Chimney Dampers come in a few different designs based on several factors You might be asking yourself.. which type of chimney damper is best for me? The most important thing is that any of these dampers will seal your chimney tight and stop heat from going out the chimney and the elements from coming down the chimney. These well constructed, superbly engineered dampers eliminate 90% of the winter heat and summer cooling loss that leaks past your current damper. They also eliminate downdrafts and keeps moisture and animals out of your chimney and home. Moisture in your chimney causes unwelcome odors and leads to deterioration of bricks and mortar. The silicone rubber gasket (included) provides solid, tight-sealing protection to the top of the flue. Stop the energy thief...your fireplace damper Traditional fireplace dampers leak. They leak a lot. That costs you big money in lost utility dollars going out your chimney. Lyemance chimney damper provides solid, tight-sealing protection to the top of the flue. Traditional throat dampers only give metal to metal contact - notoriously leaky and expensive. Who can afford heated or cooled air going out their chimney? The lyemance chimney damper is operated by a 35' cable dropped down the chimney with a handle mounted in the firebox (Both Included). Just a tug on the handle will open or tightly close the Lyemance chimney damper. It is also very east to install. The Lyemance chimney damper has a low profile and is great for installing under chimney covers. Lock-Top Chimney Damper makes a super tight seal with its silicone rubber gasket. This tight seal can reduce heat loss by 90 percent over even new traditional throat dampers. The Lock-Top chimney dampers has a stainless steel lid attached to a cast-aluminum frame by an array of stainless spring wires. It is operated by a 30' cable dropped down the chimney with a handle mounted in the firebox (Both Included). Just a tug on the handle will open or tightly close the Lock-Top chimney damper. Lock-Top II chimney damper combines the engergy-saving features of the Lock-Top Damper with a special stainlesss steel Gelco chimney cap. The Lock-top II comes fully assembled. The base mounts to the included sweep's ring which attaches to the flue with silicone sealant which is also included. A 30' stainless steel cable (included) drops down the flue, and a hardware set (included) mounts in the firebox. The Lock-top II has a lifetime warranty and is available in 3/4" and 5/8" mesh.All of these chimney dampers include everthing for an easy installation and operate easily with a tug on the handle to open or tightly close.Free fast shipping and guaranteed price. Any Chimney Damper purchased from ChimneyDirect.com will withstand the elements and will have high quality construction. ChimneyDirect customers always enjoy the added confidence of knowing that our 30-day money back guarantee demonstrates our commitment to complete customer satisfaction. Another advantage of ordering from us is our prompt delivery policy. Most chimney dampers are shipped the same day they're ordered and for free if the order is over $ 100.