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  #1  
Old 07-06-2014, 01:58 AM
Serf
 
Join Date: Jun 2014
Location: West Palm Beach, Florida
Posts: 13
Default Chimney?

Hello all,

After reading all of your wonderful posts and seeing the great builds
I have decided to build my first WFO.

My question is this: I am forced to have a 90 bend in the chimney
to accommodate getting out of my patio ( I cannot go straight up).

Will my chimney work properly with one 90 degree bend in it?

Thanks,

RR
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Old 07-08-2014, 04:00 PM
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Join Date: Jul 2014
Location: New Orleans
Posts: 2
Default Re: Chimney?

I do know from wood stoves that a 90-degree bend will not affect things too much, but if you do that, I would do 2 things:

1. Increase the size of your flue
2. Increase the vertical portion of your chimney.

The first is to increase airflow to accomodate for the roadblock, and the second is to increase airspeed to help the hot air get moving faster to "pull" more air through.

I have never built WFO, but the physics of convection should remain fairly constant.

Phriday
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Old 08-11-2014, 08:26 PM
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Join Date: Sep 2012
Location: Macon Georgia
Posts: 12
Default Re: Chimney?

Hello Rocket2004

I am considering a similar setup. Building in a breezeway and having the chimney go out under the roof rather than straight up and through the roof.
I will probable do 2 45degree bends rather than 1 90 degree. I think that that should flow better.

David
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  #4  
Old 08-11-2014, 09:03 PM
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Les Les is offline
Il Pizzaiolo
 
Join Date: Sep 2005
Location: Carson City, NV
Posts: 2,842
Default Re: Chimney?

Rocket, I believe David is on point. I recall this being discuss way back and the 45 deg approach was the preferred option.
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