A big step in the right direction for HVAC companies is the move toward proper design utilizing software. For decades, many have been using rules of thumb to size equipment and duct systems, making ...

The fourth edition of HVAC Systems Duct Design presents the basic methods and procedures required to design HVAC air distribution systems. This manual provides the HVAC system designer detailed ...

Big Easy AC Heating launched services for installing residential air ducts in August 2025, expanding its HVAC service portfolio to address growing demand for professional ductwork solutions. The ...

The National Air Duct Cleaners Association (NADCA) urges professionals to avoid using chemicals as a method for cleaning and maintaining air duct systems. NADCA, otherwise known as the HVAC Inspection ...

Duct smoke detector maintenance requirements are not included in the NFPA standard that covers HVAC systems (NFPA 90A or 90B); however, the International Code Council’s 2015 Mechanical Code does state ...

The contaminants identified as cancer-causing include benzene, formaldehyde, butadiene, toluene, acrylonitrile and isocyanates, among others. These chemicals are emitted as gases and soot during a ...