Author Topic: Stove pipe 'chimney'???  (Read 1344 times)

hoping2retire35

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Stove pipe 'chimney'???
« on: November 28, 2017, 11:27:29 AM »
So I really want to remodel our garage. I would like to remove the thin metal door with glued on Styrofoam and replace with a real wall/french doors. Pretty sure I could build all that this weekend; maybe without legally needing a permit. However, I also want a wood burning stove, ergo, 'chimney.'

I am not too familiar with the International building code but from my internet searches, the information is pretty sparse. I have three areas of concern

1. what type of insulation should/can I use around the pipe that will be between it and the matching facade/exterior wall?

2. how far past the exterior wall and above eve does this need to project?

3. how far above the eve/lower roof line(depending on location gutters) does the pipe need to extend?

All advice and pictures welcomed.

hoosier

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Re: Stove pipe 'chimney'???
« Reply #1 on: November 29, 2017, 10:42:35 AM »
So I really want to remodel our garage. I would like to remove the thin metal door with glued on Styrofoam and replace with a real wall/french doors. Pretty sure I could build all that this weekend; maybe without legally needing a permit. However, I also want a wood burning stove, ergo, 'chimney.'

I am not too familiar with the International building code but from my internet searches, the information is pretty sparse. I have three areas of concern

1. what type of insulation should/can I use around the pipe that will be between it and the matching facade/exterior wall?

2. how far past the exterior wall and above eve does this need to project?

3. how far above the eve/lower roof line(depending on location gutters) does the pipe need to extend?

All advice and pictures welcomed.

1.  Check manufacturer's specs, but generally speaking an uninsulated flue needs 14" clearance to any combustibles.  Insulated pipe can get you down to 2".  They type of insulation doesn't really matter as long as you are within spec on your clearances.

2.  See #1 on how far past wall.  The chimney should be 3' above anything within 3' of it (usually 3' about the roof on a 4/12 pitch, more if you have a steeper pitched roof).

3.  See #2.


kapnfriday

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Re: Stove pipe 'chimney'???
« Reply #2 on: November 30, 2017, 01:49:52 PM »
You might check out the Jotul stoves website where you can download stove manuals with lots of information on stove and chimney clearance requirements:

http://jotul.com/us/products/wood-stoves/jotul-f-400-castine#technical-area

You should also check out woodheat.org if you haven't already. 

Dancin'Dog

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Re: Stove pipe 'chimney'???
« Reply #3 on: December 20, 2017, 09:20:40 PM »
You're supposed to use insulated pipe on the exterior.  It's double wall and made of stainless steel, so it's expensive.

I spent more on the chimney pipe & parts than my wood stove cost, but it was a two story & I found the stove on ebay for 1/2 price.

I considered using single wall pipe, building a wood framed enclosure & packing it with a fireproof insulation, like Rockwool or vermiculite, but chose the $800 SS pipe in the end.  I really think the cheaper solution would have been fine, but chickened out. 

Oh, you're supposed to run the pipe closer to the exterior wall, and up through the eve instead of out past the edge of the roof. 

I don't have the parts info here, or I'd include the brand name.  Google will find it for you.

 

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