Posted on: June 8, 2011
Take the Heat Off
Forget the A/C: Ceiling fans keep temperatures steady for less
By Afi-Odelia E. Scruggs
CTW Features
At one time, the ceiling fan seemed headed the way of miniskirts and go-go boots. But when the energy crises of the '70s arrived, complete with blackouts and long gas lines, the mousy brown wallflower of its time got renewed respect.
Now, ceiling fans are a stylish mainstay of homes and businesses and are more energy-efficient and quieter than before, says Colleen McCracken, a spokeswoman for Lumens, the lighting products company.
"Advancing technologies are making fans consume less power and run smarter, on top of the fact that fans are already more energy-efficient than air conditioning," McCracken says.
Rules for the rotor
In the summer, the blades should turn counterclockwise to push air downward and force cool air to the edges of a room. (Reverse the direction in the winter to redistribute warm air.) Following these rules can make a fan a useful supplement to an air conditioner. The California Energy Commission estimates that a ceiling fan can make a room feel four degrees cooler.
"That means if you're using air conditioning along with your fan, you can set the thermostat at a higher than normal setting to save on energy," according to the organization.
The fan doesn't actually decrease the overall temperature of a room, it simply cools off the occupants like a cool breeze. Because heat from the motor can make a room hotter, it's best to turn off fans when a room or building is empty.
Hot or not?
To find the most energy-efficient ceiling fans, look for the Energy Star rating. These fans have met efficiency guidelines set by the U.S. Environmental Protection Agency and are up to 50 percent more efficient that conventional fans. Lists of qualified products are listed at www.energystar.gov.
Although the Energy Star site doesn't say which fan is the most energy-efficient, Hansen Wholesale does. The retailer recommends Emerson's Eco fans with direct current motors. Fans with direct current motors are smaller, lighter and more powerful than fans that run on alternating current. Based on Energy Star ratings, Eco fans are three to four times more efficient than their competitors.
Keep it clean
Any fan needs proper installation and maintenance. The fan should be anchored to a ceiling joist. If that's not possible, use a ceiling fan mounting bracket. Dust the fan regularly and clean the blades with a damp cloth. Never use water or liquid on the fan motor.