[TheForge] forge flues

[GRAF]

It is a really simple process to make a simple t ripple wall thimble for 
just the point of penetration.
Around here triple wall for solid fuels and oil is the rule.
The key is free air circulation between the pipe walls. the outer wall 
is cool to the touch.
Mike Graf



john ortery wrote:
> Thanks guys,This seems to be the thought all around.  Most of the people I
> talked to seem to think that as long as you have double wall pipe at the
> exit point and are insulated from any combustible material all should be
> well.
> Thanks again Allen Ortery
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