Two Water Heaters

Any chance that could ignite? :slight_smile:

The birds? Or the sewer gas? :shock::twisted:

“G2427.10.4
Where two or more vent connectors enter a common gas vent, chimney flue or single-wall metal pipe, the smaller connector shall enter at the highest level…”

Also, there are length requirements which might be an issue. Definitely one for referral to a qualified contractor.