QA-Deluxe 5500(W) Whole House Fan 3946 CFM (HVI-916 Certified Airflow Rating) 2-Speed Wall Switch/Timer R5 Damper

Natural ventilation cooling system using modern technology and engineering. Installing a QA-Deluxe whole house fan can significantly reduce your air conditioning bills. If you live in an area with hot days and cool nights, stop throwing money away on air conditioning and save by drawing the cool night air into your home. This is not the old belt drive, loud, noisy and vibrating whole house fan of the past. QA-Deluxe whole house fans use acoustical ducting for quieter operation. An R-5 insulated gravity damper isolates the living area from the attic when the system is not operating. Easy Installation. Unlike older style whole house fans, QA-Deluxe Fans are designed and engineered to fit between 16 in. and 24 in. on-center joists, no additional framing is required.QA-deluxe 5500 is designed to cool 1-story homes up to 2400 sq. ft. and 2-story homes up to 3400 sq. ft.10-year fan motor warranty3945 CFM (HVI-916 certified airflow rating)662-Watt, 2-speed PSC motor ensures efficient operation2-speed wall switch ...