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Wanting to add a piece of pipe

Posted By: HobbieTrapper

Wanting to add a piece of pipe - 01/23/24 11:13 AM

To the stove pipe at the cabin. Would like to get it above the peak line. Is there any danger in this?
Posted By: Tom Riley

Re: Wanting to add a piece of pipe - 01/23/24 11:20 AM

It should terminate at least 10 feet from the roof level line or above the ridge line.
Posted By: HobbieTrapper

Re: Wanting to add a piece of pipe - 01/23/24 11:26 AM

Not quite there yet. I believe the original builder was trying to be incognito. Currently the prevailing wind comes over the ridge line and carries the smoke down into the woods.
Posted By: Tom Riley

Re: Wanting to add a piece of pipe - 01/23/24 11:27 AM

Above the ridge would be fine.
Posted By: cotton

Re: Wanting to add a piece of pipe - 01/23/24 11:30 AM

code says 2 foot taller than 10 feet away
Posted By: HobbieTrapper

Re: Wanting to add a piece of pipe - 01/23/24 11:32 AM

Great, hoping to improve the draw a little with the extension. Should do it?
Posted By: Tom cat

Re: Wanting to add a piece of pipe - 01/23/24 11:43 AM

Yup Hobbie taller pipe will give you more draw.
Posted By: Lugnut

Re: Wanting to add a piece of pipe - 01/23/24 12:30 PM

Originally Posted by cotton
code says 2 foot taller than 10 feet away


X 2

It's the 3-2-10 rule.

The chimney's shortest side needs to be at least 3 feet above the roof penetration and its top has to be 2 feet higher than any part of the building that's within 10 feet.
Posted By: HobbieTrapper

Re: Wanting to add a piece of pipe - 01/23/24 12:42 PM

It’s to code but the code is so you don’t burn the place down, not maximizing draw.
Posted By: gcs

Re: Wanting to add a piece of pipe - 01/23/24 12:49 PM

screw the sections together and you might need a brace to support the stack
Posted By: Lugnut

Re: Wanting to add a piece of pipe - 01/23/24 02:54 PM

Originally Posted by HobbieTrapper
It’s to code but the code is so you don’t burn the place down, not maximizing draw.


The code is for safety AND for maximizing draft. A chimney below a nearby roofline can downdraft because of the way the roof effects air currents.

The 3 part of the 3-2-10 rule is about safety. The 2-10 part is 100% about not impeding draft.
Posted By: HobbieTrapper

Re: Wanting to add a piece of pipe - 01/23/24 04:03 PM

It ain’t working where I’m at.
Posted By: GREENCOUNTYPETE

Re: Wanting to add a piece of pipe - 01/23/24 04:30 PM

the cap should pop off then the connection be the same to just a a peice to the top as long as you can find the same type of pipe.

then you will need to support it with strap and some struts
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