Venting sauna stove to chimney

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UpInMaine

Member
Dec 18, 2016
3
Maine
Howdy,

I have acquired a property with a nice sauna building. In it is a brand new small Northwoods Stove (https://www.northwoodsfab.com/product-page/sauna-wood-stove) that is not hooked up. There must have been some other stove at some point hooked up as the sauna was built in about 1985. There are some random new stove pipes in the building and it looks like the previous owner was going to hook it up and gave up. There is a 6" double wall chimney coming out of the roof.

It is kind of a complicated setup so I made a quick video to show what the challenge is. Can I just use 4" flexible chimney pipe to get up to that chimney? I know I would need an insulated thimble to go through the wall. Or should I just use single wall pipe and elbows up to chimney? Where should I go from 4" to 6" - right at the chimney or right from stove collar?

Any ideas on how I might hook this up? Not sure why chimney does not go straight up through the roof from the stove but this is what I've got to work with.

Thanks for any suggestions - I have learned much from here about my Jotul stoves in the main house but really am vexed as what to order/buy and how to safely hook it up.

thanks,

Will, Maine USA

Here is video on Youtube ->
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I will attach it here as well...
 

Attachments

  • 20241212 113428rx.mp4
    11 MB
There is nothing legal or safe about passing through the wall with stove pipe, regardless of construction. It is as if the sauna benches are in the completely wrong location. The only way to safely connect the stove to the existing chimney outlet is with insulated chimney pipe and an shielded wall pass through. Once it is on the stove side of the wall it can be converted to stove pipe.

Given how wonky this setup is, maybe consider removing the wall entirely? The other thing that could be wrong may be the clearances for the wood stove. Tile on a wood stud wall does not reduce the clearance requirement at all.
 
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Can you post a simple sketch of the floorplan including the chimeny location and the wall + current stove location?