The RS-9 Exhausto Fan cures smoking fireplaces and woodstoves. It is easy to install and mounts to the top of the flue. Included is mounting brackets a fiber mat and the adjustable speed control that s installed in the room near the fireplace. The Exhausto Fan runs quietly and uses less electricity than most light bulbs. This fan can also be used to clear odors out of the room. The motor is maintenance free. Includes a six-month unconditional money back guarantee a 2-year factory warranty and 10-year warranty against perforation corrosion. The RS-9 produces 450 CFMs weighs 29 lbs is 10in high with a 12in X 12in base.