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Chimney question

DiverseNate | Posted in Energy, Heating & Insulation on

I have a newer oil furnace that’s connected to the original coal furnace masonry chimney. the chimney has a 11 3/4″ x 6 1/4″ clay flue liner. I want to install a wood stove. Is it possible to install 2 stainless steel flue liners (a 5″ for my furnace and 6″ for the wood stove) in the old masonry chimney. I know in new chimney construction they want a 4″ wythe between flues, how important is that?

I plan to cover the whole chimney with a flue cap that allows the flues to discharge at differant heights.  

Replies

  1. theslateman | | #1

    You may need to remove the flue tiles to get clearance enough for both liners.

    The stove liner should be insulated. Copperfield sells a tool to bust out the clay liners.

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