Best Air Conditioners (AC) In India to Buy – January 2021

In a Hurry? Our Top 2 Best ACs to Buy!

Daikin 1.5 Ton 5 Star Inverter Split AC

Daikin 1.5 Ton 5 Star Inverter Split AC

₹ 47,200
Buy Now on Amazon

Amazon.in Price as of 2021-01-27 at 15:15

Blue Star 1.5 Ton 5 Star Inverter Split AC

Blue Star 1.5 Ton 5 Star Inverter Split AC

₹ 43,900
Buy Now on Amazon

Amazon.in Price as of 2021-01-27 at 15:15


Is your home in an area where the weather temperature is between 73 to 113° F on most days or in summer? If a gust of cold air is found in this scorching heat, it looks very blissful.

For this, we could not always depend on natural air. But in the modern era, with the development of technology, science has discovered something that can meet our needs very well.

An AC is an example of this, which controls the temperature around us and makes us feel comfortable even during the summer days. So if you have made up your mind to buy an AC with a luxurious and ideal budget, then this review is ready to help you.

Here we have listed 10 Best AC in India 2021 with high energy ratings to make things easy for you, which will save your bills.


Which are the 10 Best Air Conditioners (AC) in India 2021?

1. Daikin 1.5 Ton 5 Star Inverter Split AC (FTKF50TV)

Daikin 1.5 Ton 5 Star Inverter Split AC

Amazon.in Price as of 2021-01-27 at 15:15

Daikin FTKF50TV Specifications
Type Split System
Capacity 1.5 Ton
Condenser Coil Copper
Compressor Type Inverter
Energy Efficiency Ratings (ISEER) 5 Star Energy Rating
Cooling Capacity 5280 Watts
Suitable Area 130 sq. ft
Noise Level 32 dBA
Annual Energy Consumption 767 Units

Daikin offers a wide range of air conditioners and other home appliances. It is an inverter air conditioner. The material used for its production is the best quality of polycarbonate plastic. Its inside and outside unit is a bit heavy. Apart from its layout, it delivers excellent performance for the air cooling unit.

Its radiant cooling system enhances comfort by evenly distributing air to every corner of the room. Its newly swing compressor reduces friction and vibration. It also prevents the leakage of refrigerant gas during compression, thereby achieving quiet and efficient operation. Its condensers are equipped with a 100% copper coil that serves as the backbone for a robust air conditioning system.

This machine is equipped with a stabilizer, which removes its dependency from the external stabilizer. This stabilizer is different from free operation because it also controls the voltage. R32 (Green Refrigerant) has a zero ozone depletion potential (ODP) of 472 and a modified global warming potential (GWP) compared to R32 (modified GWP of 2,427). In addition, the R32 is a single component refrigerant, which makes it easy to recycle.

Its Eco mode enables efficient operation by limiting the maximum power consumption. This mode will help you in reducing your electricity bill. Its timer function gives the authority to control the temperature at bedtime. You can adjust the room temperature according to your comfort.

The Good

  • Super Layout Quality.
  • ODU Heat Exchange Technology.
  • Copper Coil of The Condenser.

The Bad

  • Form Factor Is Massive.

What’s the bottom line?

By controlling and adjusting this Daikin AC’s temperature, you can relax with your family in a cool environment, without worrying about the electricity bill.

2. Blue Star 1.5 Ton 5 Star Inverter Split AC (IC518DBTU)

Blue Star 1.5 Ton 5 Star Inverter Split AC

Amazon.in Price as of 2021-01-27 at 15:15

Blue Star IC518DBTU Specifications
Type Split System
Capacity 1.5 Ton
Condenser Coil Copper
Compressor Type Inverter
Energy Efficiency Ratings (ISEER) 5 Star Energy Rating
Cooling Capacity 5010 Watts
Suitable Area 130 sq. ft
Noise Level 41 dBA
Annual Energy Consumption 856.63 Units

Equipped with the latest Inverter technology and amazing features, this 1.5 Ton Split AC is specially designed to deliver powerful cooling during extreme summers with minimal derivative.

Its unique fuzzy logic, and ultra-wide frequency microprocessor-based controller, intelligently changes the operating frequency and prevents indoor room temperature fluctuations to ensure a comfortable cooling experience. Its precise control is +/- 0.5-degree celsius.

Unlike conventional motors, it operates on an electronic commutation system (brushless DC motor), that experiences low operative noise even at high rotational speeds. It is designed with 7 filters to reduce air pollution and ensure maximum comfort.

The Good

  • Precision Cooling Technology.
  • Brushless Motor.
  • 100% Copper.
  • Climate Control.
  • Dual User Setting Preference.
  • Powerful Mode.

The Bad

  • No Cons Found.

What’s the bottom line?

This Blue Star Split AC adds a touch of luxury to your surroundings and provides the fastest cooling with maximum energy savings.

3. Carrier 1.5 Ton 5 Star Inverter Split AC (CAI18EK5R30F0)

Carrier 1.5 Ton 5 Star Inverter Split AC

Amazon.in Price as of 2021-01-27 at 15:15

Carrier CAI18EK5R30F0 Specifications
Type Split System
Capacity 1.5 Ton
Condenser Coil Copper
Compressor Type Inverter
Energy Efficiency Ratings (ISEER) 5 Star Energy Rating
Cooling Capacity 5275 Watts
Suitable Area 130 sq. ft
Noise Level 38 dBA
Annual Energy Consumption 888.75 Units

Carrier’s new Flexicool technology allows you to control your AC with the touch of a button. It offers you four operating modes – free running, 50%, 75% and 100%, which allows you to adjust the AC’s power consumption to your cooling requirement / weather conditions.

It works seamlessly even at high ambient temperatures of 55° C. This outdoor unit comes with a hybridjet that has an innovative design that helps reduce temperatures more efficiently.

It is equipped with an AC PM2.5 filter that filters PM2.5 and other microscopic particulate pollutants from the air inside your home to keep the air fresh and healthy. For ease of operating the remote during the night, it comes with a backlit remote.

This AC works efficiently between 150V-280V even at 48° C without a stabilizer. When its Follow Me feature is activated, the remote control’s inbuilt room sensor is activated, allowing the AC to adjust the ambient temperature around the remote control.

The Good

  • Superb Performance.
  • Flexicool Technology.
  • Hybridjet Outdoor Unit.
  • Backlit Remote.
  • Auto Cleanser.
  • 100% Copper Coil Condenser.

The Bad

  • No Free Installation.

What’s the bottom line?

Get high energy saving with this Carrier AC’s 5-Star BEE rating and an exceptional ISEER rating. Unlike ordinary AC, it also provides powerful cooling at 195V at 55°C.

4. Hitachi 1.5 Ton 5 Star Inverter Split AC (RSOG518HDEA)

Hitachi 1.5 Ton 5 Star Inverter Split AC

Amazon.in Price as of 2021-01-27 at 15:15

Hitachi RSOG518HDEA Specifications
Type Split System
Capacity 1.5 Ton
Condenser Coil Copper
Compressor Type Inverter
Energy Efficiency Ratings (ISEER) 5 Star Energy Rating
Cooling Capacity 5275 Watts
Suitable Area 150-180 sq. ft
Noise Level 34 dBA
Annual Energy Consumption 897.84 Units

The perfect way to beat the heat on hot summer days is the Hitachi 5 Star Split Inverter Air Conditioner which comes with an eco-friendly refrigerant. Its tropical inverter compressor provides efficient cooling by consuming minimal power.

The 100 percent copper condenser included as well as stabilizer-free operation make it more durable. The AC has a large flow deflector, wave blade design, and soft dry that provides complete cooling.

Its unique warning mechanism reminds the filter to be cleaned at regular intervals, which ensures faster cooling time. It is specially designed with an advanced microcontroller that checks the indoor and outdoor status and varies the compressor’s speed separately.

Its advanced microcontroller and intelligent Penta sensor technology provide perfect cooling even in extreme heat conditions. Maximum cooling capacity at 43° C is measured at the IDU position: 32° C DB / 23° C WB and ODU position: 43° C.

The Good

  • Inner Grooved Copper.
  • Eco-Friendly Refrigerant.
  • Tropical Inverter Technology.
  • 100% Copper.
  • On/Off Timer.

The Bad

  • Lack of PM2.5 Filter.

What’s the bottom line?

This Hitachi AC sets your home apart from the outside world with around 150-180 Sq.Ft room size and 1.5TR cooling capacity

5. Daikin 1.5 Ton 4 Star Inverter Split AC (FTKP50TV)

Daikin 1.5 Ton 4 Star Inverter Split AC

Amazon.in Price as of 2021-01-27 at 15:15

Daikin FTKP50TV Specifications
Type Split System
Capacity 1.5 Ton
Condenser Coil Copper
Compressor Type Inverter
Energy Efficiency Ratings (ISEER) 4 Star Energy Rating
Cooling Capacity 5000 Watts
Suitable Area 130 sq. ft
Noise Level 35 dBA
Annual Energy Consumption 928 Units

Daikin offers prime quality and a strong build design. With the NeoSwing inverter compressor, it reduces the rate of friction and vibration while working. This provides smooth rotation and prevents leakage of coolant gas during compression. The advantage of this method is the overall speed of the parts is quiet and efficient.

It takes power using an Eco mode level in the event of a degradation. In this way, power consumption is reduced. This is useful when both an air conditioner and other electrical appliances run on the same electrical circuit. The manufacturers introduced it to limit electricity expenditure.

The interesting feature about this AC is that it has a stabilizer inside and does not require an additional external stabilizer. This helps maintain the voltage level, and the work is separated from a stabilizer-free operation.

Daikin’s Coanda Airflow Technology produces the Coanda Effect for more effective air circulation and efficient temperature distribution. Radiant cooling performance method ensures that cool air is reached in every corner. Whenever the machine is not working, the self-diagnosis detects the error and shows the error code on the remote control screen.

Whenever you start the air conditioner, its smell-proof operation does not give any foul smell in the environment. This helps eliminate unwanted moisture present in an AC. Daikin prevents the development of moulds in the indoor section, and it uses polystyrene material that enhances the IDU look of the room. Even after several years of installation, this element keeps the IDU’s colour the same as the new one.

These air conditioners’ outdoor unit is designed with special extra care to prevent an unfortunate fire accident. The insulation kit is typically exposed to sunlight and outdoor weather conditions. Daikin XLPE insulation kits are specially UV treated to ensure a longer lifespan than standard insulation kits.

The Good

  • PM 2.5 filter.
  • Copper condenser coil.
  • In-built stabilizer.
  • Good Sleep Off Timer.
  • 1.5 Ton cooling capacity.

The Bad

  • There Are No Cons.

What’s the bottom line?

This Daikin 4 Star Air Conditioner has a quiet operation. Its good timer option gives you the right to control the temperature of your air conditioner at bedtime.

6. LG 1.5 Ton 3 Star Dual Inverter Split AC (LG LS-Q18JNXA)

LG 1.5 Ton 3 Star Inverter Split AC

Amazon.in Price as of 2021-01-27 at 15:15

LG LS-Q18JNXA Specifications
Type Split System
Capacity 1.5 Ton
Condenser Coil Copper
Compressor Type Inverter
Energy Efficiency Ratings (ISEER) 3 Star Energy Rating
Cooling Capacity 5000 Watts
Suitable Area 130 sq. ft
Noise Level 26 dBA
Annual Energy Consumption 1050.84 Units

The LG LS-Q18JNXA DUAL Inverter Compressor with Varied Speed Dual Rotary Motor has a wider rotational frequency that saves more power and a higher speed cooling range than conventional compressors.

Its Ocean Black Fins provide unbeatable protection against humidity, dust, sand, smoke and chemical present in the atmosphere. This helps to achieve an extended lifespan for air conditioners and ensures better performance than conventional fins.

The special ocean black protection applied to both indoor and outdoor unit provides exceptional durability by preventing the effects of sand, salt, industrial fumes and pollutants. The 10-year warranty on the compressor assures the long efficient life of the air conditioner.

It comes with a 2Way air swing function, which blows cool air in multiple directions to completely cool the room. It uses the latest R32 refrigerant gas, which is eco friendly. It has stabilizer free operation that protects the AC from 120V to 290V range.

Its HD filter removes harmful substances from the air, which are less than 10 microns, hence beneficial for health. The Easy Clean filter is designed for easy handling and quick cleaning.

The Good

  • DUAL Inverter.
  • 4-in-1 Convertible Cooling.
  • Ocean Black Fin.
  • Smart Diagnosis Method.
  • Super Silent Operation.
  • Himalaya Cool Technology.

The Bad

  • There Is No Option For Horizontal Swing.

What’s the bottom line?

This LG Inverter Split AC comes with Varied Speed Dual Rotary Motor, which saves more power with a higher speed cooling range than conventional compressors. With just the touch of a button, you will feel cool like the Himalayas.

7. Carrier 1.5 Ton 3 Star Inverter Split AC (CAI18EK3R30F0)

Carrier 1.5 Ton 3 Star Inverter Split AC

Amazon.in Price as of 2021-01-27 at 15:15

Carrier CAI18EK3R30F0 Specifications
Type Split System
Capacity 1.5 Ton
Condenser Coil Copper
Compressor Type Inverter
Energy Efficiency Ratings (ISEER) 3 Star Energy Rating
Cooling Capacity 3150 Watts
Suitable Area 111-150 sq. ft
Noise Level 38 dBA
Annual Energy Consumption 1058.16 Units

This career room AC is a great option if you are worried about too much heat. It keeps cool even when the outside temperature is equal to 52° C. It is equipped with AC PM2.5 filter which gives you cool fresh air. It also comes with a hidden display feature, that switches the LED display with a click on the remote.

It helps to provide pure air by filtering PM2.5 particles and other pollutants. It offers stabilizer free operations even at 48V.C between 150V-280V it works efficiently without stabilizer.

Its Sleep Function ensures a comfortable cooling experience by increasing the temperature by 1 degree. C per hour for the first two hours, then keep it stable for the next five hours and finally turning the AC off. It has also added the features of My Mode, Follow Me and Auto Cleaner, that gives you complete transfer of temperature in different conditions.

Apart from all this, the Auto Mode feature has also been added to the AC so that it will automatically select the speed between the fan speed, operation mode temperature and room temperature. It uses refrigerant R32, that is eco friendly.

The Good

  • Superb Performance.
  • Eco Friendly.
  • In-Built Stabilizer.
  • Energy Efficient.
  • Copper Condenser.

The Bad

  • No Free Installation.

What’s the bottom line?

This Carrier Inverter Split Air Conditioner helps you maintain the room’s required temperature and provides top-class cooling even in 52-degree temperatures.

8. Blue Star 1.5 Ton 3 Star Inverter Split AC (IC318QATU)

Blue Star 1.5 Ton 3 Star Inverter Split AC

Amazon.in Price as of 2021-01-27 at 15:15

Blue Star IC318QATU Specifications
Type Split System
Capacity 1.5 Ton
Condenser Coil Copper
Compressor Type Inverter
Energy Efficiency Ratings (ISEER) 3 Star Energy Rating
Cooling Capacity 5020 Watts
Suitable Area 150 sq. ft
Noise Level 35 dBA
Annual Energy Consumption 1079.25 Units

Best in design and cooling performance, this 3 Star Rating Inverter Split Air Conditioner provides pleasant cooling encounters. Its unique fuzzy logic and ultra-wide frequency microprocessor-based controller ensures precise control (+/- 0.5 ° Celsius) by preventing indoor temperature fluctuations to ensure a comfortable cooling experience.

It has added Turbo Cool System that ensures faster and more effective cooling in a few minutes and provides comfortable sleep in spite of extreme heat conditions.

This 2-Way Auto Swing is designed with a motorized horizontal as well as vertical swing utility that allows you to enjoy uniform cooling throughout the room through Omni-directional wind blowing.

Its self-clean technology prevents the accumulation of any type of moisture, mold or dust within the indoor unit. Each time you turn off your AC, the device will run for a few extra minutes to ensure that the coil in the indoor unit remains completely dry and clean.

The Good

  • Turbo Cool.
  • Hidden Display.
  • Comfort Sleep.
  • iFeel Technology.
  • Anti-Corrosive Gold Fin.
  • Precision Cooling Technology.

The Bad

  • Low Energy Rating.

What’s the bottom line?

This Blue Star Air Conditioner offers a budget-friendly price tag with high-quality options. It will definitely give you a comfortable experience.

9. Samsung 1.5 Ton 3 Star Inverter Split AC (AR18TY3QBBR)

Samsung 1.5 Ton 3 Star Inverter Split AC

Amazon.in Price as of 2021-01-27 at 18:25

Samsung AR18TY3QBBR Specifications
Type Split System
Capacity 1.5 Ton
Condenser Coil Copper
Compressor Type Inverter
Energy Efficiency Ratings (ISEER) 3 Star Energy Rating
Cooling Capacity 4982 Watts
Suitable Area 111-150 sq. ft
Noise Level 31 dBA
Annual Energy Consumption 3.5 kWh

The Samsung AR18TY3QBBR inverter split air conditioner is a great saving deal with a 10 yr compressor warranty and a 5 yr condenser warranty. This AC comes with extremely useful features such as convertible feature, smart installation, digital. Its display and stabilizer free operation will give your room a refreshing look.

The HD filter effectively catches dust, airborne contaminants and allergens, such as pollen and mold spores. The most important unit in AC is the condenser. The ideal condenser should be able to exchange heat so that precise cooling can be provided. Samsung AC with copper condenser does this.

These copper condensers have superior heat exchange capability and are highly durable. Copper condensers have wings made of anti-corrosion material, which last longer than rust-resistant materials. It is ideal for immediate relief from outside heat. The fast cooling technique operates at the fastest fan speed, at the slowest speed.

The Good

  • HD Filter.
  • Energy Efficient.
  • Fast Cool Mode.
  • Automatic Temp Control.

The Bad

  • No Cons Stand Out.

What’s the bottom line?

This Samsung 1.5 Ton 3 Star AC comes with extremely useful features like Converter Mode, Smart Installation, Digital.

10. Voltas 1.5 Ton 3 Star Split AC (183EZA)

Voltas 1.5 Ton 3 Star Split AC

Amazon.in Price as of 2021-01-27 at 18:25

Voltas 183EZA Specifications
Type Split System
Capacity 1.5 Ton
Condenser Coil Copper
Compressor Type High EER Rotary
Energy Efficiency Ratings (ISEER) 3 Star Energy Rating
Cooling Capacity 5200 Watts
Suitable Area 111-150 sq. ft
Noise Level 45 dBA
Annual Energy Consumption 1128.65 Units

Voltas is a well-known brand that meets customer requirements when the point comes to cooling efficiency. It uses 100% copper tubes of the condenser, which are quite durable and last for a more extended period. The indoor unit has a High Ambient Cooling System that cools the air with a quick response.

1.5 tons of cooling capacity is sufficient for 150–170 sq feet of space. The unit operates on High EER Rotary technology and enables the temperature to be stable. The Voltas Air Conditioner delivers a stable cooling output with constant savings. This helps in using optimum level of power and maintains ideal room temp. It uses advanced air purification technology that eliminates harmful odours and gives fresh air.

With a package of four-stage filtration, it removes all harmful particles from the surroundings. The active dehumidifier senses the humidity levels inside and dries the atmosphere. Abnormalities and failures are checked by the AC and automatically reset. It also has the facility to lock settings, lock your current settings using the lock button. To unlock, press the lock button again.

The Good

  • High Ambient Cooling.
  • 4 Stage Filtration Advantage.
  • 100% Copper Condenser Coil.
  • R-32 Refrigerant Type.

The Bad

  • Compressor Sometimes Makes Noise.

What’s the bottom line?

This Voltas 1.5 Ton Split AC is the perfect choice for a medium-sized room and circulates cool air quickly and efficiently. Manufactured with the durable copper condenser, it is sure to last for many years.


Summary List of Top 10 Best Air Conditioners (AC) in India

Air ConditionerCapacityStar Ratings
Daikin FTKF50TV 1.5 Ton5 Star
Blue Star IC518DBTU 1.5 Ton5 Star
Carrier CAI18EK5R30F0 1.5 Ton5 Star
Hitachi RSOG518HDEA 1.5 Ton5 Star
Daikin FTKP50TV 1.5 Ton4 Star
LG LS-Q18JNXA 1.5 Ton3 Star
Carrier CAI18EK3R30F0 1.5 Ton3 Star
Blue Star IC318QATU 1.5 Ton3 Star
Samsung AR18TY3QBBR 1.5 Ton3 Star
Voltas 1.5 Ton3 Star

How To Choose the Best AC In India 2021?

All of us wish that the expenditure for anything done by him lasts for a long time. You will always want an air conditioner that lasts longer.

For most people, choosing the best air conditioner for their home or office can be tedious. To get an ideal cooling appliance, you should know the features and functions very well because only on this basis will you make a correct decision.

Below we have shown some functions that you should look for when buying an air conditioner.

Mode

All air conditioners have their different modes with which you can control the temperature. If we talk about some common or standard modes that almost all air conditioner manufacturers provide, then the main ones are Cool, Fan, Dry, Heat, Auto, Eco and Turbo Mode.

Power Cool / Chill Mode: The quick cool or power chill function works by starting the air conditioner at the temperature level of 16-18°C. Since it consumes more electricity by powering up the aircon unit at this temperature level, the machine also works overtime to quickly cool a room in no time.

Dry Mode: Air Conditioners remove excess humidity with dry mode. In monsoon days, this feature is very helpful. The compressor works for short bursts and fan runs with constant low speed.

Power Save Mode: In Power saver method, the fan gets switched off for a few minutes, and thus the compressor does not start till the fan switches on again to notice that the temperature has increased. This increases the time between compressor cycles, thereby making it run less and thus saving electricity.

Sleep Mode: The ‘Sleep Function’ on your air conditioner will automatically regulate the air around you throughout the night and increase the temperature by 0.5 to 1 degree per hour, up to a maximum of +3 degrees.

Cooling Capacity

Cooling capacity is the ability of a cooling system to dissipate heat. If you compare an AC to a car, the cooling capacity is the same as the unit’s horsepower. The cooling capacity is measured in British thermal units (BTUs) or tonnes. A ton here is equal to 12,000 Btu. One-on-one 288,000 / 24 = 12,000 BTU is needed to remove heat from your room for one hour. For a 2-ton model, this doubles to 24000 BTU an hour.

Compressor

We can understand the compressor as the engine of the air conditioner because it plays an important role. The compressor is placed within the condenser unit, and refrigerant cools the component that initiates the chain reaction. It should be noted that heat moves towards colder regions. When the room temperature air passes through the evaporation unit, the heat from the air is dissipated and it passes with refrigerant under pressure.

Inverter or Non-Inverter

The main difference between an inverter and non-inverter air conditioner is that an inverter ac can regulate its compressor motor’s speed. In comparison, non-inverter motors only run at full speed or stop. The motor runs at full speed but turns off once normal temperature drops to the desired level.

Refrigerants

The coolant is an original part of the Air Conditioning system. It is responsible for absorbing heat from inside and sending it outside. The process of Liquefaction happens with the Compressor and losses the heat in the Condenser coils. Afterwards, it releases to the evaporator coil by the expansion valve.

The above process happens 100 times in an hour. So, the nature of gas and its ability to exchange the heat both are important. There are different Refrigerant uses in distinct models.

Coil Material

In an Air conditioner, coils are used to convert gas refrigerant to liquid refrigerant and vice versa, that is used to cool the room temperature further. However, copper coil or aluminium coil does the same job, but there is a certain difference in their heat transmission capability, durability, and corrosion resistance.

Copper provides not only better heat trade-off but more resistant to corrosion. Aluminium can’t defend against rust that creates the fatigue and wear at the site.

Types of Air Conditioner

This factor depends on your requirement whether you need a Window AC or a Split AC.

Split ACs are expensive than the Window ACs but arrives with a great cooling process. The Split AC’s air suction and blower area are smaller in size compared to a Window AC.

Star Ratings

Don’t get confused yourself in the tricks of a salesman. You should always check the BEE rating of the product. The essential number to look at is annual units used. It is best to pay high Star ratings for the current model. EER, SEER or Star Rating is a sign of the device’s efficiency of energy but can’t declare the absolute terms.


Frequently Asked Questions

1. What is the role of Blue Fin in AC?

Corrosion is the biggest threat to both Window Air Conditioners and Split Air Conditioners. Blue Fin is the anti-corrosive coating that prevents the rusting up to certain level. This prevention leads to the durable nature of the product.

2. What is Mosquito Away Technology?

You can take advantage of this feature in LG’s air conditioner. This technique means, it emits ultrasound waves to keep mosquitoes away. This range of sound cannot be heard for humans but is harmful to mosquitoes.

3. How long an Air Conditioner Last?

Generally, the AC lasts for approx 10-20 years. After passing some duration, efficiency or performance begins to decreases. You need to repair or replace it when the ability starts to drop.

4. How many times should need the service for the AC?

It depends on the level of usage. You get the service after 3-4 months if you use the unit for a minimum of 6 to 8 hours. If someone doesn’t have an idea about usage, then get the serviced twice in a year.