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TOPIC: General Discussion

pellet stove thru copper roof

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I am installing a pellet stove whose flue pipe will go up thru a copper roof. The flange used is galvanized and I am concerned about corrosion between copper and galvanized. I have thought about using a rubber boot as an interface between the two metals or even having someone fashion a copper flange. Any thoughts about what I should do?? Thanks. [email protected]
Guest User

9/3/2008
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This is a tricky one. Even if you have something between them, rainwater would bring some elements of the galvanization in contact with the copper. I would consider either as you mentioned a copper flange or else a stainless steel flange.
Nate Libbey

9/3/2008
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I agree with Nate. Todd Miller
Todd Miller
Isaiah Industries, Inc.

9/5/2008
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The copper flange solution is a good one but expensive. There is still the problem of the connection between the flange and the pipe itself. I thought that by painting the galvanized flange and using roof tar around all the base to cover everything, the rubber gasket would work. Any thoughts on that. Thanks. Jerry
Guest User

9/5/2008
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