Leaving Your Ceiling Fan On Won’t Cool Your Home While You’re Away
According to WCNC Charlotte, ceiling fans only cool you, not the air in the room. This means leaving your fan on if no pet or person is home won’t make a real difference.
The U.S. this summer has experienced heat waves pushing temperatures up to above 90 degrees Fahrenheit in many places. This is causing many individuals to try and figure out ways to keep their homes cool this summer without pushing their electricity bills up to high. This has led to many people wondering if they can just keep a ceiling fan on to cool their homes.
University of Florida IFAS Extension, a science resource that includes research about family and consumer sciences, says that ceiling fans don’t actually lower the temperature of a room at all.
The Home Depot says that ceiling fans operate by moving air. This makes people feel cooler and more comfortable but doesn’t actually lower the room’s actual air temperature.
Your body actually cools itself through the evaporation of sweat says Energy Vanguard. According to North Carolina Advanced Energy Corporation, this evaporation is actually accelerated when air moves over the skin.
Energy Vanguard also explains that moving air creates a process called convection by carrying carries heat away from your body.
So, fans help to cool your body through both convection and evaporation at the same exact time.
Although it doesn’t actually change the room’s temperature, the U.S. Department of Energy (DOE) says if you turn on an effective ceiling fan, you could likely raise the temperature of your thermostat by 4 degrees and still feel just as comfortable as before.
However, the DOE adds that you should “be certain to turn off ceiling fans when you leave a room.”
Running a ceiling fan won’t cool off anything when no one is home. It also may increase the heat of a room if run for too long.