Hello all. Can someone please tell me if this is acceptable.
Thank you.
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Gas water heater venting into HVAC returnduct
You know this how?
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I sure hope he means “passing through.” That was my assumption anyways.
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That pex shouldn’t be installed so close to the flue either
Is it ductwork or is it a firestop?
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And the size of that notch in the joist. Wowzers!
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I see a separate NG natural draft water heater flue pipes.
The 2 sections do not appeared secured with 3 fasteners but maybe the are twist on sections. Either or, the 2 sections are not sealed with aluminum foil tape.
No, for a number of reasons. 1) The floor joist has been over-notched to allow the passage of the vent pipe. 2) the vent pipe connections are not tight. 3) It appears that the “B” vent is touching the foil facing on the duct insulation when 1" min clearance is required. 4) And if you are correct that the “B” vent passes through a joist space used for an HVAC return, that would not be allowed.
Thank you all for the feed back.
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Hey Ryan, thanks for the info, however, I thought the exhaust pipe would be under negative pressure. I think this would also negate the requirement for foil tape around the connections. Am I wrong on this?
I am not sure I 100% understand your question, but here is my take…
The code reference applies because it is a “vent.”
- I am not sure if exception 1 applies because I haven’t dug into what that means.
- Exception 2.1 does not apply because this vent does not appear to be under positive pressure.
- Exception 2.2 may apply but can’t tell from the picture and I don’t know what they mean by “above ceiling space.”
- Exception 2.3, I don’t really see the vent in a conduit, and again not really sure what they mean by “ceiling space?”
