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01-31-2013, 12:54 AM #1
Curious Water Heater Vent & Terminal
I've not seen this gas appliance vent terminal before. The manufacture's web site offers little info. The Cat 1 water heater in the garage uses a 2-foot or so single wall vent connector that transitions to a vertical B-vent run which enters the exposed wood framing flooring overhead where the pipe transitions back to single wall and disappears. The vent pipe is thn routed up a 2nd level chimney chase where it exits the wall as pictured. This seems to be have a single wall collar, no thimble, likely single wall pipe in the wall...anyone seen this before? Of course, all in all--it looks completely wrong.
Thanks
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01-31-2013, 05:28 AM #2
Re: Curious Water Heater Vent & Terminal
As you know, single wall should not pass through walls, floors, attics, or roofs.
' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.
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01-31-2013, 07:01 AM #3
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01-31-2013, 07:45 AM #4
Re: Curious Water Heater Vent & Terminal
CAT I appliances must terminate vertically unless power vented by sidewall.
This appears to be Al29-4C stainless steel special gas vent for CAT III & IV appliance venting. It is single walled uninsulated and not intended for CAT I venting. There is no approved way to attach it to the Bvent since it is not intended for this application. It is all wrong.
Keep the fire in the fireplace.
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01-31-2013, 08:07 AM #5
Re: Curious Water Heater Vent & Terminal
It's crazy wrong...thanks!
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