Air Conditioners

Which are the Top 9 Best AC Under 40000 in India (2021)? Expert Speaks

Last Updated on 2 August, 2021 by Sourav Roy

If you are looking for the best ac under 40000, Bravo! You are in for hi-end features, top-notch models and big brands.

Best AC under 40000

Table of Contents

Today, no household is without an air conditioner. The weather in India and the comfort of the appliance has totally spoilt us. It’s not even a luxury anymore. It is purely a necessity.

The best part is that your budget is fine enough to get you an inverter air conditioner with all extravagant features. However, deciding on one of the 9 listed air conditioners can be intimidating. We are not here to tell you who’s better than who.

The process goes as follows. Every brand has something exciting to offer. You must know what you are looking for and what entices you. Once you are through with that, the buying guide will further lead you. Well, we understand the budget is opulent. Therefore, every air conditioner has been picked by the experts to ensure no unpleasant surprises.


1. LG 1.5 Ton 4 Star Inverter Split AC

We’ll kick off our discussion by looking at one of the best products from the LG brand. This AC from LG delivers optimal performance, better cooling and cost savings. Even better, the quality is outstanding and a good value for money.

LG 1.5 Ton 4 Star Inverter Split AC


  • Features a dual inverter compressor that increases power efficiency.
  • Energy efficiency with 4-star rating and hence consumes less power.
  • It has a copper coil compressor which is a guarantee of quality and reliability.
  • Provides 5 in 1 cooling for increased versatility.
  • Anti-virus HD filter keeps the air healthy.
  • It has a climate-friendly refrigerant.

The Inverter Split AC is a 1.5-ton capacity and an excellent option for a medium to large-sized room. The package comes with an outdoor unit, indoor unit, connecting pipe, and remote control.

This model also features a dual inverter compressor with variable speed. Therefore it offers better cooling by automatically adjusting the power demands based on the temperature. The overall benefit is that it’ll save electricity consumption by up to 50%, which translates to more money in your wallet.

Besides, the compressor has a ten-year warranty, and this gives you confidence that the appliance has a guarantee of long-lasting service. Accordingly, this model is relatively quiet, and you’ll enjoy the peace that comes with having it at your home.

The high temperature during summer can increase humidity which can cause the coil to corrode. It’s even worse in coastal regions that experience high humidity. Thankfully, the compressor of this model comprises a black-protection-coated copper coil for durability. The copper wires won’t rust under any condition and can cool the room up to a temperature range of 50 degrees.

Moving on, this model is also very energy efficient, with a 4-star rating. Thus, it has an annual power consumption of 920.82 units and an ISEER value of 4.2. As you can see, this translates to lower power bills and massive savings. Many air conditioners at this price have 3-star ratings, so this rating certainly makes this model one of the best AC under 40000.

Another benefit of this AC is 5-in-1 cooling. It enables you to regulate the capacity of your AC, depending on the cooling needs. Thus, it leads to superior savings in terms of energy consumption and power bills.

The HD Filter is a versatile feature that removes dust, bacteria and allergens. It also has anti-virus protection for air purification. Therefore, this eliminates harmful pathogens and provides the surrounding with cool air. If you care about protecting the environment from toxins and harmful elements, you’ll be glad to note that refrigerant gas is environmentally friendly. Therefore, it will not deplete the ozone layer for long-term sustainability.

Lastly, the AC has a compact design and will not clutter your wall or ceiling.


  • It offers superior cooling to homes and offices.
  • It saves on energy and power bills.
  • The HD filter provides clean air.
  • Compact design.
  • The self-regulatory feature saves on energy and power bill.
  • High quality and durable.
  • The LED screen is easy to operate.
  • Eco-Friendly.
  • Installation is not easy and requires the services of a professional.


2. Voltas 1.5 Ton 5 Star Inverter Split AC

If you’re looking for a superior model with excellent cooling qualities, you can consider the Voltas 1.5 ton Inverter Split AC. Though it’s similar to other models in our review list, it has tons of unique features which make it one of the best air conditioners under 40000.

Voltas 1.5 Ton 5 Star Inverter Split AC


  • Has variable inverter compressor for regulating energy use depending on the temperature.
  • 1.5 ton capacity for medium-sized rooms of up to 150sq ft.
  • 5 star Energy rating ensures maximum power savings.
  • A 5-year warranty on the compressor saves you a lot of money.
  • It has an anti-bacterial and dust filter for clean air.
  • Has an R32 refrigerant gas for environmental protection.

For starters, this AC comes equipped with an inverter compressor which enables optimum cooling at high temperatures of up to 52 degrees centigrade. In addition, it has a tonnage of 1.5, which makes it a good choice for homes and businesses.

This model is reliably durable with low maintenance; therefore, you don’t have to worry about constant repairs or replacements. Moreover, it features Turbo cooling, which can deliver cool air in the entire house while eliminating the possibility of hotspots.

Another reason we choose this AC is that it has four-speed settings. Thus, these let you control the appliance depending on your comfort needs. One other key feature of this AC is the super-dry mode that dehumidifies your room at an incredible speed. Indeed it can run at a higher speed even when the fan is relatively slow.

Your safety and that of your family come first. There’s no need to worry about the level of CO2 emitted by this model since it’s relatively low. Besides, it has a filter that eliminates organic elements and toxic gases in the air. Plus, there’s the advantage of a multi-stage filtration process that gets rid of allergens, dust, odours, bacteria, and more.

Most consumers worry about noise from an air conditioning unit and hence switch off the appliance during bedtime. However, unlike the regular ACs that can disturb your peace at home, this model promises a super silent operation. Therefore you can have a comfortable night sleep free of noise.

The stabilizer-free operation allows the AC to work at a voltage range of 100 to 290V. And so, your AC will still regulate the temperature even when there are power fluctuations.

To conclude, this unit uses an R32 refrigerant for the cooling process. It’s useful in protecting against the greenhouse gas effect that leads to ozone layer depletion.

  • It provides a silent operation at home.
  • It uses an eco-friendly refrigerant.
  • Remains stable even when there are power fluctuations.
  • The filtration system ensures there’s clean air.
  • Dehumidifies the room fast without increasing the fan speed.
  • Ambient cooling of the room.
  • Expensive to install.


3. Daikin 1.5 Ton 4 Star Inverter Split AC

The Daikin AC is very popular in India for various reasons we shall highlight in our review. It’s a 1.5-ton capacity and a 4-star rating on energy use. If you’re looking for optimum cooling during summer, this split AC is a good bet.

Daikin 1.5 Ton 4 Star Inverter Split AC


  • Variable speed compressor controls electricity consumption depending on the temperature load.
  • 4-star energy efficiency rating.
  • 10-year warranty on the inverter compressor.
  • Uses copper condenser coil for superior service.
  • Has R32 refrigerant that protects the environment.

First of all, the inverter compressor is an innovative feature of this model. It offers a smooth gliding which ensures a silent operation. Further, it prevents the refrigerant gas from leaking boosts efficiency.

This AC is highly efficient in cooling the room as it ensures there’s even distribution of cool air in all corners. Further, it’s easy to use with a simple yet nice looking remote.

Like most models in our review, the Daikin has a copper condenser which ensures durability and reliability. The power consumption is low and has a 4-star energy efficiency rating and a 4.17 ISEER value. We also need to mention the stabilizer-free operation of this split AC, which is a money-saver. It eliminates the dependency of an external stabilizer to protect against voltage fluctuations.

Another incredible feature is the sleep-off timer which allows you to set the temperature while you’re asleep. You’ll appreciate the flexibility and comfort of this appliance. There’s also the smell-proof operation that gets rid of awful odours and prevents the formation of moulds.

An insulation kit accompanies this package, and it’s useful in protecting against exposure to harmful Ultra Violet Lights. Lastly, the IDU will always look clean due to the attractive colour. Therefore, it will enhance your room décor owing to the highly durable polystyrene material.

  • It features a compact and robust frame that will last many years.
  • The energy consumption is low.
  • It has a copper condenser which has low maintenance cost and is durable.
  • The coolant agent is climate-friendly.
  • It offers a stabilizer-free operation to ensure cooling even when power is low.
  • Many users complain about the expensive installation process.


4. Panasonic 1.5 Ton 5 Star Wi-Fi Twin Cool Inverter Split AC

The Panasonic split AC is a highly-advanced appliance that features Wi-Fi settings for reliable cooling. It’s a 1.5-ton capacity and a 5-star energy efficiency rating.

Panasonic 1.5 Ton 5 Star Wi-Fi Twin Cool Inverter Split AC


  • Uses Wi-Fi with seamless integration to Google assistant and Alexa for voice control.
  • It has a 1.5-ton capacity which can support a medium-sized room of up to 180 square feet.
  • It has a 5-star energy efficient rating.
  • 10-year warranty on the compressor.
  • Compact design for both indoor and outdoor units saves a lot of space.

The first thing that makes the Panasonic split AC unique is the digital setup which ensures comfortable and convenient cooling. You can connect it with the Al-enabled Miraie APP on your Android or iOS device for a personalized experience.

With one-touch technology, you can select different temperature settings to customize your cooling needs. The feature is highly intuitive, and you can also operate it from Google Assistant and Amazon Alexa. The support for both makes it an exceptionally smart piece of technology and certainly something that can be considered one of the best AC under 40000.

Other than that, several modes help you customize your user experience. For instance, the powerful-mode that cools the room quickly. Also, the dry mode controls the humidity of your room, while the PM2.5 filter ensures there’s clean air.

The double cool inverter has a lot of advantages to offer, such as faster cooling and maintaining your preferred temperature level. It’s also super quiet and helps in energy savings. The AC is beautifully made with an elegant glass finish. Certainly, the indoor unit will look good inside your house.

Like most of the units we’ve mentioned in this discussion, the Panasonic model has a stabilizer-free operation that allows it to function even in power fluctuations.

Lastly, the compressor comprises 100% copper tubing, which is a splendid choice for air conditioners. It features a blue fin coating that ensures the copper doesn’t rust and guarantees durability.

  • Faster cooling.
  • Controls humidity in a room.
  • It has a filter that cleans the air by eliminating particles such as dust.
  • It consists of a copper condenser that doesn’t corrode.
  • Provides a stabilizer-free operation.
  • The outside unit doesn’t have a protective cover against external elements such as the weather.


5. Sanyo 1.5 Ton 5 Star Dual Inverter Wide Split AC

Sanyo is yet another amazing AC that we recommend in our selection list. It’s one of the best ACs under 40000, offering Inverter technology and is a 1.5 ton capacity with a 5-star energy rating.

Sanyo 1.5 Ton 5 Star Dual Inverter Wide Split AC


  • 5-star energy rating for power efficiency.
  • 1.5-ton capacity for medium-sized rooms.
  • Dual inverter compressor for energy efficiency.
  • Cooper wire condenser for durability and quiet operation.
  • 100% copper wire for durability.
  • Glacier mode for instant cooling.

The Sanyo model is a split AC and comes with a dual inverter compressor. Thus, it has two rotating motors that adjust the power consumption of your AC based on its heat load. There are many benefits to this feature, including lower power bills and a noiseless operation.

We are impressed by the quality of the condenser, which is enhanced by the copper coils. The advantage of copper wire is that it enhances the AC’s cooling, has low maintenance, and boosts the shelf life. Another reason why we considered this model is the fact that the compressor comes with a five-year warranty, and this boosts your overall confidence when purchasing the unit.

If you live in a large house with spacious rooms, this model is an ideal choice since it features a 1.5-ton capacity. Hence, it cools medium to large-sized rooms of up to 180 sq. feet.

This model has other special features not present in regular ACs. For instance, you can choose Glacier mode, which ensures instant cooling, and the PM2.5 filter that purifies the surrounding air. Thus, this boosts the quality of the air at your home.

The cooling capacity of this model is outstanding at 5100W. It can cool even when the temperatures are 52 degrees centigrade. Additionally, it offers non-stop cooling with the stabilizer mode that ensures the AC cools your room even when there’s a voltage fluctuation.

We love the sleekness of the outdoor and indoor units. Hence these are a great addition to your home. The AC has an automatic setting which ensures that you don’t have to restart it after a power interruption. Also, it has a self-diagnosis feature that enables you to troubleshoot problems by identifying the error codes.

Another small but useful feature is the timer function. It lets you set time by just dialling a button. Thus, you don’t have to wake up from your sleep to turn it off.

  • Uses stabilizer free operation for maximum cooling.
  • Has a 5-star energy rating for energy efficiency.
  • Can cool the room even at high temperature.
  • It consists of copper coil condensers for durability and efficiency.
  • Can cool a large area.
  • Low noise.
  • It makes a lot of noise when using glacier mode.


6. LG 1.5 Ton 3 Star Inverter Split AC

The LG 1.5 ton has mind-blowing features that boost efficiency and helps in saving your money. The 3-star inverter split AC is not short of features and expectations.

LG 1.5 Ton 3 Star Inverter Split AC


  • Inverter AC with superior cooling, quiet operation, and savings.
  • Five score cooling store for assurance of cool air even at high temperature.
  • Has a 3-star rating on energy efficiency, which lowers your energy bills.
  • A self-regulatory mechanism that adjusts power consumption depending on the temperature mode.
  • Copper tubing ensures maximum durability and energy efficiency.

The first thing to note is the 1.5-ton capacity makes it suitable for medium to large-sized rooms such as the living room and the master bedroom. The condenser is made from high-quality copper, which makes not only makes it suitable for cooling but also ultra-durable. With 100% copper tubing, the compressor will offer exceptional durability in all regions of India, regardless of the level of pollution and weather effects.

This split AC comes with an inverter compressor, which is useful in managing your energy consumption. Therefore, it can detect the ambient temperature in a room and adjust accordingly for your comfort. Additionally, this compressor ensures a silent operation and is long-lasting.

The AC has a 3-star Energy Efficient rating and an ISEER value of 3.68. As you can see, you’ll still save a significant amount of energy with this AC. Another thing we love about this AC is the cooling store rating of 5, which assures optimal cooling at super-high temperatures.

One more feature that sets it as a solid pick for the best AC under 40000 is the Himalaya Cool Technology, which provides instant cooling by just touching a dial. Best of all, it uses active energy control, which limits the energy consumption of your appliance.

There are some extra safety measures, as well. Low levels of refrigerant can cause the appliance not to function. However, this model can detect when declining levels of the coolant and enable you to replace them before things get out of hand, preventing any unnecessary damage.

An HD filter removes tiny particles such as pollen, bacteria, dust mites, and more. For maximum comfort, you can select the comfort air feature on the digital screen, and this will ensure cool air in your room.

  • Ensures even distribution of cool air in the room.
  • The HD filter cleans the air by eliminating small particles and pathogens.
  • Condenser coils are made of copper for durability.
  • Provides a silent operation.
  • Sleek design that looks good in the room.
  • The installation process is slow and takes time to execute.


7. Voltas 1.5 Ton 3 Star Inverter Split AC

If you’re looking for a high-quality AC that runs efficiently and saves power, no need to look further. Voltas 1.5 ton inverter split AC has a 3-star rating and comes equipped with amazing features to ensure you get the best customer satisfaction.

Voltas 1.5 Ton 3 Star Inverter Split AC


  • Split AC with Inverter technology.
  • 1.5 ton capacity for medium-sized rooms.
  • 3-star energy efficiency rating.
  • A cooper condenser wire for superior cooling and energy savings.
  • R-32 refrigerant that’s eco-friendly.
  • Anti-bacterial filter for air purification.

This model features an inverter compressor which increases the motor speed, saving power while delivering faster cooling. Therefore, the Voltas cool faster and are more durable. Another excellent feature of this appliance is the HD filter that cleans the air in your room. The filter eliminates dust, bacteria, and pathogens in the room.

The appliance also uses an R32 refrigerant, which is the most common in the market. It has a lower global warming effect and Ozone layer depletion than traditional models that used R22 or R401A coolants.

You’ll be more comfortable using it as well, with the 100% copper wire that delivers a dual advantage due to the smoother gliding of the motors. Also, it offers a superior heat exchange, is durable, and easy to maintain. The AC also operates silently and thus lets you enjoy a peaceful night’s sleep.

The stabilizer-free operation ensures there’s optimal cooling even when there’s voltage comprising your comfort, safety, and savings.

Like most models in our review, the Voltas has a unique feature that ensures high-ambient cooling even at maximum heat. Therefore, this ensures you stay comfortable at high temperatures of up to 52°C.

If you live in coastal areas, you’ll notice that the air around can be humid and hot. Fortunately, this model has an active dehumidifier feature that controls the humidity during the monsoon season.

  • Saves on power usage.
  • Long-lasting performance.
  • Minimal noise.
  • The dehumidifier works well in coastal areas.
  • It’s climate-friendly.
  • The filter feature purifies the air.
  • Installation charges are high.


8. Sanyo 1.5 Ton 3 Star Dual Inverter Split AC

Our next product is the 1.5 ton Sanyo AC. It comes with outstanding features that many Indian buyers envy. The product is a worthy investment that will deliver the best value.

Sanyo 1.5 Ton 3 Star Dual Inverter Split AC


  • Features 3-star energy efficiency rating.
  • It has a dual inverter compressor.
  • The compressor comes with five years warranty.
  • Has a 100% copper coil for superior cooling.
  • It’s equipped with special features such as the glacier mode for quick cooling.
  • Offers stabilizer-free operation.
  • The cooling capacity of 5150W for a maximum temperature of 52˚C.
  • Has hydrophilic fins that protect against corrosion.

The main highlight of this Sanyo model is the dual inverter condenser. It’s a technologically advanced feature that regulates energy use depending on the temperature load or cooling needs. It can perform extremely well in diverse temperature conditions.

The copper tubes are durable and ensure quick heat transfer, thereby cooling your room quickly. The stabilizer-free operation ensures vital components while still delivering maximum cooling. The air conditioner works well at various temperature loads and regulates the speed to protect the vital components. It can deliver optimal cooling at 52˚C.

This model features a filter that purifies the air inside the room and prevents the buildup of dust and other impurities. Therefore, it boosts the efficiency of your AC and cooling performance.

The Glacier mode feature is a unique function of this model since it ensures faster cooling even at medium mode. Thus, you’ll enjoy high speed by simply touching the dial.

We also need to mention the Auto-restart feature, which enables the appliance to resume its original set-up when the power comes back. There is an Eco function which we find incredibly useful. It helps in optimizing the performance of your AC and ensuring there are energy savings.

As well, there is the self-diagnosis for identifying error codes in the AC because of a fault. It helps you to understand any issues that may affect your AC. There’s also the backlit remote that glows in the dark for better control and operation.

Even better, the model has hydrophilic fins, which offer protection against corrosion. Furthermore, these enhance the quality of the copper coils for long-lasting performance. Besides, there’s the sleep function, which is a significant aspect of this model. It enables you to set the time and ensure a comfortable night’s rest.

As a final point, the environment stays protected since this AC contains an R32 refrigerant.

Overall, it has all the great features you’d look for in an AC at a 40k price range. Hence, it’s certainly one of the best ACs under 40000.

  • Ensures there’s minimal power usage.
  • Has a noiseless operation.
  • Delivers pure and clean air.
  • Has a high-quality condenser thanks to the copper tubes.
  • Stabilizer-free operations save on buying a stabilizer.
  • Works even in very high-temperature levels.
  • The installation process is complex and requires a professional or after-sales service.


9. Godrej 1.5 Ton 5 Star Inverter Split AC

The final product in our selection list is the Godrej 1.5 ton star split AC. It’s an ideal choice for many people since it offers satisfactory performance. On top of that, it has many features that boost its performance.

Godrej 1.5 Ton 5 Star Inverter Split AC


  • 1.5-ton capacity ideal for medium-sized rooms.
  • Has an energy-efficient rating of 5 stars.
  • It has an inverter compressor to offer excellent power efficiency.
  • Golden fin condenser ensures additional durability.
  • Active-carbon and dust filter keep you healthier.

The Godrej model offers speed jet cooling at low energy levels. The machine operates optimally and, there’s no pressure even when temperatures are too high. In the end, you’ll save energy, spend less on power, and operate with less noise.

This model uses green inverter technology that ensures it continues to run and optimize the room temperature. It ensures better comfort and energy efficiency. The tri-filter function is an innovative feature of this machine. This model purifies the air in your room by getting rid of bacteria, allergens, dust, and harmful pathogens.

This Godrej air conditioner is a highly innovative appliance with smart features. For instance, the smart-diagnosis helps in detecting any fault or malfunction in your AC. The screen displays error codes that are useful in diagnosing problems with your device.

With the gold fin technology, you don’t have to worry about corrosion or rust in the condenser copper coils since it has gold fins that resist rust for long-lasting use. Also, the AC is safe for you and the environment since it uses R32 refrigerant that protects the environment against the greenhouse effect.

We love the compact design of this AC, which doesn’t take a lot of space on your walls or ceiling. The indoor unit is a stylish addition to your home.

As with the rest of the best AC under 40000, this AC is also super silent and therefore, this ensures you’re comfortable and get a peaceful night’s rest.

  • Offers a super silent operation.
  • The refrigerant is climate-friendly.
  • The condenser coils are corrosion resistant.
  • Has a self-diagnosis feature.
  • Filters the surrounding air.
  • Fast cooling.
  • The remote control is tiny.
  • Only has a vertical swing and doesn’t have a horizontal swing.


Recommended Reading: 11 Best AC in India 2021


Best AC under 40000 in India (2021) – Buying Guide and Tips

Our list of the best AC under 40000 depends on several factors. Here, we look at the star rating, energy consumption, noise levels, quality, user rating, and more.

Keep reading as we share the buying guide and the tips to help you pick your favourite option. Also, we’ll highlight the key features of different brands and provide an in-depth analysis based on user experience.

Recommended Reading: 9 Best AC Under 30000 in India 2021


How Do ACs Work?

An AC works by removing hot air from the inside and discharging it back into the room outside. Therefore, the room has a cool and comfortable temperature. In order to understand how an AC works, it’s important to look deeper at the internal composition.

An air conditioner uses three main principles to function: compression, evaporation, and condensation. Another important aspect is the refrigerant, which is a coolant or cooling liquid.

For the AC to work, the coolant goes through a compression process that converts it into a hot liquid. After that, the hot liquid passes via condenser coils and releases the heat.

The high-pressure hot liquid cools, and the expansion valves convert it into low-pressure liquid. The liquid then passes via evaporator coils while absorbing the heat from your room. Afterwards, the liquid goes through a conversion process to become a gas.

As the heat evaporates, the room cools. For this reason, it’s important to close the windows to allow the AC to suck in the heat. The process repeats itself until you shut down the AC.


Different Types of AC Under 40000

The majority of homes, offices, and businesses have central air conditioners that consume lots of electricity for cooling a few rooms.

Also, other people on a budget rely on a portable AC to deliver cooling. However, these are not reliable and hence the need for a highly-dependable cooling unit.

Luckily, you don’t have to spend a lot of money because some room ACs cost less and are energy efficient. In our discussion below, we explore the different types of Air Conditioners below 40000.


1. Split AC

As the name suggests, a split AC consists of two major parts. There is an indoor unit that you can mount inside a room. The other part is the outdoor unit, which you connect to an electric outlet.

Split ACs are popular due to their outstanding cooling ability. The total costs of these ACs differ, but you can expect to spend less than 40000 for a 1.5-ton capacity.

Most homeowners report a lower wattage in cooling their rooms. They have an energy efficiency rating of 4 stars and money savers.

Advantages of split AC

Rotary air conditioners come with noteworthy advantages.

  • Low energy consumption. It has a high EER ratio, and this means it can provide more cooling with less energy use.
  • Split ACs are worth your spending when compared to other cooling systems. They are durable and can last many years.
  • Less noisy since the condenser and the compressor features are out of the room.
  • You don’t need to install a split AC in every room as you can zone off your rooms. Thus, you have the freedom to choose which rooms require more heat or cool air.
  • Split ACs are less bulky and feature a profile design that doesn’t occupy a lot of space on the wall.

Disadvantages of split AC

  • The installation cost is high. Also, you’ll need a professional to install the appliance both on the inside and outside.
  • Split ACs are not suitable for multi-story buildings as they come in two parts, as it’s hard to install an AC on different floors of a building.
  • Although Split ACs are quiet on the inside, they can be a nuisance to your neighbours. Not ideal for crowded neighbourhoods.

Recommended Reading: 7 Best 1.5 Ton Split AC in India 2021


2. Window AC

A window AC comprises a single unit that houses the blower, compressor, and condenser. True to its name, your service provider installs the window AC on your window frame. Then, the blower faces the room and the other part overhangs on the outside. Window ACs are cheaper to install, unlike the Split ACs, and thus suitable if you’re on a budget.

Advantages of window AC

Rotary air conditioners come with noteworthy advantages.

  • Windows ACs are cheaper. Their energy consumption is low and is easier to control.
  • Windows ACs are less likely to disrupt your neighbours due to noise since, unlike the split ACs, they don’t have an external unit.
  • Windows ACs are easy to install with just simple tools. You can do it yourself or call in a professional.

Disadvantages of window AC

  • Windows ACs are bulky and require reinforcement when setting up to prevent accidental falls.
  • Unlike the split ACs, which are relatively quiet, window ACs are noisy indoors and hence disruptive.

Recommended Reading: 9 Best Window AC in India 2021


3. Portable AC

Portable ACs are cooling units that don’t require any installation before use. The appliance cools a room at a time, stores the heat, and then expels it outside using a duct that’s attached to a window.

They are lightweight, and you can move with them from room to room. They’re not as effective as split ACs and window ACs; however, they are a good option for people on a budget. They are affordable and cool your room during the summer.

Advantages of Portable AC

Rotary air conditioners come with noteworthy advantages.

  • They are movable, and you can use them in different rooms depending on your cooling needs.
  • If you don’t wish to invest in a split AC, a portable AC is a good option.
  • They don’t require prior set-up.
  • The energy consumption is low, and so you’ll get to save some money.

Disadvantages of Portable AC

  • It’s crucial to take note that this appliance is only suitable for small rooms and the performance is not satisfactory.
  • Comes with different types of Compressors, and most of them are not durable.

Window ACs are good options, but you’d have to pay much more than 40k to get a good one. Split ACs are the best AC under 40000. They’re expensive but also cost-efficient. You can get much better cooling from a Split AC of this price than a Window one.

Recommended Reading: Split AC vs Window AC 


Different Types of Compressors

The main purpose of air conditioners is to maintain a cool temperature inside a room. It uses a system where hot air passes through a coolant liquid and subsequently turns into a gas.

Essentially, an AC has three components, and the compressor is the driving force or the heart of an air conditioner. It sucks hot air under low pressure. Then it converts it to hot air under high pressure. The gas passes through a condensation foil before being conveyed to an evaporator via the expansion valve. A thermostat controls the ambient temperature to favourable levels.

There are different compressors, and they work uniquely depending on the AC type. Here, we have an in-depth analysis of compressors to help you understand how an AC works.


1. Reciprocating compressor

A reciprocating compressor is the most common and versatile. It features a piston that is located inside a cylindrical component. A motor powers the piston, enabling it to move and compress the coolant liquid. This kind of compressor is efficient, and usually, large ACs can accommodate up to eight cylinders.

Advantages of reciprocating compressor

  • The compressor is energy efficient, and this helps in lowering power bills.
  • It can work in spacious rooms where there’s a high demand for power and pressure.
  • It’s durable and a good value for money.
  • It’s versatile in that you’ll find that majority of affordable air conditioners use these compressors.

Disadvantages of reciprocating compressor

  • It’s complex with many components, which can increase maintenance and subsequent costs.
  • Low AC speed can lead to more power use and subsequently a high cost of electricity consumption.
  • The piston is prone to wear and tear.
  • It’s loud and thus can disturb your peace and that of your neighbours.


2. Rotary Compressor

A rotary compressor features a low profile design and is among the smallest. With this model, some blades hang in the cylindrical shaft. The blades move when the cylinder rotates. Subsequently, the coolant liquid is compressed inside a tiny space.

Advantages of Rotary Compressor

  • Unlike the reciprocating model, a rotary compressor is quiet and thus suitable for use in a home setup.
  • It’s affordable than most options on the market.
  • It doesn’t cost much to install this model.

Disadvantages of Rotary Compressor

  • The pressure released in every stage is low than that of a reciprocating compressor. Therefore, it may not work well in large rooms.


Inverter AC Vs. Non-Inverter AC – Which is the best?

The main difference is that an inverter AC regulates the compressor’s speed. It focuses more on regulating the temperature rather than cooling the room. On the other hand, a non-inverter AC motor runs non-stop and will only turn off when there’s a drop in temperature.

An inverter AC comprises advanced parts which require a higher level of maintenance. However, even though it comes at a higher price tag, it’s more energy efficient and leads to lower electricity bills.

If you have budget constraints, a non-inverter AC is cheaper and suitable for small rooms. However, you can consider an Inverter AC for long-term savings since it uses power depending on the temperature load, which leads to energy savings. Also, it cools fast and sustains cool air longer even when there are power fluctuations. An inverter AC is more quiet and suitable for use at home.

In a nutshell, an Inverter AC is the best. It’s even the best AC under 40000 since it has many incredible features and benefits.

Recommended Reading: 9 Best Inverter AC in India 2021


Copper Coil vs Aluminium Coil

A coil is an essential component of an AC and is found at the condenser and evaporator chamber. At the evaporator, it absorbs heat from the air inside the room. The refrigerant then cools down the air.

Both are metal and useful in heat transfer. However, there are a few differences between the two in terms of durability, corrosion resistance, and capability.


1. Copper coil

Copper is a number one choice for many manufactures since it’s durable and will deliver a long-lasting performance. Although copper can corrode due to external weather elements, most compressor models have bluefin or gold fin coatings.

Advantages of copper coil

  • Copper is a good conductor of heat and more efficient than aluminium.
  • Copper coils are easier to repair and have lower maintenance costs than aluminium.
  • They are more durable and good value for money.

Disadvantages of copper coil

  • Copper is more expensive than aluminium, and therefore, ACs with copper coils are more expensive.
  • It’s not easy to bend, and one would require a lot of copper coils to make different shapes.


2. Aluminium coil

Aluminium coils are an alternative for condenser coating. These are readily available and don’t cost much.

Advantages of aluminium coil

  • Aluminium is cheaper than copper, making aluminium coil ACs an excellent choice for many buyers on a budget.
  • Aluminium is more pliable than copper. It’s easy to bend to a variety of shapes.

Disadvantages of aluminium

  • Aluminium coils are less durable, and their maintenance cost is higher than copper.
  • Harder to clean.


Refrigerants Used in ACs (Coolants)

A refrigerant or a coolant is a chemical agent inside the AC for absorbing heat and providing cool air after running via a compressor and evaporator. There are several types of refrigerants, and it’s important to use a suitable one to avoid issues.


1. Chlorofluorocarbons (CFC)

Chlorofluorocarbons are a common refrigerant used in ACs. They were popular in the past but had negative effects on the environment. Indeed, environmentalists are against their use since the compound is not eco-friendly since it contributes to the greenhouse gas effect. The effect of this is the depletion of the Ozone layer.


2. Hydrochlorofluorocarbons (HCFC)

Hydrochlorofluorocarbons refrigerant comprises hydrogen compounds that are easily broken down and released into the atmosphere. This option is safer for the environment than the CFCs coolants and promotes sustainability.


3. Hydrofluorocarbons (HFC)

HFCs are a fluorinated coolant used in ACs and refrigerators. These products are man-made greenhouse gases and are a substitute for CFCs. They are eco-friendly, and their use is not likely to harm the Ozone layer.


4. Hydrocarbons (HC)

HCs are natural and non-toxic refrigerants. They are climate-friendly, with no agents that deplete the ozone layer. They are efficient and environmentally friendly, and highly recommended.


Terms Related To Power Consumption

ACs consume a lot of energy in homes, and it’s important to understand the terms related to power consumption.


1. Energy Efficiency Ratio (EER)

Energy Efficiency Ratio or EER is the coefficient of your AC’s cooling efficiency. This ratio presents the electricity consumption of your appliance. When shopping, this should be the first thing on your mind.


2. Co-efficient of Performance: (CoP)

The coefficient of performance or CoP is the ratio of temperature provided by your Air conditioner to its total power consumption. It measures the efficiency of the heat pump in heat transmission against its power consumption.


3. Star Ratings

Star ratings are a good idea to know the general power consumption and energy consumption of an AC. The higher the stars, the more efficient it is. 5 stars ratings are the best for an AC, as they provide the highest energy savings. However, the best AC under 40000 are usually 4-stars or at least 3-stars.


4. Indian Seasonal Energy Efficiency Ratio (ISEER)

Indian Seasonal Energy Efficiency Ratio (ISEER) is the yearly amount of heat an appliance or AC can eliminate from a room against the yearly energy consumption. A good ISEER rating for AC differs depending on the appliance.


What is Tonnage, And How Much Does a 40k AC have?

Tonnage is the cooling capacity of your AC and is measured in British Thermal Units or BTUs. It helps you in identifying the type and size of the AC depending on your cooling needs.

In terms of tonnage, a 40K AC has a 1.5 BTU that is ideal for cooling your house during summer. Additionally, a 1.5 tonnage is also ideal for cooling medium-sized rooms.


Usual Power Consumption of an AC and Ways To Reduce It

An AC consumes over twenty times more power than a fan and ten times more than a regular cooler.

Using an AC regularly can increase your energy consumption and costs. But, worry less, there are some measures you can take to reduce power consumption by 25-35% and boost your AC’s efficiency.

Firstly, ensure your AC is super clean by clearing the air filters of dust and lint. You can clean your AC fortnightly for efficiency. In addition, this will decrease the pressure on the compressor, thus reducing energy consumption by 15 %.

Besides, you can set the thermostat at between 22 to 24 degrees to reduce energy consumption. Further, have a regular check on the venting system. You can get an expert at least once a year to check for leakages and blockages.

Lastly, you can still save some energy by switching off other appliances which are not in use.

Recommended Reading: AC Power Consumption


Things to Consider Before Buying the Best AC under 40000

When shopping for an AC, you’ll discover that the market is overflowing with many of these. It’s hard to decide on the best option. There are some things you must know during the selection process. Keep reading as we explore the factors. You can get yourself the best AC under 40000 if you rely on the information we’ve provided below.


1. Size and capacity

Air conditioners come in different sizes and capacities. Therefore, you can choose one that will suit your cooling demands. In our review, 1.5 tonnage capacity AC can cool medium to large-sized rooms. On the same note, a compact AC is best suited for use at home as it enhances your room décor.


2. Power Consumption

Before you purchase an AC, check the EER rating, which offers an insight into the power consumption. The best ACs in our review have an EER of 4 stars. Energy efficiency means less maintenance cost and lower power bills.3. Inverter technology.


3. Inverter technology

Inverter technology is an important aspect of modern ACs. This mechanism allows the AC to self-regulate so that it consumes electricity depending on the room’s temperature by adjusting as needed. It helps in cutting on power spending and ensures a noiseless operation.

Recommended Reading: What is Inverter AC?


4. Air filters

It’s important to check whether the AC you’re about to buy has air filters for purifying the air in the room. An air filter eliminates dust, bacteria, particles, and other harmful pathogens.

Recommended Reading: Types of Air Conditioner Filters and How They Work


5. Cooling Speed

The cooling speed of an AC is yet another consideration to keep in mind in your search mission. Upon switching on your unit, it should deliver cool air quickly. By fast cooling, your AC uses less power, and this leads to energy efficiency.


6. Dehumidification

An AC should be a versatile appliance that cools and dehumidifies the air. At the coast area, the surrounding air is warmer because of high humidity.
Check whether the AC you’re about to buy has a dehumidifying function so that it cools the air beyond the humidity point.


7. Noise Level

Even though modern AC makes less noise than traditional models, some still make some relative amount of noise. Therefore, before you buy an AC, check the decibels the compressor will emit.


8. Control options

Every AC should have control functions that are clearly defined. Luckily, modern ACs come with digital screens for better control. Others have android and iOS integration through an Al-enabled app so that you can control seamlessly from any location.


9. Timer

Most modern ACs come fitted with a timer which enables you to set the time that it will automatically switch off. It’s an important function since you don’t have to wake up at night to switch it off.


10. Brand

Some people buy ACs depending on the brand. Some brands have a long history of providing durable and highly efficient products. You can check on the reviews and see what other buyers are saying.


11. Price

Of course, the price of any appliance influences your purchasing decision. AC prices vary depending on model, season, and demand. Typically, during cold months, an AC price is likely to be low, and thus it’s the best time to buy.


12. Warranty

A warranty is a guarantee that your product of choice is the best quality, and should it fail to deliver during a specified period, you can return it to the manufacturer. Most ACs come with a warranty of over ten years.


Best Air Conditioner (AC) Brands in India

Getting a product from a good brand will go a long way towards getting you the best AC under 40000. We’ll speak briefly about all the best air conditioner brands on the market.


1. LG

LG sets itself apart by providing highly efficient ACs on the market. It has a global presence, and the products are of top-notch quality. The company also has a long history of customer satisfaction. As we have seen in our discussion, the LG air conditioners in India are some of the most treasured by consumers.


2. Daikin

Daikin India is a subsidiary of Daikin Industries in Japan. It’s a popular brand that manufactures air conditioners in India and has a reputation for providing the market with efficient cooling appliances. Also, it has a reputation for installing the appliance through after-sales service.
It has a high customer satisfaction index than most brands in India, at least going by the positive reviews.


3. Carrier

The name Carrier originated from Willis Carrier, who invented air conditioners. As a pioneer and global leader, you’d expect the company to have a large presence all over the world. In India, Carrier is a famous brand for offering great air conditioning units. It has a large factory in Bawal, and its products are famous all over India.


4. Voltas

Voltas is an Indian company in the home appliances segment. It specializes in the manufacture of air conditioners and cooling systems. Voltas is an excellent selection, and some of the best brands in India for quality and performance.


5. Hitachi

Hitachi is a reputable company that provides a wide spectrum of ACs in India. The mother company is in Japan and produces superior appliances with advanced technology and features.


6. Panasonic

Panasonic brand is a Japanese company that produces different electronics. In India, it’s one of the largest supplies of ACs and cooling appliances. It offers stylish and innovative solutions to your cooling needs.


7. Blue Star

Blue Star Company manufactures the next-generation ACs in India. These appliances deliver optimal cooling with particular accuracy levels such as 0.1 or 0.5 degrees centigrade. Their ACs are energy efficient with reduced noise levels.


8. Whirlpool

Whirlpool is an American company with a reputation for delivering high-quality ACS. The air conditioners are versatile and highly innovative. In India, the brand has a wide presence and many loyal consumers in the domestic appliances segment.


Best Air Conditioners (AC) in India– Frequently Asked Questions

1. Is it alright to purchase an AC online?

Yes, the online market is quite vibrant, with many brands selling air conditioners. However, it’s important to buy from renowned brands and check for reviews and ratings.


2. Do I need a voltage stabilizer?

Depends on the AC you get. Certain ACs don’t need any extra stabilizers because they can handle power fluctuations by themselves. You can get an idea of how good they are at handling these by searching for stabilizer free operation in the description. In our review, most products don’t require a voltage stabilizer, which saves you some money.


3. What is a Dual Inverter AC?

A dual Inverter AC has a condenser with two rotating motors that adjust energy consumption based on the heat load.


4. Which brand should I go for?

There are several brands in our review list, which you can choose when buying an AC. Some of the most popular brands include Blue star, LG, Sanyo, Voltas, and Panasonic.


5. Does an AC with an Aluminum Condenser perform well?

Yes, it performs well in heat transmission, but it’s not as durable as a copper condenser.


6. What are Blue Fins and Gold Fins in some ACs?

When shopping for an Air conditioner, you’ll notice that some either have blue or gold fins. These functions are vital in dealing with corrosion and guarding the condenser tubes against rust.

Also, they help in lowering the cost of maintenance and repair. Both have their advantages and disadvantages, as we shall see below here.

With Bluefin technology, the coils are coated with anti-rust epoxy material to ensure the AC resists natural agents such as moisture or humidity. Therefore, your AC will perform efficiently, even in poor weather. Gold fins have a golden-hydrophilic coating to protect the AC against harsh elements.

If you’re on a tight budget, you can consider an AC with blue fins as their cost is lower than the gold fins ACs. Although gold fins ACs are more expensive, they have a higher corrosion resistance than blue fins.

Besides, the hydrophilic condensers boost the efficiency of the AC by accelerating the cooling process. They can run in coastal areas where there is a high rate of humidity as well.

Recommended Reading: Gold Fin vs Blue Fin Condenser Coils in AC


7. What is an AC dehumidifier?

It’s a component of an AC that delivers air over the coolant and then passes it on the heated coils to dry before eventually releasing it into the room. Thus, it removes humid air from the room and subsequently delivering a cooling effect.


8. What type of condenser works well in coastal areas?

Air from the coast air is humid and salty. Therefore, you need an AC with a dehumidifying function to eliminate humidity and cool the air. Likewise, ensure the condenser coils have a corrosion-resistant coating such as gold or bluefin for durability and efficiency.


9. Can the AC clean the room air?

Yes, the AC can clean the air in the room if it has a filter function. This feature eliminates impurities such as dust, bacteria, and other pathogens from the air. You can find it present in most of the best air conditioners under 40000.


10. What’s Mosquito Away technology?

Mosquito Away is a common term in AC technology. It minimizes the natural ability of the mosquito to detect carbon dioxide present in a room. Some modern ACs come equipped with this feature to repel mosquitos from the room.


11. How to keep an AC running well for a long time?

You can keep your AC running well for a long time by observing some basic procedures. For instance, you can replace the air filters regularly, clear the venting system, clean the air ducts and remove dirt and debris.

Failure to have a regular maintenance schedule can lead to problems such as blocked air ducts because of dirt or corrosion of the coils in the condenser. When this happens, your AC will struggle and consume more electricity.

It can also be handy to know about the common problems you might face with the AC, so that you can keep an eye out for them and fix them immediately if needed.

Recommended Reading: Common problems with an AC – and how to solve them!


12. How good are 40k ACs?

40K ACs are an ideal choice for many Indian homeowners because of their exceptional ability to cool faster and last longer. Besides, most have a 1.5 tonnage capacity, making them suitable for cooling medium to large-sized rooms. Also, they have a star rating of 4 for energy efficiency and thus save the cost of electricity.



In choosing the best AC under 40000, it’s important to buy an item with an upper hand in terms of both durability and efficiency. We suggest a dual inverter split AC, which allows for cost savings and a quiet operation. From our discussion, we’ve highlighted several brands for easy selection. Hopefully, you can now shop for your favourite appliance hassle-free.


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Sourav Roy
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