While a ceiling fan does not necessarily lower the temperature of a room, it does make the room feel cooler by providing a circulating breeze. Effective circulation can make you feel up to 8 degrees cooler, and reduce air conditioning bills by up to 40%. Ceiling fans use the body’s natural air conditioning system. The movement of air down from the ceiling fan and across your entire body helps cool you down.
Depending upon the speed your ceiling fan is on, the breeze generated evaporates moisture on your skin caused by heat. As a result, this provides a natural cooling effect, especially on hot and humid nights. Many people prefer a fan to air conditioning. This is due to the latter can make your skin feel dry and can block up nasal passages. When ceiling fans are used in conjunction with air conditioning, substantial energy savings can be obtained.
When using your ceiling fan with air conditioning, you can set the temperature of the thermostat on the unit higher. As a result, you reduce the energy being consumed, while still maintaining the same level of comfort.
In the winter months, you should run your ceiling fan in the reverse mode using the Summer/Winter switch. All Martec ceiling fans are reversible and have the Summer/Winter settings. Since heat rises, when heating your home in the winter the temperature of the air at the ceiling of the room can be up to 15 degrees warmer than the air at ground level.
This is very inefficient. Heaters have to work harder and for longer to warm up the room at ground level. However, if a ceiling fan is used in the Winter mode in conjunction with the heater, it will push the warm air up against the ceiling and then down the walls. This gently re-circulates warm air through the room, which means that heaters will not have to operate for as long, or at such a high-heat setting. As a result, you reduce your energy consumption and saving you money.
This technique has been proven to lower heating costs as much as 10%.