Seal Tight Chimney Damper - 18" x 18"

The Seal Tight Damper is a low-profile, top mounted damper constructed of rustproof stainless steel and cast-aluminum. Designed with a two part, high-tech gasket system, this damper provides an extremely effective, air tight seal by utilizing a liquid gasket, which hardens to form an efficient seal. The primary gasket sits in a channel inside the damper frame, while the secondary, liquid gasket, sits underneath the front portion of the damper lid. These two gaskets provide the most efficient seal possible! When closed, this low profile damper is a great solution for saving paidin energy dollars for homes with leaky or missing dampers. Heat loss up the fireplace chimney accounts for an average 8% of your home heating costs. The Seal Tight Damper helps prevent this heat loss. Our models are available in 7 sizes:. . 8in X 8in Fits inside flue from 6-3/4in X 6-3/4in up to 9in X 9in. 8in X 17in Fits inside flue from 6-1/4in X 14-1/2in up to 8-3/4in X 16-3/4in. 9in X 13in Fits inside flue from 6-1/2in X 10-1/2in up to 9in X 12-3/4in. 12in X 16in Fits inside flue from 9-1/4in X 13in up to 11-3/4in X 15-1/2in. 13in X 13in Fits inside flue from 10-1/8in X 10-1/8in up to 12-3/4in X 12-3/4in. 13in X 18in Fits inside flue from 9-5/8in X 15in up to 12-3/4in X 17-1/2in. 18in X 18in Fits inside flue from 15in X 15in up to 17-3/4in X 17-3/4in