Wood burning stove and masonry

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.

Jon Broome

New Member
Sep 18, 2022
3
Georgia
I'm trying to install a wood stove into a kitchen/ get together building of mine. Please forgive my ignorance as I am from the south and we don't have to burn much wood. The walls are cinder block and the stove I have is 8" pipe. My question is do I need a thimble going through block like that? I've been trying to find one online and they all say only work with dura tech pipe and so on. The pipe I have I got from lowes a while back and I don't see a maker's mark any where. Is there more of a universal thimble? Thanks for any and all answers
 

begreen

Mooderator
Staff member
Nov 18, 2005
96,422
South Puget Sound, WA
If the wall is only cement block then you can take a Class A stub extension off the snout of the tee and run it through the wall. No thimble needed. This assumes that there is no drywall or studs involved. If so, the chimney pipe clearances need to be honored.
 

stoveliker

Minister of Fire
Nov 17, 2019
6,285
Long Island NY
Is it stove pipe or chimney pipe?
 

Jon Broome

New Member
Sep 18, 2022
3
Georgia
Is it stove pipe or chimney pipe?
It's the 8 inch wood burning stove pipe. Comes in a sheet and locks together when rolled over
If the wall is only cement block then you can take a Class A stub extension off the snout of the tee and run it through the wall. No thimble needed. This assumes that there is no drywall or studs involved. If so, the chimney pipe clearances need to be honored.
 

stoveliker

Minister of Fire
Nov 17, 2019
6,285
Long Island NY
Stove pipe is not meant to go thru a wall (and most stoves use 6" pipe). Hence my question.
 

begreen

Mooderator
Staff member
Nov 18, 2005
96,422
South Puget Sound, WA
Forgive my ignorance but I looked up a class A tee online and I don't see a stub exstension. Could you be more specific
The "stub" would be a short 12 or 18" length of class A chimney pipe attached to the nose of the tee so that it passes through the cement block wall and into the interior room space. Only chimney pipe can pass through the wall. The 8" stove pipe is only for use in the room itself to connect the chimney pipe to the stove's flue outlet.