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How Do I Tell What System I Need?

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To determine what system you need we simply use a ratio of 2, 2.5 and 3 CFM for every 1 square foot of your home. This will give you a basic, advanced and superior system, respectively. We recommend closer to 3 CFM but no less than 2 CFM for the QuietCool whole house fan system to work at it’s full potential.