Shipping Included on Lyemance dampers. (Lower 48 states only. Ships UPS ground)

Lyemance Lock Top II Chimney Damper & Cap combo The Lock-Top II gives you the added protection of a stainless steel chimney cap surrounding your damper. The damper seals cold and hot air out, and the cap provides extra rain, animal, and spark protection. Fits 6 common flue sizes Easy Installation Lifetime Warranty 3/4" Spark arrestor mesh standard Call for 5/8" Spark arrestor mesh option

Sizing for a Lock Top II damper Masonry, brick or clay liners need to be measured by its INSIDE measurement. Older "clay" liners and newer ceramic liners will vary in their inner and outer measurements. Typically... a standard size 8x12 clay liner, sometimes called a 9x13, will have an inner measurement of approximately 6 x 10 to as big as 7 x 11 1/2". Measure and give us a call if you would like help sizing for a Lock Top II damper.

	Made to fit clay or terracotta flues Always measure the inside & outside of the flue tile side to side, never corner to corner.
Fits square or rectangular flues with "rounded" corners		May not work on oval flue liners

Lock Top Video and Installation

Lyemance Lock Top Video

ADD a Cable Shield for $20** or Lyemance LockTop 50' Cable for only $22**

COMBO SPECIAL pricing valid ONLY on purchases of a Cable Shield or Cable AND Lyemance Damper

Lifetime warranty Replaces leaky throat dampers The Lyemance Lock Top chimney 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 II Damper seals tight with a silicone rubber gasket
Damper seals with a rubber gasket, not metal to metal like your current damper. A Lock-Top II Damper seals tight, so virtually no air, and thus no heat or air conditioning gets lost up your chimney.

The Lock Top II 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 II 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.

Superior stainless steel and cast-aluminum construction equal a lifetime warranty
The Lock-Top Ii 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.