NFPA 90B INSTALLATION OF WARM AIR HEATING AND AIR CONDITIONING SYSTEMS, 2024

The NFPA 90B: Installation of Warm Air Heating and Air Conditioning Systems, 2024 Edition, available from 1 Exam Prep, establishes the minimum requirements for the design, installation, and maintenance of warm air heating and air conditioning systems to reduce fire and smoke hazards. This code addresses ducts, air connectors, plenums, and air-handling equipment for residential and light commercial applications. Recognized by mechanical licensing boards and PSI-administered HVAC exams, NFPA 90B ensures compliance with fire safety and performance standards referenced in the Florida Building Code and national mechanical regulations.

Help Ensure Compliance in Heating and Cooling Systems with the latest edition of NFPA 90B.

Heating and cooling systems are a great modern convenience, but fire, smoke, and gases can quickly spread through heating, ventilation, and air-conditioning (HVAC) systems in the event of a fire. 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 systems for warm air heating and air conditioning, including filters, ducts, and related components.

The standard applies to indoor HVAC systems, components, and air distribution in one- and two-family dwellings and all buildings under 25,000 cubic feet in volume. Other topics covered in the 2024 edition include:

• Integration of ventilation and air-conditioning system(s) with building construction
• Fire integrity of building construction
• Equipment, wiring, and controls including temperature limit controls and fan controls