Steveo
Well-Known Member
Yeah, see, other than the gas requirements there's the "direct vent" part. I couldn't even do what you did as I think my flue pipe is an oval shape, and not straight up through the 2nd floor and attic.The most difficult part we had was that the vent had to be switched to PVC. I don't know if that's just a new code thing or part of the tankless install. But we ran a PVC sleeve inside the metal vent up to the roof to meet code.
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