HVAC Replacement - MI

Description: The U.S. Fish and Wildlife Service seeks HVAC and boiler replacement at the Shiawassee National Wildlife Refuge Maintenance Building in Saginaw, Michigan. The work requires removing an outdated wood-fired boiler and replacing the existing LP-gas-fired boiler with a new 150,000-BTU LP gas cast-iron natural-draft boiler with 84–86% efficiency. It also includes new vent piping through the existing chimney, updates to boiler piping and trim, and replacement of pneumatic controls with electronic zone valves.