Helpful Tips about Air Conditioners in 2021

Bestcheck Author Hardik Jethva

Air conditioners have become an integral part of our lives. They are used in schools, colleges, offices and at home. Over the years the technology in air conditioners has been modified frequently. Today, these come in different shapes, sizes, and colours.

Quick tips to save energy consumption and money


Tips & Tricks

1. Adjust the temperature at night

The temperature during the day is much higher than that during the night. So before you go to sleep, it would be an excellent idea to raise the temperature in your air conditioner.

When you sleep, your body automatically cools down, so you don’t need to run the ac at the same temperature as during the day. If your room has attained a satisfactory temperature, you may also shut down the AC for some time.

If you AC has a “sleep mode” turn it on before you go to sleep, this is a great way to save money.

2. Additional cooling

A fan runs at a much lesser cost than an AC. After switching on the AC for some time, you will realize that the room has cooled down. Turn the AC off and switch on a fan. You may use a stand fan or a ceiling fan.

The fan will circulate the cold air within the room even if the AC is off. If your room has big windows, try opening them instead of using the AC. The fresh breeze from the window will cool your room down naturally and save you money as well.

Not opening the window and preventing fresh air from entering the room may damage your health. Make sure you let the sunlight occasionally enter the room to disinfect it.

3. Select your AC carefully

Buying a central air conditioning system may seem like a good idea, but it costs a lot more than any other type of AC. The centralized AC looks sleek and sophisticated, but it wastes a lot of electricity and can empty your wallet. Use window or portable ACs in place of a centralized or split AC. Window Ac creates the same amount of cooling effect but at a lower cost.

The system itself comes at a lesser price. Another user-friendly option is the portable AC. You do not have to install a centralized air conditioning system anymore. Buy a portable AC that you can move from one room to the other. The portable units are cheap and easy to maintain.

4. Keep the heat away

Turn off gadgets like a television or computer while the AC is on. Laptops, printers, TVs emit a massive amount of heat and raise the temperature of the room. Therefore, this affects the functioning of the AC. The AC consumes a lot more energy when other heat-emitting devices are turned on.

This is because the system has to put in more effort to attain a desirable temperature. If you are not using the tube light or the bulb at the moment, turn those off too. Any appliance that emits heat can damage the functioning of the AC. The system will get overworked.

5. Keep your air conditioner clean

The air conditioner may accumulate a lot of dirt and grease. Keep your air conditioner clean. Use a piece of cloth to wipe the exterior portions of the appliance. Maintaining it daily will make sure that the air conditioner works for a long time with any servicing.

Try to dust the wings of the system through which the cold air is discharged. Make sure everything is neat and tidy. This helps your AC to work smoother without consuming a lot of energy. Not cleaning the AC for a long time seriously hampers the cooling efficiency of the AC.

6. Cover up

Cover any window through which sun rays may enter. Use light-coloured curtains to make sure that the heat stays out and is prevented from entering the room. Dark colours absorb heat and then later radiate it slowly.

The light colours deflect the heat coming from the sun and keeps the room fresh. Once you start using blinds and curtains, you will realize that your rooms cool down much quicker. You can also switch to tinted glass. Use coloured lenses on your windows. This will keep the heat outside and help your AC work at an optimum level.

7. Get professional help

From time to time you should service your AC. a professional knows how to handle the unit and knows what to check. He will look at the unit thoroughly and replace or repair as needed. If your AC makes unusual noises or if you feel the cooling system is not working, call for an expert.

Taking things into your own hands may cause further damage and can be quite dangerous. AC includes a lot of ducts and wires. Trying to fix them on your own may create severe damage. Therefore, call up a servicing company and ask a professional to take a look at it. An expert knows how to deal with any problem that your system may create. Let him do his job.

8. Place your unit strategically

Make sure you choose the best position in the room before you place your system. It may seem like a good idea to put the air conditioner next to your bed, but that may create some problems. If the AC is too close to your bed, you may feel excessively cold while the rest of the room is still warm. Place the system at a height from where it can cool all parts of the room equally and uniformly.

Do not place the AC too high or in the corner. Make sure the discharged, cold air has enough room to circulate. Do not put it near a door that is frequently open even when the AC is on. If you find it challenging to find the perfect spot for your AC, try rearranging the furniture in the room. Place the furniture where you thin the air from the AC will reach.

9. Anybody home?

When you leave for work, make sure you turn off the main power switch on your AC. This will lower the cost a little bit. Leaving the AC on while you go out will raise your bill amount. Therefore, when you step out, draw the curtains and turn the AC off.

Power Consumption in Air Conditions

Power consumption in air Conditions

Air conditioners are a large unit. They carry out several functions at the same time, and therefore, they consume more electricity than any other device. If you are someone who lives in a humid and sultry part of the world, you likely spend a lot of money on a cooling system. In tropical areas, air conditioners are used throughout the year. This results in quite a spike in your electricity bill. The best air conditioner is one that cools down your room quickly without consuming a lot of electricity.

Buy an air conditioner that is energy efficient and has a smart cooling system. This will not only save you money but will also keep you healthy. Before buying an air conditioner, carefully decide on what size should you buy.

If you want to install the device in a small room but end up buying a 2-ton split AC, it will be a waste of your money. Measure the room in which you wish to install the system and then find an appropriate air conditioner. If the capacity of the air conditioner is more than what your room requires, then you may even fall sick frequently due to excessive cooling. Therefore, buy an air conditioner with the right capacity to save up on your bill.
Another factor that will help you determine the power consumption of your ac is the number of stars it has.

The more stars the device has on it, the more energy-efficient it will be. However, buying a device with more number of stars may cost you a little more. A split air conditioner with a capacity of 1 ton will consume 1.15 kW per hour in case of a 2-star system. The same device with a 5 star will consume only 0.98 kW per hour. Therefore, an air conditioner that has more stars on them will consume less power.

How is Electricity Consumption by Air Conditioners Calculated?

Electricity consumption mainly depends on duration. The energy consumption is calculated in kilowatt. If your air conditioner runs for a long time it will consume more units of electricity. Usually, if your air conditioner is used every day, it will make up for 70% of your electricity bill. It is important to buy an energy-efficient air conditioner to reduce the consumption of electricity.

Electricity consumption by air conditioner
  • An air conditioner with five stars and a capacity of 1 ton will consume 0.98 kW per hour. When the size is increased to 1.5 tons, the energy consumed will be 1.50 kW. If you install a 2-ton air conditioner, the energy consumed by it will rise to 1.72 kW per hour.
  • The figures are a little different in case of an air conditioner with three stars. A 1-ton air conditioner will consume 1.09 kW. A 1.5-ton air conditioner will use around 1.56 kW of power and an air conditioner with a capacity of 2 tons will use 1.92 kW of electricity every hour.
  • However, if you buy an air conditioner with two stars, it will consume 1.15 kW per hour in case of a 1-ton Air conditioner. A capacity of 1.5 ton will require 1.7 kW every hour. Two tons of air conditioner will use about 2.21 kW of electricity every hour.

The above figures hold only for a split air conditioner. A window or a centralized air conditioner will consume different amounts of electricity. It can be observed that devices with more stars are energy efficient and use less electricity. A device with 2 stars may be cheap but it will cost you a lot more every month.

Which is an Energy-efficient Air Conditioner?

  • A unit that is used to measure the efficiency of the air conditioner is the Energy Efficient Ratio also known as EER.

  • The EER represents a ratio. The ratio states the cooling capacity of the air conditioner to the input of power.

  • Before purchasing an air conditioner unit, find out about the EER to understand how efficiently the system will work.

  • Check out the label that has stars on it that represent how much energy the device consumes. These stars are assigned to every electronic device by the government.

  • The Bureau of Energy Efficiency or the BEE came up with the concept of energy stars.

  • The Bureau tests the efficiency of the device and then assigns stars to it based on the results.

power consumption chart for air conditioner

What Does BEE Star Rating Mean?

The Minister of Power established the BEE rating strategy in 2006. Any appliance would have to be tested by the Bureau and assigned a rating. The number of stars is directly proportional to the efficiency of the device.

  • The BEE rating is represented on a 5-point scale. More number of stars denote that the appliance is extremely efficient, consumes less energy and saves you money. Therefore, appliances with more stars are more cost-effective.

  • All domestic electrical appliances have the energy star label issued by the BEE. These labels can be found on appliances like the air conditioner, the refrigerator, the washing machine, televisions, geyser, and many more.

  • The main idea behind the establishment of the BEE rating was to inform consumers more about the product before the purchase. Today, the label is seen on all appliances. Customers are beginning to realize the importance of the energy star rating.

  • Looking for the BEE label is a fantastic way to gauge whether the product is original or not.

Types of Air Conditioner

types of air conditioners

Air conditioners are used throughout summer. It is the best way to beat the heat and keep your productivity on track. There are different types of air conditioners available in the market:


Tips & Tricks

1. Split Air Conditioner

Split systems are the most common type of air conditioners. Every home has at least one split air conditioner. It is a much more modern system than the former window units. The split systems look better and polished and come in several variants and colours.

The split air conditioner comes with a compressor, a condenser, and an evaporator. Apart from these components, split ACs have a built-in fan that can be controlled and wings for the distribution of air.

These systems have several features. The split air conditioners have two units. One is installed within the room, and the other unit is installed on the outer part of the house. Two elements are connected with the help of a rubber duct or tube.

The main advantage of a split air conditioner is that the fan and the evaporator installed within the air conditioner have their thermostat. The part of the machine that is huge and noisiest is the compressor, and in a split air conditioner, it is placed outside the room, which makes it more comfortable and pleasant. This makes the systems quite affordable and inexpensive, unlike window air conditioners.

Split systems are not dull. These come in beautiful designs that you can match with your wallpaper to give your room or house an aesthetic look.

However, it is to be noted that split systems are more suitable for domestic purposes as its cooling capacity is much less than that of a centralized system. A split air conditioner can create quite a fuss during its installation. You will need to pay a hefty amount to get the system mounted on your wall, and professionals should only do it.

2. Window Air Conditioners

Window air conditioners were quite the craze when it launched. It was widely used when it first hit the market. Today we do not see many window systems as they have been replaced by a more efficient split air conditioner.

The window systems are quite cheap and affordable. You can easily find them in a hardware shop. When it comes to cooling, these systems do a decent job. These are usually white and do not come with a remote. You will have to adjust the settings on a panel that is placed on the system, however, you may find a remote with the expensive ones.

These systems can be placed anywhere. These are easy to handle and install. Window air conditioners cost a lot less than any other type of air conditioner and it is cost-effective. Window air conditioners can be easily found in the market. These are still produced in bulks. The window system does not require too much maintenance and can be used daily without any trouble.

The main disadvantage of a window air conditioner is the noise. The window system creates a lot of noise as it runs. Sometimes the noise is excessively loud and may cause a headache or disturbance in sleep. In case of very loud noise, get your air conditioner checked and repaired. Another factor is safety and security, as it can be accessed from outside the residence.

From an aesthetic point of view, a window air conditioner is much less favourable than the other variants. Moreover, warm air can easily get in if the sealing while the installation is faulty and is not leak-proof. During the installation, you may want to talk to a professional regarding this and get the wall sealed around the window air conditioner.

3. Centralized Air Conditioners

Centralized air conditioners are expensive and offer premium cooling. It is most appropriate for offices, shopping malls, or hospitals. The central air conditioner can cover a lot of ground. You may also install this system in your house. The system will work in every room simultaneously. The centralized system has a condenser, an evaporator, and a compressor.

These are used to cool a big space and may use a lot of power. Therefore, check your power consumption month to monitor the usage of these systems.

An advantage of the central air conditioning system is that it is extremely comfortable and the air is distributed uniformly. Unlike window systems, these do not create any noise. They run quietly and do not create any disturbance. With centralized air conditioners, you will be able to enjoy the peace in your home or home.

With these systems, you do not have to worry about cleaning or servicing them frequently. These air conditioners filter the air continuously and do not allow any dust or allergen to irritate you.

Installing a centralized air conditioner may take days. The installation cost is quite high. There is a lot of ductwork so you will need to make provision for those.

Unless your house is specifically constructed for centralized air conditioning, you may face quite an amount of trouble making space for all the ductwork. Centralized systems are the most expensive option among the different types of air conditioning. Not only does the system cost a substantial amount of money, but the electricity bill is quite high as well. The system consumes a lot of power that can burn a hole in your pocket.

The centralized air conditioners word simultaneously in all rooms. Therefore, you cannot turn it off for a specific room that you are not occupying at the moment. For example, at night, when you are sleeping in your bedroom, the air conditioning will still be running in your drawing-room. This results in the wastage of a lot of energy.

Therefore, you do not have any control over the functioning of the centralized systems as you cannot partially turn it off or on.

4. Portable Air Conditioners

If you want to take your cooling system along with you in every part of your house, portable air conditioners are the best option. These are easy to install and you can carry it with you wherever you go.

These units stand on the floor and can be handled simply. These units come in different shapes and sizes. They give out cool air, while the warm air is discharged into the exterior part of the house with the help of a pipe.

These are inexpensive and handy. Though they do not cool as efficiently as a window or split air conditioners. The low cost of buying a portable AC makes up for it. However, portable units may sometimes create noise and disturbance.


Air conditioners have become a necessity in every household. The family gathers around it during the summer months. While it feels very calming and relaxing to sit in an air-conditioned room, it may cost a huge sum. Therefore, before buying any electrical appliance you should learn about its advantages and disadvantages.

The main aspect that you should keep in mind while buying an electrically powered device is how much energy it consumes. To get an idea of the efficiency of your air conditioner, take a look at the label on it before purchasing it. A label with stars is assigned to every appliance by BEE.

An efficient appliance is depicted by a higher number of stars. Selecting an air conditioner may be quite a difficulty especially with all the different varieties available in the market.

To understand what kind of air conditioner you need, the primary thing that you keep in mind is the room or area for which you are purchasing the unit. For a smaller area, you will need an air conditioner with lesser capacity. If you want to use the unit in a much bigger area, you should go with a 2-ton AC.

The budget is another important factor. If you have a lower budget, go for a decent window air conditioner. This will effectively cool your house on a budget. If you want a fancier and more efficient air conditioner, the split AC is the perfect option for you.

For an outstanding and luxurious experience, you may want to install a centralized air conditioning system. Therefore, plan carefully before buying an air conditioner.

There are mainly three types of air conditioner- split, window, and centralized. If you want to install the system at home, it would be best to go with the window or split AC.

Check for any unusual smell or noise. If you feel that your air conditioner fails to cool down your room within a stipulated amount of time, it may be a good time to call a servicing company.

Air conditioners come with labels that have stars marked on them. These are a five-point scale and the stars are assigned by the BEE. More stars mean that the appliance is more efficient and more cost-effective.

If you use your air conditioning system for domestic purposes, then get your Ac serviced once every year. This is more than enough for window a split ACs. However, if you have a centralized AC it would be good to get it checked at least twice a year. Air conditioners in offices work for longer hours and are used to keep equipment cool and in proper shape. Therefore, these ACs work harder and need to be serviced more often.

If you have any questions please feel free to write a comment


  1. Rakesh Sharma says: on April 15, 2021 at 4:06 am

    Some really useful tips on using an Air Conditioner. I would say every one must follow this not only to save money but also to reduce the CO2 emissions.

  2. Salman Saeed says: on March 18, 2021 at 1:05 pm

    Good tips for saving money on Air conditioners. I always prefer to buy a 4 star or 5 star AC that consumes less power.

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