Approved remodel drawings require an independent plumbing vent to the exterior and prohibit connecting it to the in-service water-heater flue. A proposed route terminates the plumbing vent inside that flue. What should the reviewer do?
- AApprove it merely because the chimney is masonry.
- Reject the proposed connection and require a route that satisfies the approved separation.
- CApprove it if the pipe is increased one nominal size.
- DTreat the flue as abandoned while the water heater is still connected and operating.
Where to look it up
Explicit exercise assumptions; not a universal code requirement.
Why B is correct
The flue is explicitly in service and the approved separation is explicit. The proposed connection violates that condition. This does not decide whether an independently routed pipe could use a truly abandoned and suitably converted chase.