Zero clearance wall thimble for single wall stove pipe

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acp104

Member
Jan 14, 2016
47
NW Illinois
Hi all,
I would like to vent a wood stove with 6" outlet through an exterior shed wall (wood) into an existing masonry chimney with 7" square clay flue. There used to a be a wood stove in the building with a single wall stove pipe routed through the wall into the chimney so there is already a 6" hole. There is no clay or metal stub/sleeve passing through the wall/chimney at this time. I know my install must include proper clearance to combustibles so I will need to create a much larger hole in the wooden wall. Since my chimney is only 16" wide, I need to keep my hole through the siding under 16". My question is, can single wall stove pipe be run through an insulated wall thimble directly into the chimney? Such a setup would be ideal for me because it would allow minimal rework of the existing 6" hole through the masonry, and low cost. If not, I guess I'll have to go with something like this http://www.menards.com/main/heating...53722638-c-19451.htm?tid=-7382031871516326279
 
yes most companies make one.
 
I will look for one quick we dont shop from online retailers so i dont have one off hand
 
Just search for "insulated thimbles for masonry chimneys" there are lots of results
 
The Selkirk thimble should work and is probably the least expensive. This article covers options:
https://www.hearth.com/talk/threads/chimney-passing-a-chimney-through-the-wall.147754/

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I just got done installing one in one of our camp buildings. It was simple and turned out good.
 
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