# Mechanical (HVAC) permit MEC2025-01520 at 3229 4th St, Boulder

Boulder Planning and Development Services permit MEC2025-01520: issued Sep 16, 2025 for mechanical (hvac) work at 3229 4th St. Replace standard tank water heater with high efficient tankless water heater (0.95 UEF) Install a Navien NPE-240A2 tankless water heater including gas and water piping running behind the furnace to the new location in the closet adjacent to the laundry and mechanical room, flue and intake piping through the roof. 120 volt eceptacle for water heater. All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the inspection process, please provide photographic evidence of the pressure test directly to the assigned inspector on the day the rough mechanical inspection is scheduled. Approved tests: 10 ft water test, 5 PSI positive pressure, or Negative 5 psi air pressure test for 15 Minutes.

- Permit number: MEC2025-01520
- Issued: Sep 16, 2025
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical with Electrical)
- Status: Finished (city: Letter of Completion)
- Reported cost: $6,692
- ZIP code: 80304
- All permits at this address: https://nearbypermits.com/boulder/address/3229-4th-st/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 04:06 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 3229 4th St: https://nearbypermits.com/boulder/address/3229-4th-st/