Clay flue ?

[dsm]

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?


Thanks,
Dave

[azatty]

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]

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]

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]

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]

Standard square and rectangular flue is cheap, round clay flue is pricey.

[GianniFocaccia]

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

[Tscarborough]

It is about 12 bucks a foot here.

[Gulf]

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

[dsm]

Thanks for your help everybody....