The 2024 edition of NFPA 90B provides comprehensive requirements for the construction, installation, operation, and maintenance of warm air heating and air-conditioning systems. It aims to prevent the spread of fire, smoke, and gases through HVAC systems in one- and two-family dwellings and buildings under 25,000 cubic feet in volume.
*Please note that this book will need to be special ordered. Delivery may take some extra time. We appreciate your patience and understanding!
