I installed a new water heater and want to vent it right. The old water heater used ABS pipe since it had a blower. Basically I have a 3" b gas vent pipe coming in and connecting to a flex gas pip attached to the vent hood. I used 3 sheet screws to attach the flex to the hood and 3 sheet screws to attach the flex to the B gas vent pip that runs right outside and has the vent cap on it. Does this sound correct? No I just use screws and no tape? Thanks.
Water Heater Gas B-Vent Install
exhaust-venthvacwater-heater
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Best Answer
Based on the International Residential code (which may or may not apply where you live), this installation is not compliant. Things that I see that need to be corrected include (but may not be limited to):
Also, I see that one of the corrugated copper water tubes is a little flattened. You may want to replace it. Also, I see the plastic dielectric at the end of the tube on the right, but not on the left. If there is not any plastic dielectric, I'd suggest replacing it with a tube that has a dielectric. These connections do NOT need plumber's tape or dope. Also, these corrugated tubes should be replaced when the water heater is replaced.