Would a seal tight Chimney top Damper Stop could air infiltration when fireplace not in use?

[Bucksandreds]

When fireplace is not on im getting cold air penetration through my wood burner into the house. Would this potentially stop this penetration?

Thanks

 

[webby3650]

Yes. It actually has a silicone gasket that makes an airtight seal at the top. They are worth every penny.

 

[branchburner]

Yes. It actually has a silicone gasket that makes an airtight seal at the top. They are worth every penny.

The OP has an insert, I believe... aren't these are made for standard fireplace flues (clay liners)? Never heard of it being used with a stainless liner and stove/insert.

 

[SudsJeff]

When fireplace is not on im getting cold air penetration through my wood burner into the house. Would this potentially stop this penetration?

Thanks

My wood stove is in the basement and I have some serious downdraft (down the 6x6 clay liner), which leads to cold stinky air entering the room from my secondary air inlets on my EPA stove. I have researched these lock top chimney cap dampers. They are opened and closed with a chain that runs down the flue. Not sure how this would work running down into a air tight or EPA stove/insert. Plus if you have any bends in your stove pipe that might complicate things further.

 

[CenterTree]

I get Deja vu.

https://www.hearth.com/talk/threads...aft-problem-when-fireplace-not-in-use.157426/

 

[webby3650]

The OP has an insert, I believe... aren't these are made for standard fireplace flues (clay liners)? Never heard of it being used with a stainless liner and stove/insert.

I did not realize that.

Lock top dampers won't work on an insert, they are for open fireplaces. They make them for liner applications, but it's still for an open fireplace.