The ultimate replacement for warped, worn out, or defective factory-built fireplace dampers, and for use in most pre-fab, class A, round terra cotta and stainless steel chimneys. The drop-in liner damper is easy to open and close from inside the firebox. Made of heavy stainless steel construction.
- Replaces missing, rusted or broken dampers
- Installs approx. 6″ below top allowing existing cap to be reused
- Prevents heat and air conditioning loss
- Does not induce additional resistance or turbulence and is not affected by wind
- The drop-in liner dampers can be used on:
- Class “A” solid pack
- Pre-fab fireplace
- Single-wall round
- Flexible flue liners
- Air-insulated and any pipe type chimney in size 6-16 inch round diameter.
Installation is simple, and damper is recessed approximately 6 inches below and inside the top of flue — ideal for restoration projects where an exposed damper is unwanted. The existing or new rain cover can be installed without fear of a freezing or sticking damper.
The top-mounted, drop-in liner damper is all 316-L stainless steel construction and will withstand repeated fires with no problems. It offers a spring-loaded damper that allows unlimited adjustment to open position of the damper.
Installation of drop-in liner dampers is usually about $55.00-75.00 (Raleigh, NC area only). Call Chimney Keepers at 919-772-8110 for more info.
Each damper kit comes with a 32-ft. stainless steel cable, stop spring, bracket, anchors, masonry drill bit, and cable attachment with chain handle.
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$10.95 shipping on drop-in liner dampers in the U.S.! Extra shipping cost to Alaska and Hawaii of $6.95.
Other sizes are available. For more information, email carl(at)chimneykeepers.com with the size you need and your zip code.
**For proper fit, measure the inside of the flue and get a damper that matches that number. The actual damper is smaller by 1/4- 1/2″ so it slides inside the flue.
If you have a 13″ or 15″ flue, adapters are available (special order – nonrefundable). Example: Your flue is 15″. You can order a 14″ damper with an adapter that will allow it to fit inside the 15″ liner. It’s not perfect but will work most of the time. Adapters are $125.00 each. They can be made up to 20″ in diameter.
You can install one yourself with simple hand tools and an electric or battery-operated drill. Complete instructions are in every box.
Note: These dampers are specifically designed for woodburning fireplace flues and should not be used on fireplaces with gas logs. For regular rectangle or square dampers for masonry chimneys check out our LockTop Dampers.