Café Tenant Improvement: Unpermitted Water Heater and Gas Line
A plumbing inspector responds to a 1,200-square-foot retail-to-café tenant improvement. The approved plans cover only a new accessible restroom and a mop sink. During the rough-in inspection, the inspector finds a 50-gallon water heater that was replaced without a permit; its T&P relief discharge is reduced from 3/4 inch to 1/2 inch copper, runs behind a framed wall, and terminates 36 inches above the floor. A new 25-foot, 3/4-inch black-iron gas line to a range has also been installed under a separate “appliance hookup” work order. There is no gas permit, no pressure-test record, and the range connector is 8 feet long. The contractor asks the inspector to approve the restroom rough-in and “deal with the gas later.” The owner says another inspector previously allowed the same work.
1. Identify the permit and administrative violations, and state what must occur before the work is concealed or approved.
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The approved scope is only the restroom and mop sink. The water heater replacement and the 25-foot gas line are outside that permit and require an approved plumbing/gas permit and plan review. A claim that the water heater is “like-for-like” does not automatically exempt it; the inspector must apply the adopted permit rules, and most UPC administrations require a permit for replacement of a water heater and for new gas distribution piping.
The T&P discharge is also noncompliant: reducing from 3/4 inch to 1/2 inch defeats the full-size requirement, and terminating 36 inches above the floor is outside the usual 6-to-24-inch range above the floor or receptor. It must not be trapped or concealed where a discharge would be undiscovered.
The gas line has no permit, no pressure-test record, and an 8-foot appliance connector. Before approval, the inspector should stop concealment of the affected work, require permits and revised plans, require correction of the T&P discharge, require a witnessed gas pressure test, and inspect all gas piping and connections before cover. Only then can a partial or final approval be considered.
2. The contractor argues that the gas line is only an appliance hookup and that the 8-foot connector is permitted because the range is movable. How should the inspector evaluate that argument?
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The inspector should separate house piping from an appliance connector. The 25 feet of 3/4-inch black iron is distribution piping, not a connector. It must be permitted, sized, supported, protected, provided with a shutoff and sediment trap where required, and pressure-tested. Calling it an “appliance hookup” does not remove it from the gas-piping chapter.
An appliance connector is the short flexible or semi-rigid section between the shutoff valve and the appliance. UPC limits are commonly 6 feet maximum; an 8-foot connector exceeds that limit. A movable appliance does not create an exception for a longer connector. The correction is to hard-pipe closer to the range and use a connector of 6 feet or less, or to hard-pipe directly to the appliance where permitted.
The “another inspector allowed it” statement is not a code defense. Each inspection stands on the adopted code and approved plans. The inspector should document the violation, require correction, and verify the gas test before accepting any of the gas work.
3. May the inspector approve the restroom rough-in while the gas work remains unresolved? Explain how to document the decision.
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The inspector may approve only the portion that is actually compliant and inspected, but should not issue a final approval or a certificate of occupancy while unpermitted gas work remains. The restroom rough-in can be recorded as a partial approval if its piping, venting, and fixture rough-in comply. The gas line and water heater are separate corrections and should be listed on a written correction notice.
The inspector should not allow the gas piping to be concealed before it is inspected and tested. If the open gas joints or T&P discharge are about to be covered, the inspector should direct that concealment stop until reinspection. A stop-work order may be appropriate if the unpermitted gas work creates an immediate hazard.
Documentation should include the permit number and approved scope, the specific code deficiencies, photos or field notes, the reinspection requirements, and the fact that approval is partial only. The record should state that final approval is withheld pending gas permit, pressure test, T&P correction, and inspection of concealed work.