Chimney 9520 13 in. x 13 in. Lock-Top Ii Chimney Cap-damper

Traditional dampers are located in the "throat" of a fireplace. They are made of cast-iron and are housed in a low-tech frame work. These cast-iron dampers do not seal well-they have a leaky, rough, metal-to-metal seal. Recent lab studies have shown that even a new throat damper can leak up to $200 of heating and cooling a year. Imagine how much energy an old, rusted out damper leaks! Lock-Tight Energy Saving Dampers seal tightly to save you money. Lock-Top's rubber gasket seals tightly like a storm door for your fireplace, and keeps heating and cooling dollars where they should be...in your home. Lock-Tight mounts on top of your chimney to keep out animals and rain, and easily operates from inside your firebox, sealing tight every time you close it-eliminating any draft. Stainless Steel is the most popular cap material due to its longevity and flexibility of fuel being burned. Meaning if you have a wood fireplace and switch to gas logs, the Stainless Steel Cap can handle the change with no concern.