Whole house fans pull cooler outdoor air into the home through open windows and push hot indoor air up and out through the attic. This creates rapid air exchange that can cool the home quickly without relying solely on air conditioning.
Whole house fans can help reduce cooling costs by decreasing how often the air conditioner needs to run. They also improve indoor air quality by bringing in fresh outdoor air and flushing out stale air, odors, and heat buildup from the home.
Homes in areas with significant temperature drops at night often benefit the most. Proper attic ventilation is important to ensure heat can escape effectively, and fan noise levels should be considered when selecting a system.
Done! can help homeowners determine whether a whole house fan is a practical and cost-effective cooling option based on home design, ventilation, and local climate conditions.