When the fan is turned on, typically during cooler evenings or early mornings, it creates negative pressure inside the house. This pulls fresh outdoor air in through open windows and doors while forcing warm indoor air up into the attic and out through ventilation openings.
To operate effectively, windows or doors are opened to allow outside air to enter. The fan then pulls hot indoor air upward, and cooler outdoor air flows in to replace it. This continuous air exchange lowers indoor temperatures and helps refresh the air inside the home.
Whole house fans work best when outdoor temperatures are lower than indoor temperatures and when the attic is properly ventilated. Used correctly, they can reduce reliance on air conditioning and provide fast, natural cooling.
Done! installs whole house fans designed to improve airflow, support efficient cooling, and enhance overall home comfort.
