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Dampers

Premier Damper Cap
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Premier Damper Cap

National Chimney's Premier Damper Cap is made of 304 stainless steel with a Lifetime Guarantee. All Premier Damper Caps have a removable lid for easy access for cleaning. The lid is 15% larger, giving more protection from the elements limiting ice and snow build-up even in the harshest weather. It has an insulated lid with 1/2" thick insulation sandwiched between 2 pieces of 24ga 304 sheet steel to provide extra protection from condensation. Premier Damper Caps are made standard with 3/4" expanded mesh screen and are also offered in 5/8" California Mesh. Comes with a 50' cable, handle, and silicone.
Flat Base Premier Damper Cap
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Flat Base Premier Damper Cap

This Flat Style Damper is designed to be mortared into the crown or fit directly onto an existing top plate. The base plate is made from 18ga 304 stainless steel, and the plate extends 2' past the screen for ease of installation.
Drop-In Dampers
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Drop-In Dampers
  • 304 Stainless Steel
  • Lifetime Warranty
  • 50' cable included
  • Use on round, square or rectangle flue tiles, flexible or rigid stainless liner, factory built chimney, or solid pack chimney liner
  • Recessed 6"
  • Ideal for installations where a standard top mounting damper is not suitable
  • Can be used with our Rain Caps, Top Kits or Premier Tops Do not use on chimneys venting gas logs.
Top Damper
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Top Damper

The Top Damper seals out rain, snow and sleet while sealing in "paid" heat and air-conditioning. In its closed position it is virtually invisible from the ground. The stainless steel and aluminum design ensures that it won't rust or stain your chimney. But the most exciting benefit of The Top Damper is that it doesn't require a chimney fire safety device. In addition, we have taken some weight out of the lid allowing this damper to open higher than the competitions'. Installation is easy! Just use the adhesive to attach the damper at the top, then simply drill two holes and use the nail anchors to mount the bracket in the firebox. The mounting hardware consists of adhesive, 30' stainless steel cable, fireplace bracket, anchors, spring handle, lid-release pull and even an allen wrench. You may use the Energy Top Adapter Ring, if desired. Just drill attachment holes in the damper frame for mounting. The RS Adapter may be used to adapt The Top Damper to a round liner or solid-pack Class-A pipe. Extra hardware packs are also available. The Top Damper carries a Limited Lifetime Warranty and has a patent pending.
Top Damper+
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Top Damper+

The Top Damper + comes with a premium quality stainless steel cap to provide spark protection and defend against animal/debris. Its special design seals out rain, snow, and sleet while sealing inside heat during the winter and A/C during the summer. Installation is quick. The damper frame secures to the top of the chimney with a high-temperature adhesive. Included are installation instructions, high-temperature adhesive, a 30' cable, firebox mounting bracket, handle, and hardware. The Top Damper + carries a Lifetime Warranty.
Energy Top Damper
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Energy Top Damper

The Energy Top Damper is a low-profile top mounted damper that also serves as a chimney cap. In the closed position, it is virtually invisible from the ground. It provides a tight, gasketed fit that seals heat. The Energy Top Damper seals out weather, insects, birds and animals. A slight pull on the chain releases the spring-loaded top into the open position. When open, this damper design is least obstructive to exiting smoke. Damper includes a Lifetime Warranty, 30' cut-to-fit cable, fireplace bracket, cool touch spring handle, mounting adhesive and hardware.
Do not use on chimneys venting gas logs.
Energy Top + Damper
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Energy Top + Damper

The Energy Top + is about 90 percent more efficient than traditional dampers. Install at the top of the chimney and completely seal the flue shut with a flexible silicone rubber gasket when the fireplace is not in use. Energy Top+ Dampers prevent heat from escaping up the chimney and chilly drafts from entering the home. The Energy Top+ not only is a top sealing damper, but it also serves as a chimney cap/spark arrestor.
Sealtight Damper
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Sealtight Damper

This is a great option for homeowners who don't want a cap visible on their chimney. The Sealtight Damper attaches to the top of the flue. It provides a tight gasketed fit to seal out weather, insects, birds and other animals while keeping heat in. (This damper can also be installed beneath a HY-C chimney cap.) Each damper kit includes a Lifetime Warranty, 30' cut-to-fit cable, fireplace bracket, cool-touch spring handle, mounting adhesive and hardware. Do not use on chimneys venting gas logs.
Benard Daslsin MFG Chim-a-lator Deluxe Fireplace Damper
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Benard Daslsin MFG Chim-a-lator Deluxe Fireplace Damper

The six-position lever handle not only makes this damper one of the easiest to use top mounted dampers on the market today, but allows you to control the amount of draft. (Includes a 30' cable and 7' cable shield.)
Lock-Top Damper (LT)
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Lock-Top Damper (LT)

Lock-Top damper seals out pests and weather problems. It is a low cost solution to replace throat dampers to help prevent heat and air conditioning loss from your customer's home. Damper includes 30' cable, adhesive, mounting hardware and Lifetime Warranty. Note: Do NOT use Lock-Top dampers with gas logs.
Lock-Top II Damper
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Lock-Top II Damper

The Lock-Top damper has a specially designed chimney cap. It comes fully assembled and ready to install directly to the flue tile. (Includes a Lifetime Warranty, 30' stainless steel cable, adhesive, and mounting hardware.) Note: Do NOT use Lock-Top dampers with gas logs.
Lyemance Original Top Sealing Damper (LYO)
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Lyemance Original Top Sealing Damper (LYO)

This swing door damper is made of cast aluminum. It comes with a 32' stainless steel cable. The cable is connected to the spring-loaded Power Lever Damper.
Note: Do NOT use Lock-Top dampers with gas logs.
  • Easily mounts atop flue tile
  • Lifetime warranty
  • Silicone rubber seals tight

Accessories

Premier Installation Pack
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Premier Installation Pack

NOTE: Hardware pack includes 50' cable.
Installation Pack
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Installation Pack

Contains: Chain/handle assembly, bracket with nail anchors, allen wrench, 30' stainless steel cable and silicone.
NOTE: Hardware pack includes everything you see except the 30' cable.
Damper Adapter Plate
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Damper Adapter Plate

This adapter is used for the Insulated Premier Damper Cap (shown above) to allow for installation on a flat surface.
RS Adapters for Lock-Top
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RS Adapters for Lock-Top

RS Adapters let you mount the Lock-top damper to round flue tiles, stainless steel liner, or a solid-pack Class-A chimney.
Easy Grip Handle
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Easy Grip Handle

If your customer is experiencing difficulty opening their top end damper, suggest an Easy Grip Handle.
Lyemance/Locktop Hardware Kits & Cable Packs
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Lyemance/Locktop Hardware Kits & Cable Packs

Hardware kits include cotter pin, handle and chain, bracket assembly and two anchors. The installation cable packs include the hardware kit items plus 3 oz. tube of clear silicone, 30' cable and cable spring. (LTICP also includes a black jam nut and black tube safety device.)
Lyemance Cap for Dampers
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Lyemance Cap for Dampers

Add a Lyemance cap designed to fit over Lyemance dampers, made of 304 Stainless Steel. Available in the following sizes (special orders available, call for a quote).