1, Use ceiling or table fan as first line of defence against summer heat. Ceiling fans, for instance, cost about 30 paise an hour to operate – much less than air conditioners (Rs.10.00 per hour).



2, You can reduce air-conditioning energy use by as much as 40 percent by shading your home’s windows and walls. Plant trees and shrubs to keep the day’s hottest sun off your house.

3, One will use 3 to 5 percent less energy for each degree air conditioner is set above22°C (71.5°F), so set the thermostat of room air conditioner at 25°C (77°F) to provide the most comfort at the least cost.

4,Using ceiling or room fans allows you to set the thermostat higher because the air movement will cool the room.
5, A good air conditioner will cool and dehumidify a room in about 30 minutes, so use a timer and leave the unit off for some time.
6, Keep doors to air-conditioned rooms closed as often as possible.

7, Clean the air-conditioner filter every month. A dirty air filter reduces airflow and may damage the unit. Clean filters enable the unit to cool down quickly and use less energy.

8, If room air conditioner is older and needs repair, it’s likely to be very inefficient. It may work out cheaper on life cycle costing to buy a new energy-efficient air conditioner.