How To Use Your Whole House Fan

Updated: May 27

Whole house fans are the most efficient and cost-effective way to create a healthy, comfortable environment in your home. Many are designed to be self-sustaining, run for pennies an hour, and require little to no maintenance. Nonetheless, knowing how your fan works — and how to use it — will ensure you're getting the most out of your whole house fan system, maximizing the benefits and prolonging the life of your fan.

How It Works

Your whole house fan is ready for action anytime the temperature is cooler outside than it is inside your home or attic space. Simply open a few windows 4-6 inches to let the cool air in, turn your WHF system on and enjoy the nice, cool breeze as fresh air travels through your home and out your attic. That's it! With proper ventilation, a whole house fan system can completely exchange the air in your home in as little as 3-4 minutes, replacing warm, stale indoor air with a cool and comfortable environment for hours — even during the hottest times of day!