Chimney height ?

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double E

double E

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I am getting ready to install a Englander wood furnace, it will be a thru the wall install with triple wall stainless pipe. My chimney will be about 36', and I was wandering if there are any problems I may run into with a chimney that tall.
 
jhoff310

jhoff310

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one big problem will be creating a draft. My Chimney is 32' tall installed inside and it takes me a few minutes to get a good draft going. I looked at going thru the wall and decided it would be better to install inside. The pipe will be cooler on the outside as opposed to the inside. Cooler pipe=harder to get a good draft.

If you have to go thru the wall I would build a hot quick fire with a few wads of paper and cardboard to heat up your chimney aiding in a draft.

Someone please correct me if I am wrong

Jeff
 
laynes69

laynes69

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We have a 32' chimney with a insulated 5.5" liner and enough draft isn't an issue. Where problems will be is you will have a bad overdraft. Most companies test with a chimney around 14 or 15 feet tall. You will be more than double that. Contact the company and see what they recommend. Either you would benefit from a key damper in the flue, or a Barometric Damper if they recommend one. We use a baro, but here lately I have also experimented with a key damper. Im sure the company will suggest a key damper. With a chimney that tall, a baro may let too much air into the chimney causing rapid creosote buildup. Burning good dry wood and hotter fires will help eliminate creosote.
 

pook

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tall chimni= great draft....need a barodamper to regulate the draft because excessive draft can overfire the furnace which under the right scenario can result in a chimnifire......long story
best way to avoid chimnifire is to know the system & clean it when needed, regardless of what the stove & chimni are
 
double E

double E

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Thanks for all the great info. I am researching the 2 dampers now, I have tried calling Englander but with no luck getting a hold of anyone, will try again tomorrow.
I also have one more ? I am thinking about using double wall black pipe inside, but with a 36' chimney I am not sure if it would help me or hurt me any opinions on double wall vs. single wall black pipe.
 

pook

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Nov 12, 2010
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maine
Thanks for all the great info. I am researching the 2 dampers now, I have tried calling Englander but with no luck getting a hold of anyone, will try again tomorrow.
I also have one more ? I am thinking about using double wall black pipe inside, but with a 36' chimney I am not sure if it would help me or hurt me any opinions on double wall vs. single wall black pipe.
no 2wall! its gonna make for more draft & overfiring/warp of stove......u got a TALL chimni!
 
stint

stint

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36 feet of double wall pipe is gonna require quite a bunch of $$$$

Would have to do more research to see if that expense would ever be cost effective

Are you considering the sealed or the vented double wall ??
 
kstill361

kstill361

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I have a key damper after the Baro. I did this just incase there was a chimney fire I can close it , but I clean once a month so I hope I should never have to use it for this purpose.
 
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