UNSPSC 83101903: District heating

District heating systems distribute steam or hot water to multiple buildings. The heat can be provided from a variety of sources, including geothermal, cogeneration plants, waste heat from industry, and purpose-built heating plants. For example, waste energy heats water, which is piped into a harness to heat other buildings.

UNSPSC 83101903 District heating is a Commodity code that captures state and local procurement of heating and cooling equipment, components, and related installation and maintenance services. In practice, state and local governments use this code to buy HVAC system replacements, rooftop units, air handlers, condensing units, chiller and boiler maintenance and repair services, ductwork accessories, building automation system controls, and water treatment services for hot and cold water systems serving institutional and municipal facilities. Recent solicitations show activity spanning new equipment procurement, parts and accessories for ongoing maintenance, installation labor, and preventative maintenance contracts.

Texas Department of Criminal Justice (TDCJ) dominates recent activity, soliciting repeatedly for HVAC equipment and accessories across multiple correctional units (Clemens, Coffield, Wynne, Goree, Bradshaw, Hughes, Ellis, Ferguson, Wainwright, and others). Beyond Texas, Orange County, Florida issued a $2.89 million sealed bid for building automation system replacement and fire/smoke damper retrofitting at a correctional booking center (response due October 20, 2026); the City of Wheat Ridge, Colorado requested mini-split AC installation proposals for a public park facility (response due October 2, 2026); the State of Oregon Department of Administrative Services sought proposals for HVAC water treatment services across 24 DAS-owned buildings statewide with a not-to-exceed compensation of $5 million (response due October 5, 2026); and Habersham County, Georgia solicited replacement of six heat pump units at the Health Department facility with a mandatory pre-bid meeting on May 27, 2026 and proposals due June 5, 2026. Other recent issuers include the City of Charlotte (CATS boiler and chiller maintenance, response due October 15, 2026), Chatham County Mosquito Control in Georgia (building management system replacement, response due October 21, 2026), Saginaw Intermediate School District in Michigan (roof and HVAC work, response due September 24, 2026), Stephens County Board of Education in Georgia (districtwide renovations including HVAC improvements, estimated budget $20–26 million), and Marshall Public Schools and Fort Worth in Texas. Geographic concentration centers on Texas, with significant activity in Florida, Georgia, Colorado, Oregon, and Michigan; Texas shows the highest volume with TDCJ issuing substantially all its procurements through the Bonfire Hub portal (https://tdcj.bonfirehub.com) under the Euna Procurement platform, typically with short response windows (7–30 days) and firm fixed-price or lump-sum cost structures.