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What is a Whole House Fan?

A WHF is a natural cooling ventilation appliance that significantly cools down your home and eliminates the dependency for ‘manufactured’ cool air. Effective whenever outdoor temperatures drop below indoor temperatures, a WHF will efficiently lower the temperature in your home in just 3-4 minutes. WHF’s force the hot, stale air into the attic out through the roof vents, while at the same time drawing cool air in through open windows.