NIGP 03192: Unit Heaters, Gas-Fired (Duct and Suspended Types)

NIGP 03192 Unit Heaters, Gas-Fired (Duct And Suspended Types), an Item code, encompasses maintenance, repair, and installation services for boiler and chiller systems at public facilities, as evidenced by current state and local solicitations. State and local governments under this code are buying preventative maintenance, emergency repair, system optimization, and equipment upgrades on existing heating and cooling plant — work that requires certified technicians with access to proprietary parts and demonstrated familiarity with specific manufacturer systems (Trane, Carrier, Lochinvar, and similar). Issuing bodies include transit authorities, water utilities, and county purchasing offices; the City of Charlotte's Charlotte Area Transit System (CATS) and the Great Lakes Water Authority represent the institutional buyers visible in recent opportunities.

Recent solicitations show activity in Michigan and North Carolina. The City of Charlotte issued RFP 26920271769 on September 22, 2026, requesting boiler and chiller maintenance and repair services across CATS facilities in Charlotte and Mecklenburg County, with proposals due October 15, 2026. The Great Lakes Water Authority issued a 2027 Job Order Contract solicitation (REQ0009487) in July 2026 with an August 27 deadline, seeking contractors capable of managing multiple water and wastewater projects simultaneously across Wayne County, Michigan, including mechanical and HVAC trade coordination. No contract values, incumbent vendors, or specific equipment installation quantities are disclosed in the available postings.