UNSPSC 40101861: Preheater

Preheater is a general term to describe any device designed to preheat the combustion air used in a fuel-burning furnace for the purpose of increasing the thermal efficiency of the furnace. Various types of preheaters are Dry / Wet /heat, air and gas.

UNSPSC 40101861 Preheater (Commodity) encompasses heating and air-handling equipment components that state and local governments procure as part of building systems modernization and maintenance. Recent solicitations show that state and local bodies buy preheaters and related duct accessories—including duct heaters, air handling units, and energy recovery equipment—primarily as replacement components within broader building automation and HVAC system upgrades. Issuing bodies include county facilities management offices and municipal transit authorities. Orange County, Florida solicited preheater and air duct accessory replacement as part of a $2.89 million building automation system retrofit at its Corrections Booking and Release Center; the City of Charlotte solicited ongoing preventative maintenance and repair services for boiler and chiller systems (which work closely with preheating equipment) across CATS transit facilities. The code shows limited recent activity specific to preheater components alone; most opportunities bundle preheaters with broader HVAC system work rather than treating them as standalone procurement lines.

The recent opportunity base for this code centers on Florida and North Carolina. Orange County's sealed-bid IFB for building automation and smoke/fire alarm duct accessories—including duct heaters and energy recovery equipment—closed October 20, 2026, with a 5% service-disabled veteran preference and a required 10% bid bond. The City of Charlotte's RFP for boiler and chiller maintenance (solicitation 26920271769, due October 15, 2026) spans CATS facilities in Charlotte and Mecklenburg County and requires vendor certification for Trane, Pulse, Aalon, Carrier, and Lochinvar equipment. Beyond these two recent postings, the available record shows no other active state or local preheater-specific solicitations; the code appears to see minimal standalone procurement activity, with most preheater work embedded in system-level contracts.