 10 years of warranty. Again, we do not find many models that can offer such features. And finally, all of this comes at affordable pricing. Let’s take a look at its other features.

100% Copper with Ocean Black Protection: This anti-corrosive Ocean Black Protection gives high durability and increases the life of the AC because it is specially designed for Indian conditions.

Top Air Discharge: The AC comes with wide air flow, which helps in fast and even cooling all over the room and not in only certain parts.

Clean Filter Indicator: Thisindicator will alert you when the filter needs to be cleaned. Not many window ACs have this feature.


  • Very low noise operation
  • Dual inverter technology for efficient cooling
  • 10 year warranty on compressor
  • 100% with ocean black protection for long life of coils


  • Slightly higher cost of installation

Panasonic 1.5 Ton 3 Star Window AC

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  • Capacity: 1.5 Ton
  • Energy Rating: 3 Star
  • Warranty Period: 1 Year

Panasonic is the number one AC brand in Japan. No wonder, its window ACs have some of the highest user satisfaction in India. Panasonic 1.5 ton 3 star AC’s best feature is its attractive pricing. It is priced quite low as compared to other similar ACs. It is a modern AC with feather touch controls. On top of this, it is a powerful AC, which gives effective cooling with its powerful mode. Also, its noise level of 56 dB is neither too high nor too low. Finally, its copper condenser ensure long life  and it also costs less to maintain this type of coil.

Let’s take a look at its top features. Here are its key features:

Powerful Mode: When you switch on this mode, it cools the room in less time and gives effective cooling.

4D Cooling: This technology cools the room evenly in every corned by distributing air evenly in all directions.

Blue Fin Condenser: Its usually hard to find this technology in window ACs. This is an anti-corrosion coating on the condenser coils to increase their lifespan.

Feather Touch Control: This modern air conditioner comes with stylish feather touch control system which are easy to use  and add that elegant touch to the AC panel.

Apart from all this, there are also other features such as PM 25 filter and dehumidifier. This feature-packed AC comes at affordable pricing as well.


  • 100% Copper coil for long life and lower cost of maintenance.
  • Coils covered with special coating to further enhance life of the coils.
  • PM 2.5 filter for removing harmful pollutants even as small as 2.5 micrometers.
  • Feather touch control for stylish looks and better usability.
  • Attractively priced.


  • No energy saving mode

Voltas 1.4 Ton 5 Star Window AC

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  • Capacity: 1.4 Ton
  • Energy Rating: 5 Star
  • Warranty Period: 1 Year

As discussed, Voltas is one of the best brands in window AC segment. No wonder we bring another Voltas window AC in our list. The Voltas 1.4 Ton 5 Star Window AC comes many features that will be useful for Indian households. Its 1.4 ton capacity is decent for most of the households in the country and it has one of the best energy-efficiency. One exciting feature of the AC is its ability to cool efficiently at high temperature of 50 °C. On top of this, it has an energy saving mode called eco mode to reduce electricity consumption, thus helping in reducing power bills. Here are the other features of this AC:

Turbo Cooling: This mode gives powerful cooling by running at maximum capacity.

2 Stage Filtration: Advanced filtration to remove pollutants such as dust and fine particles.

Self-Diagnosis: This feature shows error code in the remote control, which can be shared with customer care executives in case of any problem with the AC.

Sleep Mode: This mode gives effective cooling to allow for comfortable sleep during the night.

Apart from all this AC is decent enough for most of the Indian households, especially the ones who want lower electricity bills because it is a 5-star AC, which means most energy efficient in its range.


  • 100% copper coils for better performance and lower maintenance cost.
  • 2 stage filtration for purifying air from harmful pollutants.
  • Different types of modes present for different needs
  • Efficient cooling even at high temperature of 50 °C.
  • Self-diagnosis feature for convenient resolution of errors


  • No inbuilt stabilizer

Carrier 1.5 Ton 5 Star Window AC

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  • Capacity: 1.5 Ton
  • Energy Rating: 5 Star
  • Warranty Period: 1 Year

Carrier is one of the most reputed brands in United States. In fact, its founder was the inventor of modern air conditioning. No wonder, Carrier window ACs are some of the best out there. Carrier 1.5 ton 5 star window AC is its best 1.5 ton window AC. Here are its best features.

5 Star Rating: 5 star rating is the highest rating an AC can get. Thus, 5 star rating means best savings on electricity bills.

Stylish Design: Its design is unique and different from other white-color based ACs. This will go well with modern homes.

Energy Saving Mode: 5 star AC anyway uses less power. Its energy saving mode helps in reducing energy further.

Long life: This AC’s smart control regulates the compressor in such a way that enhances its life.

Exhaust Mode: This mode removes unwanted smoke and odor from the room at the click of a button.

Sleep Mode: It helps maintain steady temperature at night.


  • Stylish design and color scheme
  • Energy efficient with 5 star rating
  • Energy saving mode
  • Technology to increase the life of the compressor.


  • Higher price

Hitachi 1.5 Ton 5 Star Window AC

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  • Capacity: 1.5 Ton
  • Energy Rating: 5 Star
  • Warranty Period: 1 Year

Hitachi is one of the largest AC brands in the world. Its AC business was formed after merger of Japanese (Hitachi) and US (Johnsons Control) giants. It brings some of the best window ACs in India as well. Hitachi 1.5 ton 5 star window AC is an ultra-stylish and low-noise window AC with high-end features. Let’s take a look at its key features.

Twin Motor Technology and Five-Star Rating: This technology gives energy efficient cooling

Auto Climate Technology: This is a high-end feature in this AC. This technology cools the indoors based on the city you are living in. Data of 100 cities is fed into the AC and based on the city and time of the day, it keeps on regulating the temperature automatically. This gives intelligent cooling.

Extra Heat Exchanger for Better Cooling: This is another exciting feature of the AC. An extra heat exchanger is attached to the coil to give water-cooling facility similar to Split ACs. Thus, it discards hot air effectively.

Kaimin Technology: This technology automatically regulates the indoor temperature according to your body requirement during the night.

Koukin Filter: This effective filterprevents growth of bacteria and fungi.


  • Powerful cooling
  • High energy efficiency
  • Auto climate technology
  • 10% higher performance in peak summers


  • Higher price
  • It uses aluminum coil that needs more maintenance

Blue Star 0.75 Ton 3 Star Window AC

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  • Capacity: 0.75 Ton
  • Energy Rating: 3 Star
  • Warranty Period: 1 Year

Blue Star is one of the most sought after Indian AC brands along with Voltas. Blue Star is has done air conditioning projects for Rashtrapati Bhavan, Parliament to name a few. Its 0.75 Ton 3 Star Window AC is one of the most popular window ACs in India. Even though its tonnage is less, it packs several features such as long life condenser coils, rotary compressor for decent cooling and anti-freeze thermostat for preventing frost formation for long life of AC.

Here are some of the best features of the AC.

Rotary Compressor: Efficient compressors are better than reciprocating compressors and give effective and energy efficient cooling and durability.

Comfort Sleep: This feature uses advanced fuzzy logic technology to give comfortable cooling experience throughout the night.

Auto Restart: This features saves the AC settings just before power goes off. Thus, as soon as power comes back, it loads these setting so that you do not have to set the control again.

Hydrophillic Blue Fin: Hydrophillic Blue Evaporator Fins ensures there is no water accumulation inside the AC. This reduces deposit of dust, ensuring long life and efficient cooling.

Anti-Freeze Thermostat: Frost formation inside the AC units is a common problem when running at peak. This AC comes with anti-freeze thermostat that turns the compressor on when the temperature reaches the desired levels.

Self-Diagnosis: This features helps in fast and easy error resolution with the help of error codes.


  • Efficient cooling with rotary compressor
  • Comfort Sleep feature
  • Auto Restart feature for convenience
  • Hydrophillic Blue Fins for long life
  • Anti-Freeze thermostat for long life
  • Attractive pricing


  • No inbuilt stabilizer

Buying Guide – Best Window AC in India

Window ACs used to be very popular before split ACs became commonplace. However window ACs have their own utility and they are still used by many households in India. One of the biggest advantages of Window ACs is that it comes at a decent price point. This affordability makes it a popular air conditioning unit.

The best window AC is one that gives the highest efficiency while consuming less electricity apart from affordability. Let us look at the factors that should be considered before buying window ACs.

  • The size of the room where you wish to install the AC
  • Star Rating
  • Usage of the AC

Size of The Room

This is the number one factor in deciding the tonnage of the window AC that you will have to buy. Larger room will require higher capacity AC. Rule of thumb is that any room with more area than 180 – 200 square feet will require more than 1 ton AC.

If you buy a lesser capacity AC for larger room, then it will have to work harder, which will result in higher energy consumption. At the same time, higher capacity AC will also result in more higher investment.

Window ACs come in 0.75 ton to 2 ton capacity. This table will give you an idea about the ideal capacity of window AC.

Room Size AC Capacity
120 sq. ft. 0.8 ton
120 to 180 sq. ft. 1.0 ton
180 to 270 sq. ft. 1.5 ton
270 to 400 sq. ft. 2.0 ton

BEE Energy Star Rating

BEE Star Rating

All window ACs come with energy star rating as mandated by BEE. 5 star ACs are most energy efficient, while 1 star ACs are least energy efficient. Over the years, rating of window ACs have become more stringent.

We have calculated savings on electricity bill as per star rating of Window AC.

This table shows the amount of money you can save in a 1.5 Ton Window AC at different star ratings.

Star RatingUnits Consumed Per DayPower Cost Per MonthCost Saving Per Year
512.6Rs 2420Rs 3873
413.4Rs 2577Rs 3092
314.3Rs 2754Rs 2204
215.4Rs 2958Rs 1184
116.6Rs 3195NA

*Assuming 8 hours operation per day for five months in year and Rs 6.4 / unit is cost of electricity

As you can see a 5 star window AC is 32% more energy efficient as compared to 1 star AC. Thus, it can save Rs 3873 per year over a 1 star Window AC.

Usage of AC

If you are planning to use AC less and for lesser number of months, then 5-star AC may not be the best fit. You can buy a 3-star AC in that case. However, a 5-star AC is best suited for heavier use so that you will be able to recover the higher cost will this AC in short period of time.

Benefits Of Buying A Window AC 

Finding the difference between split AC and window AC is essential before purchasing an AC. Here we have outlined some of the advantages of window AC.

Lower Price

As discussed, affordability is the best advantage of Window ACs. A Window AC’s price can start from as low as Rs 15,000. This is quite low as compared to other types of ACs in the market. However, higher priced window ACs are also there in the market. Some window ACs can also cost as much as Rs 40,000 as well.

Ideal for Small Room

Window ACs are best for smaller rooms as they offer optimum cooling at affordable rates. Also, they do not take any area inside the rooms as the cooling unit is placed outside the window. This is decent advantage if you live in a house with smaller rooms.

Easy Installation and movement

Window ACs are quite easy to install as these ACs do not require drilling holes in the wall or installing ducts. This makes window ACs best suited for users who are on the move or who are living in rented apartments.

The process of installation of window AC is quite straight-forward and only slightly different for different window ACs. You will get all the instructions in the manual that comes with the AC unit and it can be installed without help of an expert.

Features to Expect in A Window AC

Dust filters

Apart from cooling air, ACs also perform air purification. Most window ACs come with filters for purifying air. These filters filter out dust from air. These filters should be cleaned once every month.

Usually, PM 2.5 filters are better than other types of filters in Window ACs. Thus, this type of filter should always be preferred.

Anti-bacterial Filter

Anti-bacterial filter can block growth of  bacteria such as e. coli, staphylococcus etc. Different brands have different technology for filtering bacteria, for example, Voltas has Acaro Anti-bacterium filter, Carrier has Biofilter and Blue Star has also has ACs with anti-bacterial filters. Many anti-bacterial filters work by charging the agents negatively and then attract the bacteria and other agents by producing opposite, positive charge.

HD Filter

HD Filters or high density filters are more advanced form of dust filters and can remove bacteria, pollen, dust mites and other allergens from the air. Brands such as Samsung and LG use these filters.


Almost all window ACs come with a dehumidifier. This feature removes moisture in the air. If you are feeling uncomfortable due to higher humidity, then you can use the feature to decrease the moisture. It is especially useful during rainy season.

This can also be useful to reduce the effect of covid19 virus as well.

Auto Clean function

This feature removes the moisture from inside the AC unit. This helps prevent growth of microorganisms inside the AC unit. It works by blowing air inside the AC unit once the AC is switched off. Thus, evaporating any moisture present inside the AC. However, it should not be confused with filter cleaning which has to be done manually on a regular basis as there is no automatic filter cleaning feature in window ACs as of now.


This feature detects the number of people in the room and adjust the temperature of the AC accordingly.

Frequently Asked Questions (FAQs)- Best Window AC

What is the lifespan of a window AC?

Window AC can typically last for 8 to 12 years.

Which are the best brands of window AC?

LG, Voltas, Blue Star, Panasonic, Hitachi & Carrier are some of the top window AC brands.

Should I buy stabilizer for window AC?

Split ACs usually come with stabilizers that can withstand decent range of voltage. On the other hand, most window ACs do not come with an inbuilt stabilizer. Therefore, buying an external stabilizer with a window AC is a smart move.

What is the biggest advantage of window AC?

Window AC are one of the most cost type of air conditioners in the market. Also, it is easier to install a window AC as compared to a split AC.

What is the difference between 5 star and 3 star window AC?

5 Star window AC consumes around 52 units less than a 3 star window AC on a monthly basis. Which translates to savings of Rs 1670 over a period of 5 months, which is the average amount of months an AC is used in an year.

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