Insulating Wall Thimble

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KullNova

New Member
Nov 9, 2015
1
Amanda
I want to insulate the wall thimble of my wood stove (the void where the double wall pipe goes thru the thimble). Is there a safe and reliable spray foam for this area or another solution for filling the void after all is assembled???
 
I want to insulate the wall thimble of my wood stove (the void where the double wall pipe goes thru the thimble). Is there a safe and reliable spray foam for this area or another solution for filling the void after all is assembled???

I would respect the clearance that the thimble provides to combustibles.

A few threads on this subject if you search, here is one: https://www.hearth.com/talk/threads/possible-to-safely-insulate-space-btwn-chimney-and-shield.73232/
 
I want to insulate the wall thimble of my wood stove (the void where the double wall pipe goes thru the thimble). Is there a safe and reliable spray foam for this area or another solution for filling the void after all is assembled???
No, don't use foam. How large is the gap? Can you post some pictures of the current set up and one showing the gap?
 
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