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Country Discussion Topics
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Stove and stove pipe size
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B Mishko    Posted 02-10-2003 at 18:21:04       [Reply]  [Send Email]
I have a barrel stove installed that I intend to replace with an air tight stove.

The air tight that I have on hand has a 8 inch outlet opening for stove pipe while my previous installation was 6 inch metalbestos insullated.

Where can I learn what the impplications of the change of size will be.

I gather that height, inside or outside the house and other things have an impact.

I'd like to find a little simulator program that will let me plug in height, diameter etc to get outcomes but I'd be happy with expainations of the effects of each factor of concern.

Lazy Al    Posted 02-11-2003 at 09:01:14       [Reply]  [No Email]
Let me comment farther on that very good article on chimneys . The atmospheric pressure is X the out side of the house , X psi inside , X psi out side your body X psi inside the same . When you have a chimney that is not above your peak or 10 foot or so horizontally from the roof it will work but when the wind blows things change . If the wind is blowing from that side of the house or what ever . The psi increases there and if you have your chimney in that area The wind don't blow down the chimney as much as your
house sucks it down along with smoke and smell and what ever . Ideal would be have
your stove draw it's air from out side and vent it back out . without messing with the air in your house . That's what I think with all the normal disclaimers .

Salmoneye    Posted 02-11-2003 at 02:11:08       [Reply]  [Send Email]

There is no problem going down in size...You have troubles when stepping up in size say from 6 inch it 8 inch...I found this...

"Chimney Diameter- Chimney diameter also has an effect on the draft of your chimney. In this case, however, having a chimney that is too wide (as compared to the outlet on the stove) can be a problem since it allows the smoke to cool excessively, thereby slowing it down. If possible, the chimney diameter should be similar to the diameter of the flue outlet on the stove. In no case should it be more than 3 or 4 times the cross-sectional area of the stove outlet. If your chimney is oversized, you may consider relining it with a smaller diameter flue."

Lots more chimney info out there...Below is a small sample...

Red Dave    Posted 02-11-2003 at 05:58:52       [Reply]  [No Email]
I looked through that site and there's a lot of good info there. Thanks!

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