They usually feature mesh guards to keep critters out of your flue and a leak proof gasket to keep moisture at bay.
Fireplace flue open or closed chain.
Fireplace dampers come in two main types.
Chimney top dampers sit at the top of the chimney with a chain and lever to open and close it.
To open it take the chain off the hook and let it go.
A flue directs smoke outside of a home when a fireplace is in use.
Check up into the chimney from your fireplace.
Throat dampers sit lower in the flue just above the firebox.
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If the chain is tightly attached to a hook the damper is closed.
If the flue is open the smoke will go out of the chimney without any problem.
If the handle is in a downward position the small door atop the flue system should be closed.
If the damper is closed then the smoke will come out of the chimney and fill out the room.
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If it is in an upward position the door should be wide open.
The key to keeping fire out of your home and the toasty air inside is determining whether your chimney flue is currently open or closed.
You know the flue is open if you can see the sky or have a throat dumper.
Carry out a visual check.
If there is a metal chain in or besides your fireplace it means that your chimney has a top mounted damper.
First locate the damper s pull chain.
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