"This Tamarack Insulated Whole House Fan cools your entire house for less than the cost of operating a light bulb. Energy-efficient operation drastically reduces air conditioner use by drawing in cooler outside air and exhausting hot indoor air. U.S.A. Air Delivery CFM 1,150/1,600, Amps 1.16, Volts 115, Watts 140, Power Cord ft. 6, Speeds qty. 2. R-38 insulated doors create an airtight seal between the attic and living space when not in use Mounts horizontally or vertically on either 16in. or 24in. on-center floor or wall joist Plugs into a standard outlet and includes a remote control UL listed"