The summer season is one of four seasons that is much awaited by everyone. It is during this time that the holidays and vacations start. The children and their parents are bathed in the rays of the sun, even when seated within the four walls with a three-wing instrument rotating above their heads. The flow of air from this instrument, however, does not wipe out the rays nor protect them from the heat. Instead, the heat waves generate a flow of salted water that drops from their forehead.

It is during this time that the family ponders over the appliance that cools them down from the heat rays – the air conditioner. Serving a multitude of purposes, the AC not only relieved the dwellers of the house but also the employees seated at the office with a colored screen opposite their faces. 

The market today has an abundance quantity of Air Conditioners displayed across various showrooms manufactured by twenty-plus manufacturing companies. Be it a split or a window air conditioner, the demand for these products is increasing across all segments of customers. The price does not halt the customers from purchasing the product as the market attracts them by providing them with various offers like; payment through EMIs, the festive season offers, and an extra warranty on the product. 

Suggestion: Read the buying guide to understand the technologies and features such as Inverter Technology, Motor Type, Condenser and Compressor, and more.

Best Air Conditioner Brands in India 2024









Blue Star

Top 10 Best Air Conditioners in India 2024

MarQ 1.5 Ton 3 Star Split Inverter AC (FKAC153SIAINC, Copper Condenser)


The MarQ 1.5 Ton 3 Star Split Inverter AC is one of its kind for household and commercial purposes. MarQ air conditioner is a product to look out for if one is trying to save on electricity bills. The technology used in the air conditioner is Rotary Compressor.

It comes in White color, neatly packed in a box with the necessary installation accessories. The 3 Star AC which comes at around Rs.26, 999 gives tough competition to other ACs with its given price and cooling capacity. The air conditioner has been designed keeping in mind the customer’s needs for style.

One need not hesitate in turning on the AC for longer hours during peak summers. This feature is the USP for this product and makes it withstand the other competitors in the field of air conditioners.

The remote has a distinctive feature of glowing lights, which means one can operate even when the lights are switched off. It offers a turbo mode, which leads to instant cooling of the room in case of very warm temperatures. Inverter technology saves energy while regulating the outflow of refrigerant.

The air conditioner has copper internal parts which allow for quick cooling and lower power consumption, providing customers with a cost-effective way to enjoy cool air.Copper pipe may not be available.
With its hidden display feature, sleepy eyes get a good rest as the light can be turned off which can be operated through a remote.In spite of the drawback of the absence of an anti-bacterial filter, it can still clean the impurities with the help of the dust filter attached to the air conditioner.
It safeguards the surroundings, thus making it an environmentally friendly product.
The compressor of the air conditioner is built to bring down the overall energy consumption.
Gold Fin technology enables the internal parts from getting rusted in the long run by preventing the collection of water droplets on them.

Whirlpool 1.5 Ton 3 Star Split Inverter AC – White (1.5T MAGICOOL PRO Plus 3S COPR INV, Copper Condenser)

Whirlpool 1.5 Ton 3 Star Split Inverter AC - White (1.5T MAGICOOL PRO Plus 3S COPR INV, Copper Condenser)

The Whirlpool Company came into existence around the 1980s. The Whirlpool 1.5 Ton 3 Star Split Inverter AC can be used effectively at workplaces or homes. Its installation type is a wall-mount and focuses on customer satisfaction which makes it the most enviable product in the field of air conditioners.

The technology used in the air conditioner is Intellisense Inverter. The power consumption is comparatively less. The noise pollution by the product is also very low. The air conditioner comes at a very reasonable price with low maintenance costs which makes it quite affordable.

This air conditioner is equipped with Magic Cool Pro and a Copper Condenser, ensuring efficient cooling and regulated airflow. It also has eco-friendly features and comes with a 1-year product warranty and a 10-year condenser warranty.

The air conditioner can be connected directly to an inverter, ensuring uninterrupted cooling even during power cuts.Does not have a 4-way swing.
One need not worry about the harmful emissions of the air conditioners in the environment.Although this air conditioner doesn’t have an Antibacterial filter, it has a HEPA filter that effectively fights against airborne bacteria in the house.
This air conditioner is highly resistant to power variations, reducing the need for frequent repairs and maintenance and saving customers from high maintenance costs.
HEPA Filter media generously cleans the airborne microbes present inside the home or office.
It has a self-diagnosis facility which means it can identify itself if there is any disturbance in the air conditioner due to which it’s not working.

Midea 1 Ton 3 Star Split AC (12K 3 Star Santis PRO CLS R 32 Fixed Speed, Copper condenser (White)


It’s a China-based electronic manufacturing company. The air conditioner has a cooling capability of 1 ton, which is very efficient for any household or small scale industry. The Air conditioner works on Rotary Compressor Technology which is very helpful in residential places or small offices. It not only produces less heat but also produces more air. It has an energy rating of 3 stars which means that it is good at consuming less power and generates very little noise when the air conditioner is turned on.

The presence of a feature called child lock which activated prevent the child from operating the AC makes it extremely safe for children. Its internal coils are made up of copper metal which is good in consuming less power. However, few toxins and dust particles escape from the filters so the air quality may not be very much clean. The customer can run the air conditioner in the seasons like rainy, summer, or winter as it offers different modes like cool, and dry as per his choice.

Instant coolness even in the warmest or hot temperatures.Copper pipe may not be available.
Prone to be bacteria-free as it contains strainers to removes the toxins and germs present in the air.Despite the lack of an Antibacterial filter, this air conditioner has an HD filter that efficiently cleans the air of toxins and impurities.
Prone to be bacteria-free as it contains strainers to remove the toxins and germs present in the air.
Consists of air purifiers necessary to remove any airborne pollution in the room or offices.
Produces very little noise and has low power consumption making it environment-friendly.

Carrier 1.5 Ton 5 Star Split Inverter AC – White (18K 5 Star Hybridjet Inverter R32 ODU (I015), Copper Condenser)


It’s a modern Air Conditioner which is very robustly designed to suit the demands of the changing climatic conditions and work pressure. The brand Carrier is associated with originality and sustainable development.

This model of an air conditioner is an edge over the others as it offers certain distinct features like an operation button, refrigerant leakage detector, self-diagnosis which makes the AC quiet ahead of time.

It saves around 25% of power which makes it the best choice in the long burn. It is smartly designed to generate maximum coolness with the utmost power-saving ability functioning on Flexicool Hybridjet Inverter Technology. Its cooling mechanism uses less power and looks forward to sustainable power.

It has been made to curb the growing demands on power and harmful impact on the environment. With its power-saving ability to generate instant cooling temperatures, it’s bound to a long way. The company believes in providing maximum satisfaction to the customer with less impact on your finances. It sets an example for the coming ACs to provide maximum satisfaction with fewer environmental effects. The presence of an R32 refrigerator makes it green and economical.

The AC is robustly designed that it quickly reduces the room temperature without freezing which is an innovative design in the AC industry.In spite of the absence of the bacteria filter which is meant to clean the small microbes, it has a dust filter inside the air conditioner which takes its place.
The air conditioner has been designed to function even without a power stabilizer.
It has different temperature modes which can be set according to the prevailing climatic conditions, meaning it can be used in any season.
The child lock facility can be activated to prevent the children from using the air conditioner.
Refrigerant Leakage Detector is a tool that detects the leakage of the gases that are present in the air conditioner, which otherwise can be dangerous.
Flexi cool technology enables the best cooling based on the temperature in the room.
The Auto-restart feature of this air conditioner automatically starts and repeats its operation based on the room’s temperature and humidity without any manual intervention.
Sleep mode provides comfort in keeping the temperature balanced during sleep.

Voltas 1.4 Ton 3 Star Inverter Split AC (Copper, (R32), White)


Voltas is established and is also a very popular brand in the current Indian online market Scenario. Volta’s products are available at stores like Amazon, Flipkart, Snapdeal, Paytm Mall, Shopclues, Tatacliq, and many more.

This Voltas 173V JZJ Inverter Split AC is among the Best-Selling Air Conditioners in India. The AC is powered by DC Inverter Technology, and also it reduces power consumption by maintaining a stable temperature without turning the compressor on and off, so you can enjoy complete peace of mind. It promises you pleasant days ahead and also a retreat from the heat. It consumes less power and saves energy. Also, features a Self Diagnosis feature that detects the cause of any malfunctioning in any part of the unit for easy servicing. The extended design with Sleep Mode, Turbo Mode, and Anti-Dust filter promises a full package for healthy and fit living.

Eco-Friendly RefrigerantOxygenator not present but Anti-bacterial filter makes up for it
Sleep Mode
Twin Rotary BDLC Steady Cool Compressor
4 Stage Filtration
High Ambient Cooling
Super Silent Operation
100% Copper with Wide Voltage Range Operation

LG 1.5 Ton 5 Star Dual Inverter Split AC (Copper, KS- Q18HNZD, White)


This LG’s DUAL Inverter Compressor has a wider rotational frequency which helps in saving more energy along with a higher speed cooling range than other conventional compressors. This also ensures that our DUAL Inverter ACs cool faster, run quieter, and last longer.

LG Air Conditioners with the unique Himalaya Cool Technology promises you to cool as soon as you switch on the AC. With just the touch of a button, you will feel cool as if you are in the Himalayas.

Ocean Black Protection applied to both Outdoor and Indoor unit provide exceptional durability for the AC in typical Indian Regions which are highly affected by sand, salt, industrial smoke, and pollutants.  

Grooved Copper gives us two benefits:

  1. Enables the oscillatory movement that stops the refrigerant for better heat dissipation.
  2. The Grooves also strengthen the overall pipe structure which can withstand high pressure.

LG ACs avoid costs and save energy by taking advantage of their Active Energy Control. This limits power consumption from 40% to 80% of normal usage and also saves up to 57% of energy.

Smart Diagnosis SystemInstallation may not be free
Gold Fin CondenserWi-Fi
Active Energy Control
Ocean Black Protection
5 Star Rating
Dual Inverter
Low Refrigerant Detection

Whirlpool 0.8 Ton 3 Star Split Inverter AC – White (MAGICOOL INVERTER COPR-W-I/ODU, Copper Condenser)


Don’t let the summer heat get to you – bring home this Whirlpool AC, and experience a cool, soothing, and pleasant summer. Equipped with the 6th Sense Fast Cool Technology and Turbo Cool Technology, this AC will ensure all-around cooling. 

Provides Instant and Uniform cooling when switched on. Advanced Inverter Technology that adapts to your cooling needs, reduces electricity usage, and keeps power consumption low.

MPDI Technology- Multi-Port Fluid Injection Technology uses a 4*4 evaporator circuit design for rapid heat exchange resulting in enhanced cooling capacity and it also saves power.  

Choose Eco Mode to save more energy without even compromising the cooling. It also has a Self Clean Function that prevents bacteria and fungal growth in the AC, with low maintenance and no foul smells. It also has an in-built stabilizer. The Stylish and Sleek AC will add class to your living room.

6th Sense Fast Cool TechnologyThere is no Wi-Fi
IntelliSense Inverter Technology
Advanced MPFI Technology and Turbo Cool
Stabilizer-Free Operation
Ideal for Extreme Temperature
100% Copper Condenser

Voltas 1.5 Ton 3 Star Window AC – White (WAC 183 DZA, Copper Condenser)


Severe weathers are no more a hassle with this Voltas 183 DZA Window AC which fits to provide refreshingly cool air to our home. It is designed to maintain the set temperature effortlessly. This AC also comes up with Turbo Mode, Sleep Mode, and Anti-Dust Filter and also promises a complete deal for healthy and happy living. Featuring Self Diagnosis feature, which enables us to detect the malfunctioning in the unit for easy servicing.  

The AC offers you high ambient cooling, an active dehumidifier, and a multi-stage filtration function. Gives you instant cooling even at a very high temperature like 50 degrees Celsius. Turbo Mode helps in cooling the room instantly. Multi-Stage Filtration Advantage removes allergens, odors, and also other harmful particles to give you fresh and soothing air all the time. It is also eco-friendly and it consumes less power and saves on energy.

Rotary CompressorInverter Technology
Anti-Bacteria FilterNo Wi-Fi
Dust Filter
Turbo Cool Mode
Memory Function

Sanyo 1.5 Ton 5 Star Dual Inverter Wide Split AC (Copper, White)


Japanese brand Sanyo is leading in today’s world and is having a healthy legacy of 7 decades. It brings you with up to date AC technology with the Sanyo Inverter Series.

Sanyo offers complete peace of mind by giving timely service to customers through its wide network of over 350 service centers in India. This Sanyo Inverter AC is designed keeping in mind the unique climate conditions of India, also gives optimal cooling at your own home whilst keeping electricity bills low with its energy-saving Japanese Inverter Technology. Sleek and elegant design with tastefully hidden temperature display.

It also has the lowest-noise operation and the variable speed compressor which adjusts power depending on heat load. It also offers a percent copper condenser coil which provides better cooling and requires low maintenance. Hydrophilic Fins in this Sanyo AC ensure superior protection against rust and salt damage. It also has refrigerant gas of R32 which gives you no ozone depletion and also low global warming potential. It protects the condenser from accidental fire while ensuring zero damage to the ozone layer.

Timer Function turns in Sanyo Inverter AC and turns on/off automatically at the desired time at the touch of the button. So, no more waking up in the middle of the night to switch on/off the AC. Sleep Function in this AC auto-adjusts temperature for a beautiful and comfortable sleep. Inside the box: doors unit, indoor unit, remote, piping assembly, power supply cord for indoor to outdoor, power supply cord for indoor to main, AAA batteries, assembly manual, warranty.

Dual Inverter technologyChild Lock
Dust Filter
Air Purifier
5-star rating

Blue Star 3WAE081YDF Window AC (0.75 Ton, 3 Star Rating, White)


Bring home this 0.75-ton 3 Star Window AC from Blue Star. This AC is perfect for homes and offices that have small and medium-sized rooms. This AC consumes much lower electricity compared to a normal window AC. Blue Star in India holds a very good reputation for the quality of their ACs and also for after-sales service. It comes with 5-Year Warranty on the compressor and 1-Year Comprehensive Warranty. There is also free maintenance for the AC within the 1st Year.

The outdoor units of this AC are 100% copper and are precisely designed to ensure the maximum efficiency of the cooling system. The front panel of indoor units can be detached easily for cleaning. It helps in maintaining the AC. It intelligently senses the variation in indoor temperatures and outdoor temperatures and adjusts automatically to keep you comfortable throughout the night.

High-Efficiency Rotary CompressorHold and Cold – Winter warming
Dry ModeTriple Filter
Elegant Cleanable Panel
Anti-Freeze Thermostat
Metal Disclosure for PCB
Eco-Friendly Refrigerant
Multi-Fan Speed
Hydrophilic Blue Fins
Anti-Corrosive Blue Fin Condenser

Buying Guide

Working of an Air Conditioner

An air conditioner typically works by replacing the hot air in a space with cooler air. This process involves:

  • Evaporator
  • Compressor
  • Condenser
  • Expansion Valve
  • Refrigerant

The Evaporator collects the heat from within the room through a refrigerant. This refrigerant in its liquid state absorbs the collected heat and becomes gas. Now this gaseous substance is compressed through a compress which is located installed outside the house. The condenser, which is also situated outside the house, then takes this gaseous substance and converts it into a kind of liquid. The expansion valve, which is located between the condenser and the evaporator, keeps a tab on the number of refrigerants that move toward the evaporator.

Size of the Air Conditioner

For this, you must first and only cater to the wattage because that would take care of the rest. For smaller rooms, the wattage could be around 2.5 to 3 kilowatts but if the room is bigger, your wattage capacity needs to be as huge as 9 kilowatts. The wattage measurement generally is 0.15 kilowatts per square meter. Selecting the wattage efficiently would bring a lot of peace in the way the Air Conditioner works. If the wattage doesn’t justify your room, you wouldn’t be satisfied with the money you’ve spent.

How to measure the size of your room? Simply multiply the width along with the length. Be it a window-based Air Conditioner, or a split system, if your room has good insulation, a good 1 to 1.5 kilowatts per 10 sq meters of the area would do the trick for you. The insulation of the room and the temperature outside also play a major role along with the size of the room. The tonnage should only be determined to keep in mind the windows and doors in the room, the ceiling length, and the weather in which the room or the house is situated.

The size of the air conditioner also depends a lot on your budget. Simple and less powerful ones would cost way lesser than the ones with more power.

Type of Air Conditioners

To keep things better, there are many portable Air Conditioners with a window and a plug gracing the markets. Buy one of these, and have an Air Conditioner everywhere you go. But the real deals are the split-screen and Window Air Conditioners.

The calculation of the power consumption of any Air Conditioner is done by understanding the relationship between the power usage and the hours it has been used. For any home, an Air Conditioner working for 9 hours is taken as normal and that spends almost 3500 to 5000 watts. So, it depends on the consumption at that particular point, and especially hotter months would have more consumption than the cooler ones.

Window Box Air Conditioners

When the room is decently small or medium and you don’t need a very gripping system of cooling, you go for the Window Box Air Conditioners. Generally, people go for Window Air Conditioners because they are the most affordable out of the three types, the other two being Portable Air Conditioners and Split Screens. Some Window Box Air Conditioners require very strong wiring and connection to handle the power, so a good electrician must always be contacted for this purpose. But, the installation of these air conditioners is always very easy.

Split Systems Air Conditioners

To make matters cooler than cool, split systems Air Conditioners have graced the markets since long. The huge craze for split system Air Conditioners is for two things:

  1. The cooling and heating capacity of the Air Conditioners. It doesn’t just cool, it also heats up when you require the room to be all heated.
  1. Split System Air Conditioners look very good. It stays at the top of any wall in your room and does not need to be as tightly fixed as Window Air Conditioners.

The split Air Conditioners, though quite expensive, happen to have a lot more power than the other two types, namely Portable and Window Air Conditioners. The air purification system which contains the allergen filtration in some of the Air Conditioners is also commendable.

If you are buying a split-screen Air Conditioner means you have a larger room. Honestly, one split screen Air Conditioner with good tonnage could work for two rooms if there are good enough ventilation between the two rooms. Any type of Air Conditioners, be it split or window would always require an expert as an electrician because Air Conditioners installation is no joke.

Size of the Room

The room’s size is generally the one that decides on the size of the Air Conditioner. Generally, smaller rooms, preferably 20 square meters or lesser than that do not large Air Conditioners and Portable or Window Air Conditioners are the best for these rooms. For these rooms, an Air Conditioner about 2kilo watts to 4-kilo watts would do wonders.

Now, the rooms which we call medium-sized that is, rooms with sizes between 20 and 40 square meters have to have air conditioners that range from 4-kilo watts to 6-kilo watts.

For rooms larger than these, 9 kilo-watts is the minimum.


The air conditioner typically uses two coils for the purpose of cooling:

  • Evaporator Coils
  • Condenser Coils

The evaporator and the condenser coils are a major part of the cooling process. Unlike a furnace, an air conditioner does not produce cool air, rather it makes sure the heat inside the room is taken outdoors and does not make the room suffocated and hot.

The evaporator coil is the place where the absorption of heat takes place, that is to say, the place where cold air rests. It is typically always located near the blower fan, and should always be kept clean just like the entire air conditioner. Any layer of the thinnest dust or dirt would impair the evaporator, hence disturbing its job. If the evaporator is, in any way disturbed, the condenser would always act faulty. That is the reason the evaporator and the condenser are always given more priority while cleaning the air conditioner.

Condenser Coils

The condenser is always outside the house and helps the evaporator release unwanted heat. Therefore, the airflow must be good and is very critical for your air conditioner. No dust or dirt should ever shape up in the condenser as it is always outside and fully exposed to the atmosphere, which is one of the major reasons for the formation of thick dust in and around it.

Before buying any kind of air conditioner, see to it that the evaporator and the condenser and well placed and work efficiently. These two need to work simultaneously otherwise, the Air Conditioner wouldn’t be fit to use.

Now, for the debate between the two leading coil metals, aluminum, and copper coils, the heat resistance is more in copper since it has a way higher coefficient in heat transfer. But, copper being a costlier metal is mostly avoided by manufacturers to avoid extra charges in the making and the ones that genuinely use copper are available at high prices in the market.

Since aluminum can bend easily, the question of pliability makes aluminum win over copper. When a little bit of aluminum could do wonders, three times more copper would have to be used to do the same. Hence, aluminum wins hands down here.

Thin copper coils are being used and made so that the air conditioners don’t miss out on the good qualities of copper. So, the suggestion would always be to go with air conditioners that have copper coiling but aluminum is no less and could be proved more efficient in small and medium-sized rooms.

Copper, though expensive stays for a longer time than aluminum, although nowadays both of these are used together.

Cooling Capacity

If we are to judge the cooling capacity of any Air Conditioner, the first three terms that come to mind are the Blue Fin, Microchannel Condenser Coils, and Gold Fin.

Blue Fin means coating any condenser or evaporator with a kind of resin called epoxy that contains the epoxide functional group. These are resistant, flexible, and also can resist any type of bad weather. The main advantage of epoxy is that it does not react to the salts and acids created in the atmosphere which helps the coating to remain for a good amount of time. The fins are always well protected by an epoxy coating which adds to the last of the said fins.

Gold Fin is a water-resistant coat that helps the coil from decay by forming a good hindrance between the atmosphere and the coil. The main difference between the two famous coats is the type of material used in the coating. Not much difference could be observed if one is used over the other.

Micro Channel Condenser Coil Technology, as the name suggests are tubes with various micro-channels for making it easier for the refrigerant to pass through. It reduces the risk of galvanic corrosion and also makes the entire system more portable and easier to install or use. Microchannel condenser coil technology is the modern method and makes Air Conditioners more efficient and resistant. It also helps in making the process of heating and cooling much more coordinated.

Between Bluefins and Gold fins, the latter helps in the defrosting process, thus making the AC more efficient with an improved outcome. Gold fin condensers do not rust that easily, keeping the entire system protected for longer. It is free of toxicity which adds no further negativity to the environment.


A compressor in the air conditioner is used to reject and remove the excessive vapor and heat from the evaporator that is situated in the air conditioner. The main job of the compressor is to squeeze and compress the already existing vapor and make it smaller in volume while keeping the temperature relatively high.

There are five important types of Air Conditioner compressors:

  • Reciprocating
  • Rotary
  • Screw
  • Scroll
  • Centrifugal

Out of these, the two most popular compressors are Reciprocating and Rotary. For Reciprocating, a piston is usually in charge of compressing the air inside a cylinder. The piston, as it moves down creates a vacuum that takes the refrigerant in. Reciprocating compressors show brilliant efficiency and can easily accommodate 7 cylinders.

For Rotary compressors, if you believe in quietude, this is the best for you. These compressors are tiny and work quietly using blades in a shaft. Through the process of the shaft rotating, the refrigerant is gradually pulled in and pushed out.

If a comparison comes between the two, there would be no clear choice but if the concern is noise, one should go for rotary compressors, and if the easy maintenance, the clear choice is reciprocating compressors.

Also, rotary condensers can take in more pressure so they are used for large-scale jobs with air conditioning.

Refrigerant Types

Refrigerant is a compound mostly found in the form of liquid or gas. It absorbs heat from the environment and provides refrigeration or air conditioning when it is combined with different components such as compressors and evaporators.

Without refrigeration, there would be no Air Conditioning.

Refrigerants in ACs absorb fluid and release heat. Other than this, Thermodynamic phenomena of phase change are the process that is also used by refrigerants. This helps the liquid to convert to gas and vice versa.

The refrigeration process starts in the evaporator component of the system. The refrigerant liquid will absorb heat and change to vapor under low pressure. Then, the vapor travels to the compressor component of the current system.

The compressor pressure and temperature increase. The release of heat from the vapor happens at this stage. It happens in the condenser component. And then, the refrigerant changes back to liquid form and it travels back to the evaporator. Repetition of the process happens again and again.

The classification of refrigerants into different groups is due to the chemical composition of it. The most common refrigerants include chlorofluorocarbons (CFCs), Hydrochlorofluorocarbons (HCFCs), Hydrofluorocarbons (HFCs), and natural refrigerants.

Halocarbons are synthetically produced. The classification depends on the chemical elements chlorine (Cl), hydrogen (H), carbon, and Fluorine (F).  

Chlorofluorocarbons (CFC’s) – R11, R12, R113, R114, R115

Hydrochlorofluorocarbons (HCFCs) – R22, R123

Hydrofluorocarbons (HFCs) – R134a, R404a, R407C, R410a

CFCs – Chlorofluorocarbons

These refrigerants contain chlorine, fluorine, and carbon. R11, R12, R13, R14, and R15 are included in CFC refrigerants. This type can be used for commercial as well as daily purposes. Before late in the 30s it was non-toxic, non-flammable, and non-reactive.

But in the 70s, it proved hazardous for the layer of ozone and unfriendly to the environment. The chlorine atom splits the extra oxygen atoms in the ozone, so it is liable for ozone depletion.

In the late 80s, it was banned because of adverse environmental effects.

R11, R12, R13, R113, R114, R500, R502, and R503 are the top refrigerants of CFCs. Some of them produce greenhouse effects.

HCFCs – Hydrochlorofluorocarbons 

HCFCs are generally referred to as the substitute for CFCs. It contains hydrogen, carbon, chlorine, and fluorine. It affects around 10% of the ozone layer.

HCFCs are non-toxic, cheap, and competent. Even if they do not harm the environment they are known as greenhouse gases. They deplete the ozone slowly but continuously.

R22, R123, R124, R401A, R401B, R402A, R403B, R408A, R409A, R414B, R416A falls under the group of HCFCs.     

HFCs – Hydrofluorocarbons 

They do not include any particles of chlorine. So, they are not harmful at all and do not deplete the ozone layer. They have a powerful impact on global warming.

After the ban on HCFCs, this group comes in. It includes carbon, hydrogen, and fluorine. So, compared to other refrigerants, it has a lower potential for global warming.

This group is always in demand because of its environmental stability. This group includes R23, R134a, R404A, R407C, R410A, R417A, R422A, R422B, R422D, R507, R508B.

Natural Refrigerants

They are completely natural and not created by men like the other ones. They are less costly compared to other refrigerants.

Examples of natural refrigerants are Air, CO2, HC, ammonia, H2O, etc. They have negligible effects on global warming and also have zero depletion of the ozone layer.

The most common refrigerants nowadays are:

R-134A (HFC)

It is also a halo alkaline refrigerant and has a Thermodynamic process. It uses a special oil blend of polyol ester or polythene and is a better choice for the environment.

R – 407C

This one has thermodynamic properties and is a replacement refrigerant to retrofit R-22 equipment. While it works in refrigeration systems with medium temperatures and is an alternative to freon, it is safe for the environment.

R – 404A

A safe alternative to R-22. It has a wide temperature range that makes it useful in the industrial and commercial transport industries.

R – 404A is available in many stores that sell cooling as well as heating products.

It does not react rapidly with air or water and is colorless, odorless, and inflammable. Direct contact can cause frostbite.

R – 410A

It is a blend of difluoromethane, two hydrofluorocarbon refrigerants, and also pentafluoroethane. It is a non-ozone depleting refrigerant.

Chlorine is not present and provides better energy efficiency than other refrigerant types like R-407C and R-22. Helps in providing better performance and high refrigeration capacity and pressure makes it more suitable than R-22.

Inverter Vs Non-Inverter Ac

Inverter Air Conditioner

An inverter is a device for converting frequency. This technology is used in many home appliances and controls the electric voltage, current, and frequency. Inverter AC varies their cooling or heating capacity by adjusting the power supply frequency of their frequency of compressors. It has accurate temperature control and as the same temperature is obtained, the unit adjusts its capacity to eliminate any temperature fluctuations.

Non-Inverter Air Conditioner

Non-Inverter ACs have a fixed cooling or heating capacity and can only control the indoor temperature by starting or stopping the compressors. It starts and stops repeatedly. They are cheaper and more accessible. More suitable for industrial applications, as well as cooling load fixed.

Inverter ACs are better than Non-Inverter ACs

The biggest difference between inverter and non-inverter AC is that the motor of the inverter compressor has more speed. Whereas, the speed of the non-inverter compressor is fixed. So, it operates at either full or minimum speed. While, in inverter AC the sensor adjusts the power according to the temperature of the room, saving energy and also lowering the electrical consumption.

The compressor of the AC does not work at its full capacity all the time due to the sophisticated operational method of the inverter. So, when the speed is lower, the energy will also become lower and you will have to pay less money for electricity.

The compressor motor of the inverter AC does not turn off and on all the time, it keeps working at a lower time, and the operation is quieter.

The technology of the inverters makes cooling and heating more efficient but it also makes the ACs life longer.

The inverter AC can cool or heat your room faster than the non-inverter AC. It is because, at the beginning of the process, the inverter uses more power and also diminishes the power when it gets close to the desired temperature. Inverter AC is expensive but a long-term investment with many benefits like the form of low maintenance cost, lesser power bills, and better performance while the non-inverter AC is comparatively cheaper and is also good enough to cool a room.

Star Ratings of Air Conditioners


EER – Energy Efficiency Ratio is equal to the amount of heat removed by the AC per hour which is divided by the power consumed by the particular AC. AC with higher EER defines the higher efficiency in it. The accepted norm of this star rating is 27 degrees inside the room and 35-degree outside the room and the humidity is 50%.

Equation: BTU/hr/Watt

The ratio of EER is measured by BTU and Watt where BTU is for cooling capacity and Watt for power inputs.

EER costs more during the purchasing, and in the long run, it can save the money of the customer.

The portable AC has higher EER ratings and gives the same saving in homes and large business sectors. 


BEE – Bureau of Energy Efficiency

An agency of the Government of India established under the Ministry of Power. It is an autonomous government agency that introduced the conservation and efficient use of energy in many electrical appliances in our country.

BEE Star Rating is the capacity of the appliance according to the volume, storage volume, and electricity it consumes per unit.

The main purpose of the BEE star rating is to educate and inform the customers about the energy efficiency of the product they are willing to buy.

The BEE Star Rating program updates every year. As technology improves and more and more energy-efficient appliances are introduced, the labels are trusted accordingly.


ISEER – Indian Seasonal Energy Efficiency Ratio

It means that the total amount of heat can be removed by the AC from the indoor air with the total amount of energy it consumes when it is in the active mode of cooling.

A new method of star rating introduced in India known as ISEER.

The concept of ISEER is based on many terminologies based on BEE as per the different climate profile

i.) CSTL – Cooling Seasonal Total Load = It means the total amount of heat that can be removed by the AC from the indoor air when it is the inactive mode.

ii.) CSEC – Cooling Seasonal Energy Consumption = It means the total amount of energy consumed by the AC when it is in active mode for cooling operation.

So, the equation of ISEER is CSTL/CSEC. 

Window AC And Drawbacks

Window AC is referred to as a room conditioner as well. It is the simplest form of the AC system and is fixed on windows or walls. A single unit is assembled in a casing where all the components are located.


  • Not all windows support AC. Fixed and casement windows do not accommodate window A/Cs.
  • The overall efficiency of the AC process is usually less than other AC options. So, it is important to purchase a unit with Energy Star.
  • Blockage of outside view after installation of the window AC.
  • It usually requires exterior support. Stories of units falling out windows, even during installation, are very common.
  • The installation panels that come in within come with a lot of hot air, which is exactly the opposite of what you want. 
  • Even the best installation may still leave your home or apartment with the security lock.
  • As Air Conditioners cool, they also dehumidify indoor air, and that water also must go somewhere.
  • The appearance of many window units in a living area may affect the decor.
  • More of a hassle to remove and move to another room or location.


For a ‘desirable’ product, Air Conditioners have become a necessity due to the changing climatic conditions. Amidst never-ending work and tight deadlines, customers are looking out for a cool mind to work which the air conditioners can only provide. The air conditioner has created an identity of itself among households. It has created a niche for itself in the automobile industry. In the last two decades, electricity consumption has skyrocketed due to an increase in the demand for air conditioners in schools, hospitals, colleges, malls, theaters, and cars. The harmful emissions from the air conditioners have caused irreversible climatic conditions.

The best Air Conditioner is one that satisfies the need for a cooler temperature without putting too much stress on the customer’s finances or the environment. The consumer can decide on the AC of their choice by having a quick look at the features describing it best. Online markets offer EMI options making it convenient for the customer to select the Best air conditioner of their choice.

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3 years ago

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3 years ago

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Gilbert Humphry
Gilbert Humphry
2 years ago

This list looks very helpful for my future purchase. I will bookmark too & will share it with my friends.

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