Top Window Air Conditioners [2023]: In-depth Reviews & Comparison

Best Window Air Conditioners

Window air conditioners offer a convenient and cost-effective solution to beat the heat, especially for those who live in smaller spaces or apartments. With so many models available on the market, finding the best window air conditioner can be overwhelming. This guide aims to help you make an informed decision by highlighting the top window air conditioners that are efficient, reliable, and can effectively cool your space. Whether you’re looking for a budget-friendly option or a feature-packed model, this guide has got you covered.

Points Considered while Reviewing this Article

There were numerous factors to consider when selecting & reviewing these flour mills for home use. Here I have listed some of the important factors that greatly affected the selection process.

  • Size & Tonn

  • BTU (British Thermal Unit)

  • EER (Energy Efficiency Ratio)

  • Star Rating

  • Noise Level

  • Inverter Or Non-Inverter

  • Installation

Time Spent on this Guide

The total time spent on this guide, from researching about the technology & products to testing them is 16.5 hours.

Time went into research
Time spent selecting the products
2 Hours
Time went into testing
5 Hours

Our Top Picks

Voltas is a popular brand known for its quality and superior cooling performance in less time. It covers a wide range of products from air purifier, air coolers, fridge , water dispensers and air conditioners 

LG has been known for its technological innovation. The company’s product range is vast, including various electronic products such as smartphones, televisions, home appliances, computer monitors, fridges, washing machines, air purifiers, microwaves, and more. The company has a strong reputation for quality, and consumers worldwide widely trust its products.

Quick Comparison of the Top Models

This article is a quick overview & comparison of the best window ac in India. I prepared a detailed review of every model of window air conditioners. I’ve also covered features with advantages and disadvantages, which I found with my perspective to help you in a better way.

Now Let’s see the best window ac available in India.

1.5 Ton

5100 Watt

5 Star

1.5 Ton

5000 Watt

5 Star

1.5 Ton

1750 Watt

3 Star

1.5 Ton

5050 Watt

3 Star

1.5 Ton

1465 Watt

5 Star

Best Window Air Conditioners in India : In-depth Reviews

Here are the In-depth reviews of each model.

9.5Our Score
Best for Medium-sized Rooms

  • Stabiliser Free
  • Filter Clean Indicator
  • Penta Sensor Technology
  • Expandable Inverter
  • Auto Power Save Mode
  • Cascade Vector DC Inverter System
  • Tropical Design
  • Copper Condenser Coil

This Hitachi window AC unit is an exceptional choice for cooling a medium-sized room of up to 150 square feet. 

Its copper condenser coil offers superior cooling performance while requiring minimal maintenance. The filter clean indicator is another convenient feature that reminds you to clean the filter regularly, ensuring constant cooling. The AC also operates without a stabilizer, protecting against power fluctuations ranging from 160V to 255V, leading to energy savings. 

One outstanding feature of this AC is its Penta sensor technology, which uses an advanced microcontroller to provide perfect cooling, even in extreme summer conditions.

This unit works on an expandable inverter technology that can increase its compressor’s rotation per minute (RPM). Also, Tropical Inverter Technology uses a seamless cascade vector DC Inverter system, resulting in better performance than non-tropical inverter ACs. 

The unit also features an auto power save mode, a tropical design, and 100% inner grooved copper tubes, increasing its efficiency and cooling capacity.

Rest assured of your investment, including a 1-year warranty on the product and condenser and a 10-year warranty on the compressor.


What I Liked
  • Economical

  • Easy to install

  • Powerful Cooling

  • Energy-efficient

  • Better Performance

What I Disliked
  • After sales services are not good.

Links to Buy

This LG unit is the best bet for anyone with a proper installation space who doesn’t want to drill holes in their house. Its performance is comparable to a split ac and provides similar features. The dual inverter is also a great addition, making it more energy-efficient than most other window ACs. Also, this air conditioner from LG is an excellent addition if you are looking for powerful cooling. It is best suited for room sizes of 110 to 170 sq. ft. 

LG window air conditioners are designed for easy and efficient installation and come with a washable and reusable air filter. It features a dual rotary/R-32 compressor, making it more energy-efficient and providing better cooling. At the same time, tubes of 100% copper with black ocean protection prevent them from rusting and make them durable, especially for the indian climate affected by smoke, pollutants and dust.

DUAL Inverter Compressor, which eliminates unwanted noise. The indoor unit’s 44dB sound is in the medium loud range – not very quiet. The swing is a 4-way movement, with up and downswings and left and right. On declining gas levels, the device alarms.

The most notable feature of this unit is the SmartThinQ app. With just a single touch, you can manage it entirely. For example, you can set the temperature, change the mode or simply give voice commands via google assistant and amazon Alexa.

It comes with a 1-year warranty on the product with 5-year support on PCB and a 10-year on the compressor.


8.5Our Score
Best for Powerful Cooling

  • DUAL Inverter Compressor
  • 100% Copper Tubes with Ocean Black Protection
  • Top Air Discharge
  • Clean Filter Indication
  • Low Gas Detection
  • Stabilizer Free Operation
  • LG ThinQ App & Voice Control
  • Self Diagnosis
  • Low Gas Detection
  • H.D. Filters
What I Liked
  • LG ThinQ App

  • Voice Control Features

  • Smart Diagnosis System

  • Clean Filter Indicator

What I Disliked
  • The remote has not backlit

  • Overpriced

  • Many people are not satisfied due to gas leakage after 1 year.

Links to Buy
9Our Score
Best Value for Money

  • Eco Mode
  • Copper Condenser Coil
  • Turbo Cooling
  • Sleep Mode
  • 100% Copper Condensers
  • Active Dehumidifier
  • Anti-Duster Air Filter
  • Self Diagnosis
  • Glow Buttons
  • Auto Restart
  • Sleep Mode

The Voltas (183 DZA) is a good choice if you are looking for an energy-efficient and durable air conditioner. It has many features that make it a desirable proposition for your home.

This A.C. is appropriate for rooms sized between 111 and 190 sq ft. It has a 5-star rating from the Bureau of Energy Efficiency, making it one of the most energy-efficient A.C.s.

It features a high EER rotary compressor with R-32 refrigerant making it more energy-efficient and eco-friendly. The noise level of the indoor unit is 54 dB. 

Its Turbo Cooling function helps in the room quickly and efficiently while the blower ensures uniform cooling. The sleep mode reduces the temperature, so you can sleep comfortably at night. An active dehumidifier is the monsoon feature that does not let the bacteria grow and helps ease breathing. The button makes it easy to use in the dark.

It comes with a 1-year warranty on the product and a 5-year warranty on the compressor.



What I Liked
  • Quick and Uniform Cooling

  • Easy to Use

  • Easy to Install

  • Better cooling

  • Lower maintenance

What I Disliked
  • The noise levels are 54 dB which is a bit on the higher side.

  • Non-inverter compressor

  • Warranty is not good

Links to Buy

This air conditioner from Blue Star is ideal for those looking for an appliance that is eco-friendly and offers excellent cooling. 

The Blue Star (WFA512LL) Window A.C. has several features that make it a perfect choice for your home. This ac is appropriate for medium-sized rooms (111 to 150 sq ft). 5 Star rating makes it energy efficient. It is also a good choice for those who are looking for an efficient A.C. with excellent cooling performance.

The 100% copper condensers and the high-energy efficient rotary compressor make this A.C. very durable and offer superb cooling. Moreover, The anti-corrosive blue fins protect the condenser from corrosion, increasing its lifespan.

In a highly humid area, the dry mode is beneficial as it helps remove excess moisture from the air, making the room more comfortable. At the same time, eco mode conserves energy automatically by adjusting the A.C.’s settings to ensure optimal performance.

Blue Fins Protection makes it durable and long-lasting. If there is a power outage, the A.C. will automatically restart and resume operation at the last-used settings, which is very convenient.

It comes with a 1-year warranty on the product and a 5-year warranty on the compressor.



8Our Score
Best Ecofriendly Option

  • Rotary Compressor
  • Blue Fins Protection
  • Auto Restart with memory
  • Self Diagnosis
  • Humidity Control (Dry Mode)
  • Metal Enclosure for PCB
  • Elegant Cleanable Panel
What I Liked
  • Premium Looks

  • Good Services

  • Lower installation cost as compared to others

  • Good Customer Ratings

  • Auto Restart with Memory

What I Disliked
  • Noisy operation

  • The remote is not backlit

  • Uses a rotary compressor, which is less energy-efficient than an inverter compressor.

Links to Buy
8.5Our Score
Best Budget-friendly Option

  • Self Diagnosis
  • PM 2.5 Filter
  • Timer Function
  • 100% Copper Condensers
  • Sleep Mode
  • Eco Mode

The Voltas (183 DZA) 1.5 Ton Window A.C. is an excellent choice for those looking for a. It is ideal for a room sized between 111 to 190 sq. ft. The Voltas 183 DZA has a sleek and modern design that would look great in any home. With a PM 2.5 filter that helps to remove harmful particulates from the air. The timer function allows you to set it to turn on and off at specific times.

This A.C. has a 3-star BEE rating and a rotary compressor, making it a more energy-efficient and durable air conditioner. The noise level of the indoor unit is 54 dB, which is on the higher side.

The A.C. has an eco mode that saves energy by automatically adjusting the temperature. It also has a self-diagnosis function that helps you troubleshoot any problems with the A.C. quickly and easily.

It comes with a 1-year warranty on the product, 1-year on the condenser, and 5-year on the compressor.



What I Liked
What I Disliked
  • Beautiful Aesthetics

  • Particulate matter filter

  • Good Customer Reviews

  • Bit Noisy

  • After sales services are not good

Links to Buy

The Hitachi (RAW518HEDO) is a 1.5-ton 5-star window air conditioner best suited for room sizes of 110 to 170 sq. ft.(medium-sized rooms).

It features a rotary/R-32 compressor that is more energy-efficient and provides better cooling. The noise level of the indoor unit is 50 decibels, which is relatively loud compared to the figures, but according to some customer feedback, the ac is not that loud. Its copper condenser coil requires less maintenance and is perfect for better cooling. It makes the air conditioner durable.

This AC has a clean filter indicator that lets you know when the filter needs to be cleaned, and the auto fan speed feature adjusts the fan speed according to the operation of the compressor.LCD Remote with Backlight allow you to access it from anywhere even in during night times or dark places.

It comes with a 1-year warranty on the product and a 5-year on the compressor.


8Our Score
Best for Medium-sized Rooms

  • On / Off Timer with Advanced Start-Up
  • Power Index
  • Dry Mode
  • Powerful Mode
  • LCD Remote with Backlight
  • Auto Fan Speed
  • Filter Clean Indicator
  • SuperFine Mesh Filter
  • Auto Power Save Mode
  • 100% Copper Winding
  • Auto Restart
What I Liked
  • Economical

  • Easy to Install

  • The smart technology

  • Environmental friendly

  • Tropical Design

What I Disliked
  • After sales services are not good

Links to Buy

Best Window Air Conditioners in India: Buying Guide

Factors to Consider When Buying Flour Mill for Home Use

If you want the best value for your money when buying the best flour mill for home use, you should ensure that it has the following features.

Size & Tonnage

A 1.5-ton window air conditioner is an excellent option for a 120-190 sq. ft room. However, if your room is smaller than this and you don’t want to spend money on a small A.C. unit for such a small area, consider an A.C. with several cooling modes like rapid cooling or turbo. If your space exceeds 190 square feet and up to 270 square feet in size, you’ll need a 2-ton window air conditioner to cool it properly.

Another important factor to consider when it comes to size is the unit’s physical dimensions. You’ll need to ensure that the air conditioner you select will fit in the window of your choice, so be sure to measure the window before making your purchase.

BTU (British Thermal Unit)

The BTU number of an air conditioner indicates how much heat the A.C. can remove from a room per hour. So, the higher the BTU, the more powerful the A.C. unit is. For example, a 1.5-ton window A.C. with a 10,000 BTU rating can remove 150 cubic feet of heat from your room per hour, whereas a 2-ton window A.C. with double the BTU (20,000) can remove 300 cubic feet of heat in that same amount of time. In short, choosing an A.C. unit with a higher BTU will result in faster cooling. Reduce A.C. capacity by 10% if your home is heavily shaded. Increase A.C. capacity by 10% if your home is sunny. Then, for each additional person who usually resides in the space, add 600 BTUs.

In other words, it is more efficient to use an 8,000 BTU unit that runs 75% of the time during hot weather than a 12,000 BTU unit that runs 50% of the time.

EER (Energy Efficiency Ratio)

The EER is a rating that indicates how much energy an air conditioner uses to produce one BTU of cooling. So, the higher the EER, the more energy-efficient the A.C. unit is. For example, a window air conditioner with a 10 EER would use 1,000 watts of power to generate 10,000 BTUs of cooling, whereas a 20 EER unit would only require 500 watts to do the same. In short, choosing an A.C. unit with a higher EER will result in lower energy bills.

Star Rating

The star rating of an air conditioner measures how energy efficient it is. The higher the star rating, the more energy-efficient the A.C. unit is. A 5-star window A.C. unit uses 20% less energy than a 4-star unit and 40% less energy than a 3-star unit. In short, choosing an A.C. unit with a higher star rating will result in lower energy bills.

Noise Levels:

An air conditioner’s noise level (measured in decibels) indicates how loud it is. Therefore, the lower the noise level, the quieter the A.C. unit is. A window air conditioner typically has a noise level between 40 and 50 dB.

If you’re looking for a quiet air conditioner, check the noise level before purchasing. The decibel rating will be listed in the product specs.


Of course, you’ll also want to consider the cost of the A.C. unit before making your purchase. Window air conditioners range in price from INR 25,000 to INR 40,000. The size, features, BTU rating, and EER rating all play a role in determining the cost of the unit. So choose the A.C. unit that best fits your needs and budget.

Inverter Or Non-Inverter

Inverter A.C. helps save electricity by 30-40% if you continuously run it for more than 2-3 hours, and inverter ac is comparatively more expensive than non-inverter A.C.s.
Therefore, if your usage is less than 3 hours daily, you may go for a non-inverter A.C.
For example, if you use a 1.5-ton inverter A.C. for 5 hours daily, your total cost is reduced by more than ₹4000 each year compared to a non-inverter version.
Inverter ac is quiet and has a lower noise level when compared to non-inverter A.C.s. When an inverter ac is turned on, it doesn’t make that irritating sound that a non-inverter A.C. makes.

Warranty and Service

Most window air conditioners come with a one-year to two-year warranty, so double-check the service and replacement terms before buying. Choose a company with a nationwide service network so that you may easily get help if required.


If a unit is installed correctly, it can improve cooling and save energy. As a result, if you install a 1.5-ton unit for a 180 sq. ft. room exposed to direct sunlight, its efficiency will fall by 30-35%, resulting in higher electricity bills. Choose an appropriate installation site and engage the services of a competent and experienced technician.

Advantages of Window A.Cs over Split A.Cs

  • Window air conditioners are less expensive than split air conditioners and suitable for budget-minded consumers.
  • Window air conditioners are also easier to install than split air conditioners. They can be installed in just a few minutes, whereas split air conditioners require professional installation.
  • Window air conditioners are also more compact than split air conditioners, so they take up less space and can be used in small rooms or apartments.
  • Window air conditioners require less maintenance than split air conditioners. Since there is only one unit, there are fewer parts that can break down or require repair.

Disadvantages of Windows Air Conditioner

  • Windows air conditioners can be very loud, making it challenging to enjoy peace in your home.
  • Because they are installed in your window, they can block out natural light and make your room feel more closed off.
  • Windows air conditioners are less energy-efficient in larger homes because they only cool the installed room. This means you will have to run several units to cool your entire home, which can be very costly.
  • They can also be a security risk since they must be installed in an opening in your home. If not installed properly, they can easily fall out of the window, which could cause serious injury.

Tips to Maintain your Window Air Conditioners

Regular cleaning and maintenance of your window ac are essential as it helps in better cooling and performing under good condition while making it last longer. While there are so many cleaning and maintenance tips, there are different things that should be considered for window air conditioners, especially in those summer months after use.

Here are some tips to follow:

Note: The mandate step is to unplug it whenever you perform any cleaning.


Filters are the most important part of any air conditioning unit. Filter helps you provide fresh air with proper airflow by eliminating dust particles. If it is not cleaned properly, it results in blockage or clogged filters, which will not be good for better flow. Generally, replacing a filter in 1 to 3 months is recommended. Some are permanent, so they do require cleaning. Just brush, and they are clear. If required, wash them with soap and dry them after you can reuse them. Whereas some need replacements means you must replace them in a certain period. It is always better to seek professional help while replacing filters.

Condenser Coils and Evaporator

If a filter is dirty and blocking the air and filled with dirt and other harmful contaminants. In that case, it can impact the air quality and degrade the condenser coil quality and evaporator.

Regular cleaning and coil maintenance will help you alleviate the performance. It is recommended to clean the coil every year. 

Method 1

  • Vacuum the coil using brushes.

Method 2

  • Remove the coils.
  • Place it outside.
  • Rinse the coils
  • Rinse off the cleaner and let it dry.

Inspect Coils and Clean them

The outside coil may get dirty from harmful particles and contaminants, which will also impact the unit’s performance. It is essential to check them regularly, and if they get dirty, you can blow air or clean them by using cleaning material with a soft brush. If the coil gets entangled, make sure to strengthen them by using a fin comb.

Clean the Water Pan

It is essential to clean the water pan as it may lead to mildew or mold growth. You can use warm water, soap, or vinegar to clean the base of the pan.

Professional Maintenance

If it is not possible to check the issues regularly or in a timely manner, it is essential to look for professional advice. Schedule your services with the best technician to check for leaks, airflow, and coils, which will impact the air conditioner’s performance.

Window air conditioner maintenance is essential to work this in a proper condition. With these points in mind, you can take care of the window air conditioning units.

Frequently Asked Questions (FAQs)

Which window AC provides the best cooling?

The Volats window AC with the capacity of 175 LZH is the perfect way for cooling, which is ideal for a room size of upto 150 square feet. With a copper condense coil, this ac performs superior in the category with an energy efficiency rating of 5 stars.

Do window AC units use a lot of electricity?

The window air conditioner is cost-effective and doesn’t use much electricity compared to the central air conditioning unit. Compared to central ac, which uses 3500watt, window ac generally uses 500 to 1450 watts. Also, it depends on the requirement. If you want to cool a small space, you can look for window AC, while for a larger area, it is better to choose central AC.

Why is AC not cooling the room properly?

When the AC is not cooling the room properly, dirty air filters and coil may be the reason. The dirt on the filter and coil trap heat and block the airflow, which causes the unit to overheat.

Is it cheaper to run AC or a window unit?

If you are looking for a smaller area to cool, it is better to look for a window air conditioner, whereas if you want a larger area to clean, look for a central ac. For example, if you’re going to cool, complete house multiples will use more energy than a central AC. Choose wisely.

Which AC consumes less electricity?

In comparison to 3-star AC 5-star ACs are more energy-efficient.

What capacity of AC is best suited for large families?

If you have a large house and a large family it is recommended to consider a 1.5-ton air conditioner.

Is it better to leave the AC on all day?

Leaving ac a whole day is more efficient, too frequently turning it on and off. It also provides better humidity control and lowers the humidity level.

Which type of AC is best for home?

An inverter ac provides better and continuous cooling than a standard air conditioning unit. So this is the more energy-efficient and quieter option.

Which part of AC consumes more electricity?

When you set a lower temperature the compressor needs to work for longer time means more consumption of power and if you increase the temperature let’s say 24 degreed the compressor will work for less time and consume less power.

In the END

If you want an air conditioner for a small room or apartment, I recommend a window air conditioner. They are less expensive than split air conditioners and easier to install and maintain. Plus, they come in a variety of sizes to suit your needs.
For a larger room or space, I recommend a split air conditioner. They are more energy-efficient than window air conditioners and can cool a larger area. However, they are more expensive and require professional installation.


Vandana Bhairwa

Hi, I'm Vandana! "A born lover of all things beautiful and inspiring," I'm a full-time author at smart home advice. Born in mount Abu and currently residing in Jaipur. A writer by day and reader by night, I completed my bachelor's in engineering from computer science. I love to write blogs about home and kitchen appliances that help make good decisions. When not writing, you can find me reading books, taking naps, and hanging out with friends! "I hope Smart Home Advice finds what you like the most and figure out the things like I did."

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