Lock top mounts on top of your chimney to keep out animals leafs bugs snow and rain.
Chimney top damper reviews.
Overall i am happy with the damper and would recommend this to anyone looking for a chimney damper.
The forever cap 16 in w x 12 in l cast aluminum chimney damper.
A top damper works very similar to a throat damper.
These are commonly used in new construction and are the preferred damper of many professionals.
Thanks for a great question.
Item 703429 model lm1216ld.
Reviewed in the united states on april 4 2014.
Pretty easy to install.
The damper closes all the way but due to it s design a very small amount of force can break the seal.
3 0 out of 5 stars does enough for the job.
Usually the default position for these dampers is open which means that if there is a problem with the damper s operation cord the damper will be stuck open.
Lymance 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 seal.
It seems the cable sometimes interferes and only closes 3 4 of the way.
I think top sealing dampers are a great investment and energy savers and as a side benefit they preheat the stem of the chimney from the bottom to the top with warm air often allowing a much better up flow draft of the fireplace smoke.
Only issue with ours is sometimes it closes all the way and sometimes it only closes about 3 4 of the way.
Unlike the top mounted damper which is obviously located on the upper end of the chimney the throat damper is located more towards the fireplace.
The damper is located at the top of the chimney and a chimney cap which prevents rain and critters from entering the chimney is attached.
It still prevents air from entering or exiting the home but the advantage to the top damper is that it seals air off at the top of the chimney which is more energy efficient.
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.
Click this category to view all the chimney damper sizes and styles available.
Top dampers are cheaper and easier to have repaired or replaced if need be as well.
The top sealing chimney damper is designed to stop cold air from coming down the flue and expensive conditioned air from going up.
Burn safe and warm.
