Electricity Saving Tips For Homes And Offices

Desert Air Coolers better option than Air Conditioners for hot and dry places

By on January 21, 2014

Air Conditioners can significantly increase electricity bills is a fact that is known to many people, but still many people buy it thinking that buying an air conditioner has become a necessity. While we can agree to an extent to the fact that temperatures have increase a bit in last century, but it is not that the life was difficult when there were no air conditioners. For a long time, people in India, especially those living in hot and dry climates used to rely more on desert air coolers. The coolers not only cooled the rooms, but also kept the electricity bills low. Consuming about one tenth the amount of electricity as compared to air conditioners, air coolers were not a big dent on the pocket as compared to air conditioners. So if you are someone who is concerned about rising electricity bills due to air conditioners, and you live in an area that is hot and dry, switching from an AC to air cooler can be the easiest energy saving option.

AirCooler

Comparing Capital Costs and Operating Costs

Air Coolers are way cheaper as compared to Air Conditioners. They cost about 80-85% less as compared to Air Conditioners, thus making them very cheap to install as compared to an air conditioner. For a 200 sq ft room, a right sized air cooler would cost about Rs 6000-8000 whereas an Air Conditioner would cost about Rs 35000-40000.

Even if we compare electricity consumption, air coolers consume 80-90% less electricity as compared to air conditioners. In the example mentioned above, a 1.5-ton AC would consume about 1.2-1.5 units in an hour, whereas an air cooler would consume just 0.2-0.3 units in an hour.

Comparing Air Quality benefits

Air Conditioners by design cool the internal air. They take the internal air in a room and cool it down to the temperature set on the thermostat. They also remove the moisture from the air and make it dry. So all in all, the same dry air keeps getting circulated in the room. There is no option to get fresh air from outside while using air conditioner.

Whereas in case of Air Coolers, fresh outside air is taken, cooled and pushed in the room. Fresh air is taken from outside and passed through an evaporative pad containing water. The hot dry air cools down when it comes in contact with water on the evaporative pad. Although there is no option to control the temperature in air coolers, but it always supplies fresh air.AirCoolerProcess

Source of Photo: www.symphonylimited.com

Air Coolers are Greener

If going green is something that you are concerned about, then Air Coolers are the best option for you. Air Coolers use water as refrigerant, whereas Air Conditioners use CFCs or Chloroflurocarbons that are harmful for environment. Although plans are being made to phase out use of CFCs as refrigerants, but implementation of the same will take time. The easiest way to be green is to use Air Coolers.

Even if we consider carbon emissions for generating electricity, use of Air Coolers turns out to be a greener option because it uses 80-90% less electricity as compared to Air Conditioners.

Installing air coolers

The most common place where people install desert air coolers is on one of the window in a room. But at times there are situations when there is no window or a very small window in a room. In case you have option of setting up an air cooler on the terrace, then you can set up a big air cooler on the terrace with a pipe/vent system to deliver air in all rooms. Such a setup will also help reduce the sound in a room generated by air coolers.

Conclusion

If you live in an area that is hot and dry, air coolers are the best option. It not only helps reduce electricity bills, but also helps improve the air quality in a room. And on top of that it is the greenest option to you can opt for.

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There Are 9 Comments

  1. shani mahadeva says:

    Any info on most efficient exhaust fans for use in Air coolers? Superfan for ceiling is great but they don’t have one for exhaust.

  2. vijeetgv says:

    Hi Abhishek,
    Do you know any good dealers/makers of traditional style desert coolers in/around Mumbai area? One of my close relatives want a custom-made one but there’s nobody who’d be willing to assemble it for her. All are selling branded coolers with very high prices.

    • Abhishek Jain says:

      Hi,

      I can suggest you branded coolers, but I do not have knowledge of dealer/makers of desert coolers in mumbai.

  3. Abhishek says:

    The cool air of desert air coolers and the pleasant smell of new ‘khus’ grass is incomparable to anything an AC can deliver! But only in dry and hot months like April and May. After that the climate becomes really humid and then these coolers are of no use. It is sad to see the demise of desert cooler because we have grown up with these and we never had any problems once they started cooling. They also drew in fresh air from outside and kept the house ventilated. Although once the humid months came, they became utterly useless and they increased the humidity inside the house manifolds. We had to get rid of desert coolers because the humidity caused by them was damaging electronic components in TVs and computers. Also they were providing a lot of moisture for mold to grow in our home and there were a lot of health issues because of them. After we stopped using desert coolers we noticed improvement in allergy symptoms and the appliances also stopped malfunctioning. So every thing has its pros and cons. Desert coolers will be a good memory for people who have used them.

    • sunil says:

      Very brilliant sea of information:-) sir i am from mumbai and we stay in chawl 180 sqft room,its very damn hot here in mumbai,sir can you pls recommend some brands coolers which can keep my family cool,buying an AC is not possible due to financial crunch:-) total 4 members family

      • Abhishek Jain says:

        Hello Sunil,

        Air coolers are not very effective in Mumbai as the climate is quite humid and air coolers just add to the humidity. ACs work the best in Mumbai.

        Regards,
        Abhishek

    • Saurabh says:

      Hi! Abhishek,

      Your extra comments below the above article is the real ‘cherry on cake’, as it literally banished the doubts/ confusion I was having to choose between an Air-cooler and an Air-conditioner.

      Thank You!

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