While most dampers are located in the throat of
the fireplace, there are dampers that mount at the
top of the chimney.
These dampers are designed to make your
fireplace more energy efficient by sealing sealing the flue
at the top rather than at the bottom. Sealing at the top keeps the cold
air out and your warm air in and causes an automatic updraft in the flue
when opened, (you will not have to warm the flue first).
Top mounted dampers are operated
by a control mounted in the firebox and connected
to the chimney top damper by a cable or chain.
Chimney top dampers are often an economical
alternative to replacing a rusted out or warped throat damper.
Top mounted dampers will also keep rain and
animals out of your chimney when in the closed
position.
All of the following dampers have a lifetime warranty.
Lyemance Top Sealing Dampers
This is the original Top Sealing damper. It operates in the same manner as the two below with stainless steel cable and spring. This damper also has the Power Lever which applies a whopping 143 pounds of pressure so the damper always opens easily. The cable is 32 feet long.
There is an orange silicone rubber seal that completely seals this damper when closed. It also has interlocking lips when it is closed and has a slope for water run off.
I have installed many of these dampers since 1980 and all customers were quite satisfied by their performance and durability.
All hardware, instructions, and silicone sealant are included. Lifetime Warranty
Lyemance Top Sealing Dampers
Model
Price
Fits Inside Flue Sizes
Minimum
Maximum
8" X 8"
$159.95
6 1/2" X 6 1/2"
8 1/2" X 8 1/2"
9" X 13"
$164.95
6 1/2" X 10"
8 1/2" X 12 1/2"
13" X 13"
$169.95
10" X 10"
12 1/2" X 12 1/2"
8" X 17"
$169.95
5 3/4" X 14 1/4"
8 1/4" X 16 1/2"
13" X 18"
$186.95
10" X 15 1/2"
12 1/2" X 17 1/2"
17" X 17"
$209.95
15" X 15"
17 1/2" X 17 1/2"
12" round
$164.95
10 5/8"
11 3/8"
EZ Open Damper Handle
Now you can open Lock-Top or Lyemance dampens with even more ease.
This handle mounts to the wall of the firebox. A lightweight extension slips
over the handle and the damper opens with minimal effort. Low priced.
Hardware included.
#09350 EZ Open Damper Handle
Locktop Dampers
Slam the door on soaring energy costs! The Lock-Top Damper makes a super tight seal with it's silicone rubber gasket. This tight seal can reduce heat loss by 90% over even new traditional throat dampers.
Traditional throat dampers have a metal- to-metal seal. They're leaky even when new and only get worse as they rust and warp with age.
The Lock-Top has a stainless steel lid attached to a cast-aluminum frame by an array of stainless spring wires. It is operated by a 30' cable dropped down the chimney with a handle mounted in the firebox. Just a tug on the handle will open or tightly close the Lock-Top. It comes with a Chimney Fire Safety Device that locks the damper open in case of a chimney fire.
It also carries a Lifetime Warranty.