Whole House Fan Sizing Calculator

Whole House Fan Sizing Calculator

How to Know What Size Whole House Fan You Need

 

In order to get the right-sized whole house fan, you'll need to size it to exchange the appropriate amount of CFM (cubic feet of air per minute). Our whole house fan sizing tool can help you determine the right size for your home without doing a lot of math..

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Whole House Fan Sizing Calculator
Enter House Square Footage (ft)


Enter Ceiling Height (ft)
Your Required Whole House Fan Airflow (CFM)
Approximately
CFM
For Effective Cooling
Approximately
CFM
For Faster Cooling

Shop Whole House Fans

 

 

What is a Whole House Fan?

A whole house fan removes warm air from your home and pulls in fresh, cool air from the outdoors. It's centrally installed in the ceiling of your home, and moves air out through ductwork in the attic. Perfect for the shoulder seasons of spring and autumn when the outside air is cooler, a whole house fan can save an estimated 50%-90% off traditional air conditioners.

Keep in mind that you'll need to keep some windows open when using a whole house fan. As the fan sucks the warm indoor air out the attic, it makes room for cool, outdoor air to rush into the home below. This creates an invigorating natural breeze. Learn more in our whole house fan buyer's guide.

 

Shop Whole House Fans

 

Recommended Whole House Fans
Model No.
Max Air Flow
Max Sound Level
Duct Run
Effective
Cooling
Effective
High-Efficiency Cooling
To meet the recommended air change rate, your home will require two or more fans. Please contact us at (866) 554-4328 for help selecting the right whole house fan solution.
Faster
High-Efficiency Cooling
To meet the recommended air change rate, your home will require two or more fans. Please contact us at (866) 554-4328 for help selecting the right whole house fan solution.

Ken, the eComfort Product Expert
By 
Product Expert
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