In this post, I am going to list down the Best Inverter ACs in India For Home and Office use For 2019.

The Inverter Air conditioners are more effective and utilize less power when compared with the Normal ACs.

An Inverter AC adapts its speed depending on the heat load in the room. Unlike the regular Split ACs, The Inverter Air conditioners have shifting speed motors that adjust their speed according to the requirement. So, Obviously, they consume 30- 40% less electricity.

According to Bureau of Energy Efficiency, an Inverter AC of BEE 3 Star Rating is 7% more energy efficient than a BEE 5 rated normal Split AC. Please note that the Inverter technology is available only for the split ACs.

With Normal ACs, whenever the compressor starts, there will be a slight fluctuation, and when the compressor runs, the room gets chilly, and when it shuts off, the room might get a little bit warm.

But, that’s not the case with the Inverter AC, when you set temperature, After some time, the temperature will be almost constant, and you don’t even notice if the compressor is running or not.

We Highly recommend you to read the AC Buying Guide at the end of the article to get in-depth knowledge about all the latest Air Conditioner technologies.

So, without any further ado, here is the list of Best Split Inverter ACs.

Best Inverter AC

Check out the below list of energy-efficient 1.5 Ton Inverter ACs with BEE 5 Star and 3 Star ratings. Check this Post for 2 Ton Split Air Conditioners. 1 Ton Air Conditioners

Note: The Models below are also available in Multiple Colors.

1. LG 1.5-ton 5-star Dual Inverter Split AC – KS-Q18HNZD

LG air conditioners have a reputation for delivering excellent performance. It explains the popularity of this brand amongst its peers in India. The HNZD model is one of three similar appliances, the YNZA, and SNZD being the other two.

  • Split AC with dual inverter compressor
  • Energy rating – 5 star
  • 100% copper with Ocean Black Protection
  • Other features like Active Energy Control and Low Refrigerant Detection
  • One-year comprehensive warranty with 10 years on the compressor

LG works with a single objective of changing the course of future technology. This LG AC features Dual Cool Technology that helps you save money because of quicker cooling.

Indian conditions demand that the condenser and evaporator tubes require adequate protection from corrosion caused by industrial pollution, sand, salt, and smoke.

This LG AC comes with copper tubes reinforced by Ocean Black Protection to make them incredibly durable.

The Gold Fin condenser can withstand the elements of nature like ozonised air, rain, dust, and other corrosive elements. It thus ensures to extend the lifespan of the AC.

The LG AC features high-grooved copper tubes that enable oscillatory movement to improve heat dissipation. Therefore, these tubes can withstand high pressure. Thereby enhancing the durability of the appliance.

LG AC comes with an excellent cooling score of 5 because of its high-quality cooling performance at high ambient temperatures. The dual cool inverter technology ensures to cool the house comfortably even when the temperature outside is more than 52 degrees Centigrade.

Some of the excellent features include

Active Energy Control:  ensures to reduce power consumption in the range of 40% to 80% thereby saving up to 57% energy

Low Refrigerant Detection: AC can detect low refrigerant levels that can cause the rooms to become uncomfortable.

Monsoon Comfort technology: controls the humidity levels and enhances the comfort factor inside the room.

Smart Diagnosis: Use the LG Smart ThinQ app on your smartphone to check and troubleshoot problems.

This AC does not require the services of an external stabiliser because it comes equipped with the technology of the future to provide the ultimate comfort.

  • Futuristic technology to enhance the convenience factor
  • Power-saving device
  • The dual inverter makes less noise
  • High-quality performance
  • Customers have complained of AC causing some noise as it performs
  • Some users have complained of poor customer service

The LG AC does live up to its reputation for being the best dual-inverter split AC in 2020.

2. Hitachi 1.5-Ton 5-Star Inverter Split AC – KASHIKOI 5100x RSB51HBEA.Z

Hitachi is one of the best Japanese brands of ACs available in India. Known for its high-quality performance throughout the world, this brand does not let its consumers down. It comes with the following spectacular features.

  • Split AC with inverter compressor
  • 1.5-ton capacity to suit mid-size rooms
  • 5-star energy rating
  • Copper condenser coils
  • One-year manufacturer and additional warranty
  • Five years controller and 10 years compressor warranty

This Hitachi AC comes with a speed compressor that can adjust the power consumption depending on the heat load.

This AC is one of the most energy-efficient appliances and is also one of the noiseless performers amongst its peers. The machine has a capacity of 1.5 tons, thereby making it an ideal one to cool medium-sized rooms that you have in Indian flats today.

One of the highlights of this Hitachi AC is the copper condenser coils. It ensures there are no corrosion issues, thereby enhancing the overall lifespan of the AC.

Apart from delivering a high-quality performance, this AC requires low maintenance. Copper does not accumulate rust. Secondly, copper has a high heat dissipation capacity. Therefore, it is one of the best materials to have inside an AC.

The split AC design is an advantage, as the AC comes with an expandable wide-angle deflector to deliver the maximum output. Other notable features of this AC is the on/off timer technology that helps it to save power.

The AC comes with an in-built stabiliser function that can withstand high voltage fluctuations. This appliance does not need the services of an external voltage stabiliser.

  • The AC is an expandable product. Hence it is, in reality, a 1.8-ton AC
  • High-quality performance with the minimum of noise
  • Excellent compressor
  • One of the most elegant-looking ACs in town
  • Worth the money you spend on the AC
  • This AC does not a temperature display. You have to depend on the remote control.
  • Installation costs are separate and not included in the package

Despite these minor inconveniences, this Hitachi AC is one of the best split inverter ACs available in the Indian market in 2020.

3. Daikin1.5-ton 5-star Inverter Split AC – FTKG50TV

Daikin ACs are one of the most popular AC models available in India today. This company is a specialist of sorts in the manufacturing of ACs throughout the world. The model described here comes with the following incredible features.

  • Split AC with inverter compressor
  • 1.5-ton capacity
  • 5-star energy rating
  • Copper condenser coil for better cooling
  • Built-in stabiliser
  • R32 refrigerant gas

The Daikin AC comes with a unique Neo Swing Compressor Technology that is characterised by its quiet and efficient operational capabilities.

The smooth rotational features of the compressor decrease friction as well as vibration. Besides, it also ensures there is no leakage of refrigerant gas during the compression cycle.

The Daikin AC features a power-saving mode, also known as Econo mode. This function limits the maximum power consumption while enabling efficient operations.

The Power Chill mode ensures to reduce the room temperature rapidly, thereby enhancing the comfort factor. It is the perfect feature for providing immediate relief from the scorching heat.

The indoor unit is a silent performer, thereby providing the highest comfort with its low noise levels. Besides, it optimises the airflow speed according to the noise level. Thus, it offers uninterrupted comfort for the entire family.

Daikin ACs can withstand high voltage fluctuations because of the in-built stabiliser.

Therefore, the appliance does not need an external stabiliser at all. The additional advantage of the in-built stabiliser is that it regulates the input voltage.

  • Excellent power savings
  • Superb airflow, comparable with the best in the industry
  • This AC unit is good enough to cool a room with an area of 120 to 150 square feet
    Reasonable pricing
  • There is no temperature display on the AC.
  • Customers have complained of unsatisfactory after-sales service

This Daikin Inverter AC is one of the best ACs available in India because of its excellent performance and power-saving features.

4. Sanyo 1.5-ton 5-star Dual Inverter Wide Split AC – SI/SO – 15T5SCIA

Sanyo has a tremendous reputation for manufacturing some of the best consumer appliances for nearly seven decades. Samsung ACs come with unique characteristics such as,

  • Split AC with inverter compressor
  • 1.5-ton capacity, suitable for mid-sized rooms
  • 5-star energy rating with ISEER value of 4.6
  • Copper condenser coil reduces maintenance costs
  • Excellent features like dust filter and air purifier
  • R32 refrigerant gas

Sanyo ACs come with specific features like full inverter technology, PM2.5 filters, and so on to provide a unique experience. The Dual Cool Inverter technology offers the highest levels of comfort while consuming the least amount of electricity.

This AC compressor comes with two independent rotors to ensure quicker and energy-efficient cooling performance.

The AC features a glacier mode that enables the user to quicken the cooling process by increasing the fan speed by nearly 35%. It allows instant cooling of the room, thereby saving enough power.

The presence of the dust filter and the Pm2.5 filters ensures that you get pure air to breathe. The PM2.5 filters remove pollutants like dust and suspended particles. Thus, you can enjoy good health while enjoying high-quality cooling.

The Eco Function feature helps in lowering the power bills by optimising the performance for energy-efficient operation.

The Auto-Restart feature is an excellent one, as it ensures that the unit starts functioning from where it stopped during a power cut.

The Self Diagnosis feature enables easy troubleshooting by displaying the error codes on the temperature display unit. It helps in making the job of the technician easy.

Some of its other features include

Copper condenser coils: For faster heat transfer and low maintenance because of its resistance to corrosion

Backlit Remote: Makes it easy to operate during the night

Hydrophilic fins: Provide superior protection against rust and salt, thereby enhancing the life of the condenser

R32 refrigerant: One of the most environmentally friendly refrigerants available today

Sleep function: Auto adjustment of the temperature at night to provide a high degree of comfort

Timer function: Set the timer to switch your AC on and off automatically

Hidden display: Adds to the elegance of the appliance

  • Air purification feature is an innovative one
  • Noiseless performance
  • High-quality cooling
  • Energy-efficient
  • The outdoor backside of the AC does not have grill protection, thereby exposing the fins
  • The unit comes with an average remote control

Performance-wise, the Sanyo AC is one of the best in the business. Costs wise, it is an excellent one. Thus, it qualifies as one of top budget inverter ACs in India in 2020.

5. Voltas 1.5-ton 5-star Inverter Split AC SAC_185V_ADS

Voltas is one of the foremost manufacturers of air conditioners in India. This brand has withstood stiff competition from the latest entrants. It proves the high quality of Voltas ACs. The Voltas 1.5-tom split AC comes with the following endearing features

  • Split AC with inverter compressor
  • 1.5-ton capacity to suit the needs of medium-sized rooms
  • 5-star energy rating
  • The copper condenser that requires less maintenance
  • Antibacterial dust filters
  • One-year warranty on the product and condenser
  • Five-year warranty on the compressor

The highlighting feature of this adjustable inverter AC is that it can run on different tonnages depending on the requirement.

It can function as a 1-ton AC as well as a 1.5-ton AC based on the number of people in the room. Thus, this AC can provide you with maximum comfort while saving your electricity bills at the same time.

The Voltas AC comes with a superior cooling capacity that can cool the room even if the temperature outdoors is as high as 52 degrees Centigrade. This appliance delivers a higher airflow because of its unique louvre design. It helps to cool the entire room with no hot spots in double-quick time.

The 4-speed fan function is a unique one as it provides superior comfort and convenience in all types of heat. The dehumidifier mode ensures to dry the room by removing the traces of moisture. Thus it helps to cool the room faster.

The CO2 reduction mode increases the ventilation levels and removes the organic compounds and other toxic gases. The best aspect of this AC is the noiseless operation when operating at low fan speeds.

This AC comes with a multi-stage filtration advantage to remove allergens, odour, and other contaminants from the air to give you a fresh and refreshing experience. The R32 refrigerant gas is an environmentally friendly gas that does not deplete the ozone layer.

The Voltas AC features an in-built stabiliser that helps the AC work comfortably in the input voltage range of 145 to 290V. The start-up voltage required for this AC is 100V, thereby proving that it does not need an external stabiliser.

  • The adjustable inverter that suits different room sizes
  • High-quality cooling performance
  • Humidifier feature
  • Multi-stage filtration
  • Installation charges are high.
  • Remote looks like a conventional type.

The latest features present on this AC make it an excellent addition to the room. As this AC delivers an excellent performance, it is one of the best ACs available in India in 2020.

6.  Samsung 1.5-ton 5-star Inverter Split AC – Alloy – AR18NV5HLTRNNA

Samsung is a popular choice in India when it comes to consumer appliances. The Samsung AC is an excellent model in its own right. This AC comes with some of the best features you can expect in an inverter AC.

  • Split Inverter AC with variable speed compressor
  • 1.5-ton capacity
  • Features like dust filter and self-cleaning
  • 5-star energy rating
  • Ten years warranty on the compressor with the condenser getting a 5-year warranty
  • Alloy condenser coil
  • R410A refrigerant gas

Samsung Inverter ACs come with a triple inverter removed for saving energy while ensuring faster cooling.

The advantage of the Samsung inverter AC is that the digital inverter maintains the desired temperature without having to switch on or off frequently. Thus, it uses less energy and helps you stay comfortable for extended periods.

The 2-step cooling mode present in this AC uses the Fast Cooling mode first before switching over to the Comfort Cool mode. Hence, you do not have to change the settings to maintain the desired temperature.

The Fast Cooling mode works by running the compressor at the maximum level with the fastest fan speed for 30 minutes. The Digital Inverter 8-pole helps it to quickly reach the maximum frequency when it starts.

The Automatic Temperature control mode selects the operating mode necessary to maintain the optimum temperature in the room. Thus, you enjoy a continuously comfortable experience without having to switch between different settings.

Samsung Inverter AC works on the Durafin Heat Exchanger technology that enables a smooth heat transfer because of the thicker design. Durafin enhances the heat exchanger’s performance while protecting the fins from corrosion.

The Triple Protection Plus protects the appliance from sudden voltage surges. The in-built voltage stabiliser cuts off the electrical input if it senses the voltage beyond the acceptable range. Thus, it protects the compressor from becoming overloaded.

Samsung ACs come with a smart installation feature that enables you to check if the installation is proper or not. One press of a button allows the IDU and the ODU to perform a self-check. In the case of an error, it will show the error code 99 on the digital display screen.

Samsung Ac features a Good Sleep function that ensures a comfortable ambience in the bedroom. This feature comes with a temperature control system and automatic moisture adjustment function to provide the highest levels of comfort and convenience. At the same time, it saves energy when compared to the normal cooling mode.

  • Superior cooling performance
  • One of the safest appliances because of the Triple Protection Plus feature
  • Alloy condenser coils make it comparatively affordable to the ACs with copper coils
  • The unit does not come with a power cord. You have to purchase it separately.

Samsung AC is a useful appliance that provides full value for the money you spend on it. It thus qualifies as one of the best inverter ACs in India under Rs 50,000.

7. Carrier 1.5-ton 5-star Inverter Split AC – CAI18EK5R39F0

Carrier is a world leader in the manufacturing of ACs today. These ACs come with some of the best features such as Flexi Cool Hybrid Jet Technology that can provide the maximum comfort even when the temperature outside exceeds 55 degrees Centigrade. This AC comes with the following features.

  • Split AC with inverter compressor
  • 1.5-ton capacity to suit the needs of the present-day Indian bedrooms
  • 5-star energy rating with an ISEER Value of 4.62
  • Copper condenser coil for efficient functioning
  • One-year manufacturer warranty with ten years on the compressor
  • Other features like dust filters and dehumidifier

The Flexi Cool Hybrid Jet technology is the highlight of this AC. It offers four operating modes, 50%, 75%, 100%, and the free-running mode. These modes adjust the AC’s energy consumption, accordingly, thereby leading to excellent savings on your electricity bills.

This Carrier AC is one of the most efficient appliances as it can cool the rooms comfortably even when the outdoor temperature is as high as 55 degrees Centigrade. The AC can operate of voltages as low as 195V.

The in-built stabiliser function ensures that the AC works comfortably in the voltage range of 150V to 280V even at temperatures exceeding 48 degrees Centigrade.

Carrier ACs come with a robust and durable design that not only delivers high-quality cooling but also makes the AC look aesthetically beautiful.

This AC comes with copper condenser coils that ensure efficient functioning. Copper is one of the best metals that allow perfect heat transfer while resisting corrosion at the same time.

  • The ability to deliver excellent performance under the most adverse of conditions
  • Works without the services of an external stabiliser
  • The dehumidifier and dust filters make it one of the most multi-purpose ACs in the market.
  • Provides excellent value for money
  • Does not have an automatic switch on/off mode
  • Not ideal for bigger rooms

Carrier is the ultimate name when it comes to AC manufacturing. This AC does qualify as one of the best inverter split ACs in India under Rs 45,000.

8. Blue Star 1.5-Ton 3-star Inverter Split AC – IC318MATU

  • Check Price at Amazon

Blue Star is one of the most famous AC manufacturers when it comes to producing ACs to suit Indian conditions. Some of the best features of this Blue Star 3-star AC are as follows.

  • Split AC with inverter compressor
  • 1.5-ton capacity
  • 3-star energy rating
  • Acoustic jacker on the compressor to reduce noise
  • One-year manufacturer warranty on the product with ten years on the compressor

The new 3-star MATU Inverter Split AC is one of the best performers when it comes to providing the best comforts and convenience. The compressor comes with a ten-year warranty, thereby ensuring that you have an incredibly durable product on hand.

The built-in sensor in the remote-control option provides the desired comfort for the user in all seasons. This AC is a smart one in the sense that it responds to the weather outside and adjusts the cooling to make it comfortable indoors.

The anti-corrosive Blue Fin protection prevents corrosive agents from wreaking havoc on the condenser and evaporator coils. Therefore, you get the maximum heat transfer with an increased cooling efficiency.

One of the highlights of this Blue Star AC is the self-cleaning feature that prevents the accumulation of any kind of dust, moulds, or moisture on the appliance. Thus, you have one of the most efficient split ACs delivering clean air inside the rooms.

The Blue Star AC compressor comes with an acoustic jacket for the compressor. This protection to the compressor has sound-proof qualities to ensure that the AC does not make any noise while functioning.

The Comfort Sleep feature can sense the variation in the indoor temperature and adjust the same automatically to provide the highest degree of comfort when sleeping.

  • Ideal for Indian conditions
  • Corrosion-resistant Blue Fin technology
  • Acoustic jacket to muzzle the sound
  • Self-cleaning feature
  • It is a 3-star AC, and hence not as efficient as the 5-star ACs discussed earlier.
  • Compared to its peers, the price can be an issue

The Blue Star AC could appear a bit on the expensive side, but it compensates for the same by delivering an excellent performance. This AC is one of the best inverter split ACs in India in 2020.

9. Sanyo 1.5-ton 3-Star Dual Inverter Wide Split AC – SI/SO – 15T3SCIA

Sanyo brings with it the best of Japanese technology. Therefore. It does not compromise on the quality aspect at all. This Sanyo AC comes with fascinating features.

  • Split Inverter AC with variable speed compressor
  • 1.5-ton capacity to suit rooms having living area between 110 and 150 square feet
  • 3-Star energy rating
  • Copper condenser coils to ensure low maintenance
  • R32 refrigerant
  • One-year warranty on the product
  • Five years warranty on the compressor

Sanyo brings in 68 years of experience to AC manufacturing, thus ensuring that you get a highly efficient product. The Dual Cool Inverter features two independent rotors in the compressor to provide energy-efficient and quick cooling.

This AC features a Glacier mode that enables you to enjoy the best cooling in the shortest time possible. This mode allows a higher fan speed of up to 35% more than the normal for delivering instant cooling.

The occupants of the bedroom get pure air to breathe because of the presence of air purifying filters in this AC. The anti-dust filters ensure to keep the dust out, and the PM2.5 filter removes pollen, suspended particles, and even bacteria.

The Auto Restart option is one of the energy-saving features as the unit starts functioning from where it left off at the time of a power cut.

This AC is one of the most user-friendly ACs in the market because of the Self-diagnosis feature. It enables easy troubleshooting by displaying the appropriate error codes in the temperature display area.

The copper condenser coils increase the overall efficiency of the AC by ensuring faster heat transfer. Copper is also resistant to corrosion.

The hydrophilic fins provide the best protection against salt, and rust, thereby enhancing the lifespan of the compressor.

The R32 refrigerant gas is one of the eco-friendliest refrigerants available today. Besides protecting the environment, this AC also helps to save on your power bills.

The Sleep Function is another power-saving option because the AC adjusts the temperature accordingly at night to provide comfort while saving power.

The backlit remote makes it easy for you to operate the appliance at night. The timer feature ensures that you do not have to get up at night to switch off the AC, thereby ensuring undisturbed sleep at night. The hidden display of temperature adds to the sleek and elegant design, thus adding to the attractiveness.

  • User-friendly operation
  • Copper condenser coils to reduce maintenance while increasing efficiency
  • Sleek design
  • A 3-star energy rating makes it inferior to its 5-star rated peers
  • The installation comes at a cost

The Sanyo ACs do not offer much scope for complaints.

10. LG 1.5-ton 3-star Inverter Split AC KS-Q18YNXA

This LG 1.5-ton AC comes in two variants, YNXA and KNXD series. Both these ACs are energy-efficient appliances with a 3-star rating. This model, Q18YNXA, comes with the following astounding features.

  • Split Ac with inverter compressor
  • 1.5-ton capacity to cater to rooms with area up to 150 square feet
  • 3-star energy rating
  • One-year warranty on the AC with 10 years on the compressor
  • Copper condenser coil
  • Double filtration system
  • R32 refrigerant

LG inverter ACs come with some of the best features to make it the favourite of homemakers around India. The dual rotary compressor not only offers faster cooling but also ensures to save more power. This AC comes with an incredible cooling score of 5.

It entails that the AC displays excellent performance even when the temperature outside exceeds 50 degrees Centigrade.

This LG AC is perfect for Indian conditions as it comes equipped with Ocean Black Protection for both the indoor and the outdoor unit. This AC features copper coils to increase the overall efficiency of the appliance.

Another exciting feature of the LG AC is the Active Energy Control functionality. It limits power consumption from 40% to 80% as compared to regular usage, thereby saving up to 57% energy.

Low Refrigerant Detection: This feature detects a shortage of refrigerant that can make the room seem uncomfortable.

HD Filter: This high-quality air filter ensures to eliminate pollutants like pollen, bacteria, and odour along with dust mites and animal dander.

Comfort Air: The beautifully designed louvres allow for uniform distribution of cold air throughout the room.

This LG AC comes equipped with a sub-divided Temperature Control Matrix that is the ideal setting for the monsoon season when the indoor temperature is in the range of 29 to 31 degrees.

This feature senses the ambient temperature and adjusts the settings to provide maximum comfort, thereby reducing power consumption.

  • Brand reputation
  • Exemplary cooling performance
  • High-quality features
  • User-friendly controls
  • Installation can become expensive.
  • 3-star rating, thereby not as efficient as the other LG model reviewed earlier

As this LG AC is a 3-star AC, the pricing is less though the features are comparable with that of a 5-star AC. It thus qualifies as one of the best split ACs in India under Rs 40,000.

11. Whirlpool 1.5-ton 3-star Inverter Split AC – Magicool Elite PRO

Whirlpool is a reputed consumer appliance manufacturer in India. Though a 3-star AC, this Whirlpool AC is high on performance.

  • Split AC with inverter compressor
  • 1.5-ton capacity
  • 3-star rating
  • R32 refrigerant
  • Intellisense Inverter to ensure optimum cooling
  • One-year warranty on the product with a maximum of 10 years on the compressor

Whirlpool ACs come with Turbo Cooling features to provide better saving and highly efficient performance at the same time. This AC can cool the room sufficiently even when the outdoor temperature is in the range of 55 degrees.

The Turbo Cooling feature uses MPFI technology where the fusion of smart circuit design and capillary design ensures instant comfort and quick cooling.

The MPFI (Multi-Port Fluid Injection) technology uses a unique 4×4 evaporator circuit design to enable rapid heat exchange, thereby resulting in excellent cooling capacity while saving power at the same time.

The 1.5-ton capacity ensures that it is capable of cooling a standard Indian bedroom measuring somewhere between 110 and 150 square feet in area.

The Intellisense feature uses advanced inverter technology that adapts to your cooling needs while reducing electricity usage. Whirlpool is famous for introducing the 6th sense Energy Saver Technology to adjust the cooling depending on the room temperature.

This AC comes with an HD filter to purify the air that circulates inside the room. The Sleep function comes with a timer that allows you to set a time for the air conditioner to adjust automatically based on the ambient room temperature.

The R32 refrigerant is not only an energy-saving one but also ensures lesser emission of greenhouse gases to qualify as an environmentally-friendly refrigerant.

This AC comes with an excellent self-diagnosis feature that can detect the error and display the related code. Thus, it becomes easier for the mechanic to service the AC.

  • High-quality performance
  • Purifies the air that circulates inside the room
  • Self-diagnosis feature to aid in the servicing of the AC
  • MPFI technology to ensure rapid heat exchange
  • Noise levels are comparatively high when the fan runs at full speed
  • Installation costs can increase the overall pricing of the AC
  • 3-star rating making it relatively less energy-efficient

Whirlpool ACs are gradually becoming popular with many people preferring to have them in their bedrooms. This AC has all the qualities to earn the reputation for being the best split inverter AC under Rs 30,000.

Introduction to Inverter ACs

The compressor is the heart of the AC. In a traditional AC, the compressor switches on and off at regular intervals.

You have temperature settings in any AC. When the AC cools the room up to the set temperature the compressor switches off. It remains so until the temperature in the rooms goes up again. On sensing the same, the compressor starts working again repeating the same procedure.

Coming back to the inverter ACs, the compressor does not switch off at all.

Naturally, you might ask as to how this situation can be better. You can compare the working of the inverter Air Conditioner to the accelerator of a car.

The moment you sense you are speeding too much, you take the foot off the pedal. Thus, you ensure that you provide less power to the vehicle thereby slowing it down automatically without applying the brakes.

Similarly, when you feel the need to speed up the car, you press your foot down again and provide the requisite power to fuel the engine. The inverter AC units work in a similar fashion.

Difference between an Inverter AC and a non-inverter AC?

This is a good question. You can see the differences unfold as you go deep down into the article.

The basic difference between the two is that the compressor in an inverter AC works continuously whereas it switches between on and off in a non-inverter AC.

The inverter AC units work at variable speeds whereas the non-inverter AC units do so at fixed speeds. This enables the inverter ACs to adjust their tonnage according to the size of the room. The normal AC units do not have this ability.

These are the basic differences. We shall go into the details of the individual differences at the appropriate time.

In order to understand the differences between the normal ACs and the inverter ACs, one should have a background into the working of these ACs. Let us look at the same in the following couple of paragraphs.

The working of the normal ACs

The Window AC units are literally out of fashion. Hence, we shall look at the split AC or the ductless ACs as they are called in many parts of the world. Of course, the technology in use in both these variants is similar in many ways.

Let us concentrate on the working of the split AC. It involves the use of principles of evaporation, compression, and condensation.

The components of the split AC are divided into two parts, one placed outdoors and the other indoors.

An insulated pipe connects both these separate units. The working of these ACs is elementary. It involves the circulation of a compressed gas refrigerant that cools the air inside the house.

Air conditioning units outside a building

This entails that the refrigerant has to be re-cooled and condensed at regular intervals. The hot air outdoors is the best medium to ensure this functionality. The system makes use of a fan to suck the air from outside and condense the refrigerant.

Let us look at the major parts of the split AC


The compressor is the heart and the soul of the AC. In a split AC, you find this component in the outdoor unit. The main function of the compressor is to ensure the circulation of the refrigerant between the condenser and the evaporator coils. It does so in a closed loop.

Condenser Coils

The coils are a network of tubes filled with the refrigerant (usually Freon). The condenser coils have the responsibility to eliminate the heat from the heated gas refrigerant and cool it into the liquid form again. The coils allow the absorbed heat to escape into the outside air. These condenser coils form a part of the outdoor unit.


The fans have the role of pulling the hot air from the condenser coil and disperse the heat. They are also situated in the outdoor unit.

Evaporator coils

These coils work in the opposite fashion to the condenser coils. These coils contain the refrigerant for removing the heat as well as the moisture from the air whereby the refrigerant evaporates into the gaseous form. You find these evaporator coils in the indoor unit.

Air filters

The job of the air filters is to trap the dust, pollen as well as other airborne particles and prevent them from entering into the air conditioning system. These filters play a great role in ensuring the quality of air inside the room.

Drainage system

naturally, you find this system outdoors. Water is an important by-product of the condensation process. You need to flush out this water from the system. There is an urgent need to keep this system in perfect working condition. Any clogging of the drain pipes can affect the functioning of your air conditioner.

Refrigeration cycle: 1) condensing coil, 2) expansion valve, 3) evaporator coil, 4) compressor

Now that you have seen the different parts of a split AC, you need to understand how it works as well. You can break down this system into four main parts.

1. The first step is the compression of the gas and converting it into a high-pressure hot liquid.

2. The condensation of this liquid is the second step in the process. The process takes place when the hot liquid flows through the condenser coils. The heat escapes outdoors and the liquid becomes cold. However, the liquid is still under high pressure.

3. The expansion valve has the role of converting the high-pressure liquid into a low-pressure liquid.

4. The final step involves the passing of this low-pressure liquid through the evaporator coils where you can see the absorption of the heat from the room. This heat converts the liquid into gas. Now, as the heat is absorbed, you get the cooling effect inside the room.

The entire process keeps on repeating.

In the regular AC, you find that the compressor works at full capacity and ensures that the room temperature reaches the desired level. On doing so, the thermostat senses the same and makes the compressor switch off. The fan takes over and enables the circulation of the cool air inside the room.

As the room temperature rises, the thermostat sends a signal to the compressor to start working again. This process continues until the time you switch off your AC.

The Working of Inverter AC

The basic process is the same as in the case of the regular ACs.

The major difference is that the compressor does not switch off in the inverter AC. The system ensures that it gives more power when the unit needs it and reduces the power when it does not.

How does the AC determine the amount of power it needs to deliver?

This depends on the temperature of the incoming air as well as the thermostat setting.


The system uses an inverter to control the speed of the compressor motor. This helps to regulate the temperature levels.

Comprising of a variable frequency drive and an adjustable electrical inverter, they are able to regulate the speed of the motors. The system works by converting the incoming alternating current into direct current. Using a modulation process, this system can produce the current of the desired frequency.

This system gauges the temperature of the incoming air and adjusts the speed of the motor accordingly. Hence, this accounts for the fluctuations in the load as well.

The inverter ACs are systems that work at varying speeds as compared to the regular ACs that perform at the peak levels at all times.

Advantages of Inverter technology?

The advantages of using the inverter technology are obvious. Let us look at them in brief.

1. The inverter AC units consume less power in comparison to the regular ACs.

2. The inverter AC units work at varying speeds and tonnage capacities. This is very much unlike the regular AC units that work at fixed speeds and tonnage.

3. They maintain the temperature level in the room according to the thermostat setting accurately.

4. In comparison to the regular AC units, the inverter units make less noise.

The following example should make things very clear.

You know that every AC has a maximum peak load. It can be a 1-ton AC or a 1.5-ton AC depending on the size of the room.

The problem with the normal 1.5-ton ACs is that they run at the peak power requirement as long as the compressor is functioning.

This is not the case with the inverter AC. It draws as much power it requires to keep the compressor motors running. Since this system works at varying speeds, the power consumption varies accordingly. Hence, you experience saving of power in the long run.

When you speak about the advantages of the inverter technology, you should have an idea about the drawbacks as well.

The biggest drawback is that inverter ACs can be more expensive than the regular ones.

However, it makes up for the fact by reducing your electricity consumption bills by more than 30%. Hence, you can recover the excess cost in a minimum of two years.

Inverter AC vs BEE 5-Star Normal AC

Speed / Tonnage

The normal AC units work at fixed speeds and tonnage levels whereas the inverter AC units have the ability to work at varying speeds and tonnage. This is one of the biggest distinguishing features.

Automatic adjustment

The inverter AC units have the ability to adjust according to the temperature of the room. The regular AC units lack this ability.

Power consumption

Statistics show that inverter AC units consume far less power than the normal units. In fact, a 3-star BEE inverter AC is 7% more efficient than a 5-star non-inverter AC.


An inverter AC can definitely cost more than a regular BEE 5-star AC. However, you can compensate by saving on your electricity consumption.

Power consumption: Inverter AC vs Non-Inverter AC

You have ACs of varying capacities and efficiency ratings. In the normal course, the 5-star ratings are considered the most energy-efficient systems.

Normally, people install AC units of at least 1.5-ton capacity. Hence, we shall compare the power consumption of a 5-star non-inverter AC with a 3-star inverter AC. We shall also look at the comparative 5-star inverter AC to understand the benefits that accrue to the consumer.

Annual Electricity Consumption (Units or for 1600 hrs) BEE Data

As per BEE statistics, a 5-star non-inverter AC of 1.5-ton capacity consumes 1130 units of power in 1600 hours.

The corresponding figure for a 3-star inverter AC is 1077 units in 1600 hours. As you go for higher efficiency inverter ACs, the power consumption reduces to 972 units and 815 units for a 4-star and 5-star inverter AC respectively.

This is ample proof that inverter ACs can help in saving considerable power.

How does an inverter AC save power?

The regular AC cools the room a little below the thermostat setting and switches off the compressor until the room becomes warm enough. On sensing the warmth, it starts the compressor again. This process of switching the compressor on and off consumes higher power.

The inverter AC units, on the other hand, works at double the capacity to cool the room faster and then slows down the compressor motor considerably to maintain the cooling throughout. As and when the temperature inside the room rises, it releases more power thereby controlling the use of electricity throughout.

We shall see a small example to prove this fact.

A 1.5-ton inverter AC will initially run at 150% of its speed to cool the room faster. On doing so, it reduces the speed to around 10% so as to maintain the requisite temperature. This varying speed and tonnage can result in the saving of power. The compressor does not switch on and off at regular intervals thereby saving power as well.

Star ratings for Inverter AC

Just as any other electrical or electronic appliance, you have star ratings for inverter Air Conditioners as well. The ratings depend on various factors such as power consumption, efficiency, etc.

The higher the star rating the higher will be the efficiency.

At the same time, the price of a 5-star inverter AC will definitely be higher than that of a 3-star inverter AC. Naturally, the power savings in the higher rated version will be more.

What is a dual inverter AC?


The dual inverter AC is an improvement on the normal inverter AC in the sense that it has dual rotary motors with wider rotational frequency.

You see an immediate surge in the efficiency levels with faster cooling and emission of lesser noise.

It works in a similar fashion to the normal inverter AC by regulating the speed of the compressor motors. However, the dual inverter AC performs the role with a higher degree of efficiency.

Hence, it ensures further savings in power bills whereby you recover the cost in double quick time.

In the normal course, ACs work well when the outside temperature is below 46 degrees Celsius.

The dual inverter ACs can function when the temperature levels rise above 46 degrees up to a maximum of 52 degrees.

Thus, you can see that the dual inverter AC can work in extreme conditions as well.

Air Conditioner Capacities

In general, A 0.75 Ton AC is suitable for Small bedrooms and a 1 Ton Split AC opts for Bedrooms and Small Conference rooms, office cabins.

1.5 Ton Air Conditioner is required for Master Bedrooms and 10 Seater Conference rooms. If you are looking to install an AC for your Living Room or Large Office Workspace, you have to opt for a 2 Ton AC.

Summer temperatures of your Place, Window Space at your Room should also be taken into consideration. Also, If you are living on the 2nd Floor or above, the room will be warmer due to the rising warm air. So, make sure you select the AC Tonnage according to the requirement.

Final words

You have seen the concept of the Inverter AC. Now, you are aware of the benefits of using the inverter technology as well.

However, it is of utmost importance to ensure that you maintain your AC systems well by cleaning the filters and ducts regularly. This enables you to save considerable power and increases the life expectancy of your inverter Air Conditioner.

Source: Wikipedia, Bijlibachao, Achrnews

I hope the list helps you pick the best Inverter AC according to your Budget. If you have any queries reading Inverter AC selection, post them in the comments section below, and I’ll answer them.


  1. I want to purchase split inverter AC 1.5 tonnes for area of around 180 sq feet. Which is the latest model and make. my budget is around Rs. 45000/-

  2. You missed the best inverter ac – Panasonic. We have been using it for 5 years without any hassle with effective and efficient performance.

  3. Hi
    This is with regards to a query for 3 star inverter AC. Today we have large no of models for split ac in Hitachi but not sure which one I should buy.
    Secondly need knowledge…do Hitachi provide copper coil and copper condenser both and in which model.

    Thirdly which gas no should be preferable like R32, R410, R22.

    PLS SUGGEST MODEL NOS OF 2019 for Hitachi split 3star inverter AC for 2019 month which I should consider while buying.

  4. I am planning to buy a 1.5 ton inverter split ac for my bedroom size 16 x 12 ft

    How is Panasonic AC rated?
    which model do you suggest?

  5. Thank for the nice post.

    I need an AC for a room of about 135 sq.ft., and a 1.2 ton AC seems ideal. You have not mentioned any 1.2 ton AC. Can you please suggest a 1.2 ton inverter 5 star AC with good efficiency.

    Thank you.

    • LG BSA18BEYD is a Dual Inverter AC that has dual rotary motors with wider rotational frequency. You will experience faster cooling, less noise, and high efficiency. The LG Dual Inverter ACs can also function at high-temperature levels up to 50 degrees. The ISEER Value of this AC is 4.20 and the AC offers stabilizer free operation (145 – 290V). LG ACs offer good value for money and LG has a wide range of service centers across India so there will be quick support when required.

  6. Hi
    I’m looking for a inverter AC but confused between 1 ton and 1.5.
    1.5 ton AC is over budget for me.
    My room size is 150sqfeet but the weather in pune is not so hot in summers and my one side wall gets dirct sunlight which has wide window with curtains.

    Please suggest which is suitable for my room 1 or 1.5

  7. Hi Nice write up, i m looking for a 1.5 ton ac home usage,
    1. is mitsubishi heavy duty is a good choice than mitsubishi electric
    2. is inverter the technology to choose for the future, the ac service person is telling me to pick a regular non-inverter model, as service costing is high for inverter ac

    Kindly advise
    Thank you

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