Cool Attic 11 in. H X 30 in. D 2 speed Whole House Fan

The Cool Attic 30 in direct drive 2-speed whole house fan is designed for houses with 2000 to 3000 sq ft attics. It offers an efficient way to reduce cooling costs by pulling fresh air in from the outside, expelling the warm air up into the attic and pushing it out through your attic exhaust vents. This unit requires a minimum of 10-12 sq. ft. of net free exhaust vent area to perform correctly. Low vibration direct drive design and a 4-blade aluminum fan assembly contribute to quiet and reliable performance.