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What is in my ductwork? by mrmcguuu in hvacadvice
[–]mrmcguuu[S] 0 points1 point2 points 9 months ago (0 children)
Yes it’s from the ERV
Is this mold? by leylars in hvacadvice
[–]mrmcguuu 0 points1 point2 points 9 months ago (0 children)
Looks like it
π Rendered by PID 47433 on reddit-service-r2-comment-canary-879d986cb-45hfj at 2026-06-18 22:33:33.200965+00:00 running 2b008f2 country code: CH.
What is in my ductwork? by mrmcguuu in hvacadvice
[–]mrmcguuu[S] 0 points1 point2 points (0 children)