# Mechanical (HVAC) permit MEC2026-01647 at 3171 4th St, Boulder

Boulder Planning and Development Services permit MEC2026-01647: issued Sep 8, 2026 for mechanical (hvac) work at 3171 4th St. NKB110 Lochinvar Noble Wall Mount High Efficiency Boiler. 95% AFUE 110,000 BTU 10:1 Turndown Ratio 2" Venting up to 100' Universal Vent Connector Features SMART CONTROL? PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: 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: MEC2026-01647
- Issued: Sep 8, 2026
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical HVAC/Solar)
- Status: Issued (city: Issued)
- Reported cost: $12,093
- ZIP code: 80304
- All permits at this address: https://nearbypermits.com/boulder/address/3171-4th-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 06:20 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 3171 4th St: https://nearbypermits.com/boulder/address/3171-4th-st/