# Mechanical (HVAC) permit MEC2025-02246 at 3057 4th St, Boulder

Boulder Planning and Development Services permit MEC2025-02246: issued Dec 16, 2025 for mechanical (hvac) work at 3057 4th St. Mitsubishi Electric Heat Pump System System Size: 25K BTUs System Components: (2) Mitsubishi HiWall - MSZ-GX12NL (1) Mitsubishi Outdoor Unit - MXZ- 3D24NLHZ Permit Included Electrical Upgrades: Branch Circuit Connection 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: MEC2025-02246
- Issued: Dec 16, 2025
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical with Electrical)
- Status: Finished (city: Letter of Completion)
- Reported cost: $16,507
- ZIP code: 80304
- All permits at this address: https://nearbypermits.com/boulder/address/3057-4th-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 14:24 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 3057 4th St: https://nearbypermits.com/boulder/address/3057-4th-st/