# Mechanical (HVAC) permit MEC2026-00063 at 1635 6th St, Boulder

Boulder Planning and Development Services permit MEC2026-00063: issued Jan 21, 2026 for mechanical (hvac) work at 1635 6th St. Installation of a Burnham atmospheric cast iron boiler (standard efficiency) as part of a complete mechanical room system replacement. Includes removal of the existing boiler system (if applicable) and full installation of the following: -Burnham cast iron boiler (model sized to home?s heat load) -Standing pilot or electronic ignition (depending on model) -Zone valves (as required) -Taco Zone Control Box -Ball valves and boiler drains -Air separator and automatic air vent -Automatic fill valve and backflow preventer -Expansion tank (sized appropriately) -Standard chimney venting with appropriate draft hood 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: MEC2026-00063
- Issued: Jan 21, 2026
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical HVAC/Solar)
- Status: Finished (city: Letter of Completion)
- Reported cost: $27,312
- ZIP code: 80302
- All permits at this address: https://nearbypermits.com/boulder/address/1635-6th-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 10:03 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 1635 6th St: https://nearbypermits.com/boulder/address/1635-6th-st/