8" x 17" Lock-Top Damper - High Efficiency HVAC Airflow Control for Home & Commercial Ventilation Systems - Perfect for Ductwork, Heating, and Cooling Applications

Our 8" x 17"Energy-Saving Lock-Top Chimney Damper is a great addition to your chimney system. It seals your chimney top securely with its silicone rubber, creating a fit which will prevent any air leaks and save you money in energy expenses. Installation is simple, and the mounting to the firebox makes it easy to open and close the damper, making it easily accessible. Control your flue system and how much you spend on your energy costs each month. Not only does the damper affix easily, but it connects easily to a mounting in the firebox and allows for simple opening and closing of the damper. That gives you quick, convenient access to a reliable damper system adjustable to your energy needs. Don't let your conditioned air escape from your chimney, be in charge of your flue system and how much money you spend on your energy expenses each month with our 9" x 17" Chimney Cricket Energy Efficient, Top Sealing Lock-Top Damper. Do NOT use Lock-Top dampers with gas logs - failure to open could cause carbon monoxide to back up into the house. In case of a gas leak, gas could be trapped in the flue, resulting in an explosion. -Locks energy in with a seal of silicone rubber -Stainless steel lid attached to a cast-aluminum frame by an array of stainless spring wires -Includes a 30' drop cable which is easily operated with a handle mounted in the firebox -Features a safety device which maintains damper locked during chimney fires -*Not for use with gas logs* -Manufacturers lifetime warranty for all fuels -Size: 8" W x 17" L -Fits Inside Flue Sizes: 7" x 16"