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Posted by Noon-Air on March 25, 2007, 11:02 pm
>I have a 25 year old wood-fired boiler with a 7" flue outlet. It is
> currently vented into a similarly sized flue of a 20 foot interior
> chimney, except for the 6 feet above the roof.. It has excellent
> draft but I am having a problem with creosote.
Burn seasoned hardwood, or buy a gas or oil fired boiler
> I would like to install a 5 1/2 X 5 !/2" stainless 316 rigid flue
> liner, surrounded by 1/2" of Super Wrap insulation, which will fit
> inside my existing clay flue liner.
>
> Because the new liner would be the equivelent of a 6" liner and my
> boiler outlet is 7", will there be a problem with code. I don't
> anticipate any problem with draft. Otherwise, I will have to remove
> my existing clay flue liner.
Its not *just* the code but also what the manufacturers installation
instructions call for.
> Please advise.
Call your local *competent*, licensed, insured, professionally trained, HVAC
technician to install a new oil or gas fired boiler.
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