Boiler / Pressure Vessel Installation Permit & Certificate of Inspection: Nashville restaurant guide
TN Dept. of Labor & Workforce Development — Boiler Unit Confirm with the city
What it is
Certain boilers and large water heaters need a state permit to install and an inspection certificate before operation.
When a restaurant needs it
Installing, reinstalling or replacing a boiler or regulated pressure vessel.
How to apply
The licensed boiler installer files the state installation permit application before installation and arranges the state inspection.
Documents you’ll need
- Installation permit application
- Equipment data/nameplate information
Good to know
The Boiler Unit's overview page doesn't publish size thresholds, but the state installation permit application (Form LB-0936) treats water heaters under 200,000 Btu/hr as not applicable for installer licensing. Ask your installer whether your water heater falls under state jurisdiction.
Official source
Answer a few questions about your space and get every permit in order, with a timeline, a cost range, walkthroughs, and every application filled in for you to sign with Open.
Last reviewed 2026-10-06. Guidance only, not legal advice.