pooja fans can be great electricity savers during summer months if your electricity bills are high due to high air conditioning load. There is significant amount of electricity that this small appliance can save and can help you avoid air conditioner. But it is not a magic wand to save electricity. It is very important to have a right kind of ceiling fan installed with its right maintenance and operations. A poorly installed fan of bad quality can waste a lot of electricity.pooja fans do not change space air temperature; instead, they move the air around to change the thermal sensation of the occupants of the room. Fans move the air around the human body or the occupants in the room and the air takes off the heat surrounding the human body. It also helps in evaporation of the sweat which makes a human feel cooler. This makes a human feel 2 to 4 degree centigrade cooler. With very less electricity consumption (or fewer units consumed in electricity bill), a ceiling fan can give good comfort in warm and particularly in humid climates.The electricity saving and efficiency of a ceiling fan depend a lot on the type of fan selected and proper installation. It is very important to make sure that you read the instructions by the manufacturer before you buy a ceiling fan. There are few things that one needs to check before installing a fan pooja fans come in various sizes from 900 mm to 1400 mm with 1200 mm size being the most common. Below table specifies the ideal size of a fan for various room sizes.