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Cold air leaking from wood stove pipe

arnoldk | Posted in General Questions on


I have a new build with double stud wall that got a 0.47 ACH @ 50pa (156 CFM50) prior to insulation, vapor barrier and drywall. Now that the cold winter weather as set in in Ottawa, Canada I have notice some cold air leaking through the wood stove pipe connection (red). I know the overall energy impact is likely very small, I still want to seal it.

Does anyone have recommendation as to the best product to use to seal the leaks given the high temperature produced by the wood stove when in operation?

Thank you,

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  1. nynick | | #1

    They make stove cement...comes in a tube like caulk. Kind of messy so be careful around your stone. Maybe you could use a small amount of high heat silicone sealant for the pipe joint.

    1. arnoldk | | #2

      I have some of the Rutland silicone sealant for when I installed the outdoor air kit adaptor to the stove but it's only rated to 500*F. I believe wood stove can easily get hotter under normal usage.

      What would happen to the silicone sealant if the stove temperature exceed 500*F?

      Thank you,

      1. nynick | | #3

        No idea, but the Rutland Stove and Gasket Cement (not the silicone) is rated to 2000 degrees.

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