Simplest Chimney Installation

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richas

New Member
Nov 27, 2024
10
usa
Hello,
We have this wood stove:

[Hearth.com] Simplest Chimney Installation


That we are going to install in a small bunkhouse at a remote property. The bunk house is 10x20' and bare studs inside. The ceiling is also bare rafters and exposed plywood sheeting under the roof.

The stove will go in a corner and I understand how to build a fire proof platform and instal metal on the walls with air gap.

What is less clear is how to build the chimney. I see chimney kits that include a large black metal box but they are very expensive and I am trying to find a cheaper option. This is a rustic place and so I don't need a "clean" look.

I am thinking of using this as a starting point:

[Hearth.com] Simplest Chimney Installation


Then the adapter to stove pipe below. Additional insulated section above with cap. Bracing added to roof. And flashing at roof.

Flashing: I will have to measure my roof slope but are there any "universal/adjustable" ones?

The stove may not sit right between two roof rafters so I may have to add two 45 degree bends to get the right offset, is this ok?

I appreciate the help.

R
 
Yes, chimney pipe is expensive. That system can work. Flashings generally come in rough pitch ranges, (flat, 2/12 to 6/12, 6/12, etc.), depending on the brand. Make sure the chosen flashing's range fits the cabin roof pitch.

It's ok to have an offset in the stove pipe that connects the stove to the chimney pipe.

Be sure to honor the 10-3-2 rule for the chimney pipe relation to the roof. A brace is needed if the chimney extends 5 ft or more above the roof.

[Hearth.com] Simplest Chimney Installation
 
Yes, chimney pipe is expensive. That system can work. Flashings generally come in rough pitch ranges, (flat, 2/12 to 6/12, 6/12, etc.), depending on the brand. Make sure the chosen flashing's range fits the cabin roof pitch.

It's ok to have an offset in the stove pipe that connects the stove to the chimney pipe.

Be sure to honor the 10-3-2 rule for the chimney pipe relation to the roof. A brace is needed if the chimney extends 5 ft or more above the roof.

View attachment 332549
Thank you so much for this help.
That "Selkirk Metalbestos 6T-RSP Stainless Steel Roof Support" mounts right to the roof sheeting. Is it ok to have that stovepipe so close to the sheeting? I can't seem to find the specs for that thing.

edit:
Looks like it doesn't mount to the sheeting and I found the install instructions and am trying to understand how to install...

The bunkhouse is only 10' wide so I definitely can't keep 10' from roofline so I will install according to the right side of your picture.

R
 
The chimney pipe will hang down below the roof with that assembly. Clearances to the chimney pipe will be 2" to any combustible. The stove pipe that connects to it will have 18" for single wall or 6" for double wall stove pipe.
[Hearth.com] Simplest Chimney Installation


Selkirk also makes a universal support, part URSA, that you could use with a longer length of class A chimney pipe to get it to extend further into the room to make clearances if necessary.

[Hearth.com] Simplest Chimney Installation
 
Perfect, thank you for the help, I think I have a pretty clear idea now. I emailed the manufacturer and they said that it can be mounted right to the sheeting. I imagine I’d probably put a couple two by fours between the rafters to give it something solid to screw into.

Thanks again for the help

Rich.
 
Perfect, thank you for the help, I think I have a pretty clear idea now. I emailed the manufacturer and they said that it can be mounted right to the sheeting. I imagine I’d probably put a couple two by fours between the rafters to give it something solid to screw into.

Thanks again for the help

Rich.
Just remember clearances below the roof inside of the cabin too.
 
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