Power Vent Flue Deposits

Any ideas what would cause these deposits around the flue on this power vent?

Welcome to our forum, Troy!..Enjoy! :smile:

P.S. It almost looks like they trie to seal the joint.

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Thank you. It is more of a scaling calcium type depost.

Well if that’s the case, then moisture likely is involved. How the moisture is getting there is the dilemma. Could be a venting issue. Was everything else kosher with the install?

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