Chimney Terms

Top-Sealing Dampers

A device installed at the top of a chimney for the purpose of sealing the flue shut when the fireplace is not in use. They are often used as replacements for throat dampers that are installed just above the firebox when a masonry chimney is built. Lyemance and Lock-Top top-sealing dampers are as much as 90% more efficient than throat dampers because they provide a silicone rubber gasket seal rather than metal to metal.


Stainless Steel Chimney Liner

Stainless steel pipe, either rigid or flexible, made for relining flues of masonry chimneys when the original clay liner has cracked or broken. May also be used to create a lining in a masonry chimney that was made without a clay liner.


Chimney Caps

Protective coverings for chimneys usually made of aluminum, galvanized or stainless steel, or copper. Most chimney caps have a mesh screening that serves the dual purpose of spark arrestor and barrier against animals. Chimney caps also prevent rain from entering the flue of the chimney.

Skip Navigation LinksHome > Lock-Top Energy-Saving Damper > About Lock-Top Dampers

About Lock-Top Dampers

Keep heat and energy in...rain and animals out
If it's not the cold drafts on your feet, it's the high energy bills in your mailbox.

You've got a fireplace problem you probably don't know about. It's your damper. It leaks. Not a lot mind you, but enough to be costing you over $200 a year in lost energy. Lock-Top Top Sealing Fireplace Damper

The Lock-Top Damper seals tight with a silicone rubber gasket
That's right, our damper seals with a rubber gasket, not metal to metal like your current damper. A Lock-Top Damper seals tight, so virtually no air, and thus no heat or air conditioning gets lost up your chimney.

The Lock-Top also eliminates downdrafts, seals out rain which can deteriorate the inside of your chimney, and prevents entry by pests like squirrels, raccoons, and nesting birds.

The Lock-Top mounts on top of your chimney
On top? Yes, that is the perfect location to create an airtight seal.

A cable drops down your flue and attaches to a handle which mounts where you can reach it for convenient opening and closing.

The Lock-Top Fireplace damper opens and closes easily with this handle mounted in your fireboxSuperior stainless steel and cast-aluminum construction equal a lifetime warranty
The Lock-Top Damper is made of cast-aluminum and stainless steel, precision fitted with our special silicone rubber gasket. These high-quality materials add up to a factory lifetime warranty for you.

Lock-Top Dampers are only available from chimney and hearth professionals
Professionals stake their reputation on what they sell. Lock-Top Dampers are only sold through professionals because it takes a professional for proper sizing and installation.

Say "yes" to savings
Put the Lock-Top Damper to work for you. Save energy, stay warm, protect your chimney from moisture and your home from pests. These benefits will all be yours when you say 'yes'to Lock-Top.
Take A Tour Of Your Chimney
Web Poll
Do you get your chimney cleaned and inspected yearly?