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Round Lyemance Dampers

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Home >   Chimney Caps for Round Flues >   Round Lyemance Dampers > 

Lyemance Round Dampers

Fireplace Dampers:  Lyemance Damper
for Round, Clay Flues with FREE Shipping

Although not a chimney cap, we include here the Lyemance Damper
specially designed for round, clay  flues.

The superbly engineered Lyemance Round Top-Sealing Damper eliminates up to 90% of the air loss of a traditional damper.  Let this easy-to-mount Lyemance damper lower your winter heating and summer air conditioning costs. The Lyemance damper also eliminates down drafts 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 Round Lyemance Top-Sealing Damper works year round to protect your chimney. That's why thousands of Lyemance dampers are sold each year.

Lyemance Damper
for Round Flues

The Lyemance damper, featuring the Power Lever, is easily opened and closed by using a stainless-steel cable that extends down the flue to a bracket fastened on the side of the firebox.  With the Power Lever, a tug on the cable drives a piston upward, applying a whopping 143 pounds of leverage, so the damper always opens easily.

The Lyemance Top Sealing Damper can be installed on chimney tops in minutes, and used with new or existing fireplaces.  The Round Lymance Top Sealing Damper is designed for clay (or masonry) flues on woodburning (not gas) fireplaces.

When the 12" round Lyemance Top-Sealing Damper is completely open, it adds 4 3/4  inches to the height of the flue.

The low profile of the Lyemance EZ Open damper handleLyemance Damper blends into the roof line. Your Lyemance Top-Sealing Damper will arrive completely assembled with a 32 foot cable (longer cables also available, below), a tube of silicone sealant to bond the damper to flue tile, and the coil-style damper handle shown at left.  The Lyemance Damper is durably constructed of cast aluminum and fully guaranteed for material and workmanship.   All hardware and silicone sealant included.  See EZ Open Lyemance Damper Handle, below.

FREE Shipping to continental United States.

Item Number

Size of Lyemance Round Damper

Lyemance Top-Sealing Damper will fit flue up to these sizes. (Inside diameter of flue tile)

with FREE Shipping

Add to Cart


12" Round

10 5/8" to 11 3/8"

with FREE Shipping

Add to Cart

EZ Open Damper Handle

Lyemance EZ Open Damper Handle

Use the Lyemance EZ Open Damper Handle with any size Lyemance Damper to open the damper with ease.  The EZ Open Handle mounts to the wall of the firebox.
FREE Shipping
Item # DLTEZ-W       Price   $86.95        Add to Cart

What if I need a longer cable for my Round Lyemance Top-Sealing Damper?

No problem!  In addition to the 32' cables that come with the Lyemance Dampers or the Lyemance Dampers with Chimney Caps, we offer 40' and 50' cables.

40' Cable (fits all sizes of top-sealing dampers including the round)
FREE Shipping
Item # 12132                    Price $49.95                 Add to Cart

50' Cable (fits all sizes of top-sealing dampers including the round)
FREE Shipping
Item # 12150                    Price $88.95                   Add to Cart






Read more about Dampers in the
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Improve Your Home's Energy Efficiency with a Fireplace Damper
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