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dsm 06-08-2012 07:43 PM

Clay flue ?
Hello again, i was going to use 8" duratech flue on my 39" wfo well now 391/2 wfo it magically it grew during construction but now might be changing my mind and using clay flue what size would be appropriate, would it be a 8x8 flue?


azatty 06-08-2012 07:50 PM

Re: Clay flue ?
Get 10x10 flue, minimum, for that sized oven, unless you want a really tall chimney. Clay flue goes by outside diameter, not inside, so to get an eight inch cross-section you'll need an OD of 10 inches.

dsm 06-08-2012 07:53 PM

Re: Clay flue ?
Im only gonna go 2 feet high with the flue if that is ok dont really know correct me if i am wrong, i am planning of having a flat roof so a 10x10 would be good your saying?

Tscarborough 06-08-2012 09:23 PM

Re: Clay flue ?
It goes from 8x8 to 13x13 (OD) in clay flues. You can try and find round clay (it is measured ID, FYI), but it is almost as pricey as metal. I do not know what size you need, whatever is recommended by the FB plans, I guess.

dsm 06-09-2012 05:55 AM

Re: Clay flue ?
I didnt know it was that it was almost the same price as metal i was going to use clay to cut back a little on cost .

Tscarborough 06-09-2012 07:15 AM

Re: Clay flue ?
Standard square and rectangular flue is cheap, round clay flue is pricey.

GianniFocaccia 06-09-2012 10:09 AM

Re: Clay flue ?
In California, a 13" square clay flue tile is around $25 per 1' section.

Tscarborough 06-09-2012 10:31 AM

Re: Clay flue ?
It is about 12 bucks a foot here.

Gulf 06-09-2012 10:40 AM

Re: Clay flue ?
25 bucks is about what it cost me for the fire brick per foot for an 8" id section of my flue.

dsm 06-09-2012 12:35 PM

Re: Clay flue ?
Thanks for your help everybody....

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