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2024 NFPA 90B Warm Air Heating & A/C Systems

Product Code/ISBN: NFPA 90B-24

Help make sure systems of warm air heating and air conditioning are safer and more compliant with the latest edition of NFPA 90B.

In the event of a fire emergency, fire, smoke, and gases can quickly spread through heating, ventilation, and air-conditioning (HVAC) systems, elevating the risk of injury and loss. NFPA 90B, Standard for the Installation of Warm Air Heating and Air-Conditioning Systems, provides complete provisions for the construction, installation, operation, and maintenance of HVAC equipment, including filters, ducts, and related components. The standard applies to indoor systems in one- and two-family dwellings and buildings under 25,000 cubic feet.

NFPA 90B criteria covers:

  • HVAC systems, components, and air distribution
  • Integration of ventilation and air-conditioning system(s) with building construction
  • Fire integrity of building construction
  • Controls including wiring, manual control, smoke dampers, and smoke detection for automatic control
  • Acceptance testing