The QA-Deluxe 5500 delivers a powerful 5500 CFM (3945 HVI-916 CFM) and requires about 4.5 square feet of attic ventilation. | ENERGY EFFICIENT OPERATION - Model QA-Deluxe 5500(R2T) costs just pennies an hour to operate and comes with a 2-speed remote control with timer. Its ideal for two-story homes up to 3400 sqft and single-story homes up to 2400 sqft. It comes with a 10-year fan motor warranty, 3 years parts warranty and outstanding customer service and is PROUDLY MADE IN THE USA. | MODERN ENGINEERING ADVANCES - QA-Deluxe whole house fans consist of acoustical ducting, a precision spun aluminum fan housing, rigid support and mounting brackets with rubber bushings to reduce noise and vibration, a precision laser cut damper box with R5 insulation and heavy-duty support brackets that keep the damper off the drywall. | EASY INSTALLATION - Unlike other whole house fans, QA-Deluxe whole house fans are designed & engineered to fit between 16 & 24 inch on-center joists, no framing is required. A vertical wall mount adapter is available upon request for an additional $49 | QA-Deluxe whole house fans are PROUDLY BUILT IN THE USA

TIRED OF SKY-HIGH ELECTRIC BILLS? - Install a QA-Deluxe Whole House fan and cut your air conditioning bill by 50-90%. If you live in an area with hot days and cool nights, stop throwing money away on air conditioning and save by drawing in the cool fresh night air in to your home.