# Mechanical (HVAC) permit MEC2025-00140 at 380 S 43rd St, Boulder

Boulder Planning and Development Services permit MEC2025-00140: issued Jan 24, 2025 for mechanical (hvac) work at 380 S 43rd St. Replacement furnace and air conditioner. Lennox Signature Series Standard Efficiency Two Stage Furnace - 90,000 BTU capacity, 80% AFUE. Lennox Merit Single Stage Air Conditioner - Up to 17 SEER rating, 3 ton cooling capacity. Reuse electrical circuit from condenser.

- Permit number: MEC2025-00140
- Issued: Jan 24, 2025
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical with Electrical)
- Status: Finished (city: Letter of Completion)
- Reported cost: $13,000
- ZIP code: 80305
- All permits at this address: https://nearbypermits.com/boulder/address/380-s-43rd-st/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-11 03:26 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 380 S 43rd St: https://nearbypermits.com/boulder/address/380-s-43rd-st/