[TheForge] flues

[GRAF]

For 12 inch the MINIMUM I'd use is 24 gauge. Heavier if you can manage 
it. Above 8 inch the size of the pipe makes it unstable dimensionally in 
the lighter gauges. When you are up in the wind having things collapse 
above a brace because it didn't stay round would not be a good thing.
Mike Graf


john ortery wrote:
> It sounds like you also need to be thoughtfull of the buildings next
> to you, top of the flue should be above highest roof line. of course
> most of us don't have anybody that close as to block air flow, but we
> do need to worry about clearing our own roof line. The inspector here
> is talking about 12 inch flue which will be harder to find.        any
> thoughts on what gauge for the flue pipe?
>           Allen Ortery
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