> If I do indeed go ahead and get the metal
>
> tube, I think I am going to send it off to Jet Hot or some other ceramic
>
> coating company, to attempt to create the 'warmth' resistant properties
the
>
> plastic sewer pipe has. I think I was told it would only cost $30 max to
>
> have the metal pipe coated inside and out.
Don't do the inside - you want laminar air flow inside the tube, the coating
will
cause turbulence (not a good thing as a general rule).
-- JB
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