Alternative fire suppression systems are common in many commercial buildings throughout the United States. Wet-chemical, dry chemical, systems utilizing foam, clean agent, and carbon dioxide ...

Every industry has its problems and the HVAC business is no different. One of the most common issues that gives our trade a black eye are well-meaning contractors hooking up high-efficiency equipment ...

For the past 50 years, engineers have been “designing” duct systems. Quite often, they were not actually designing the systems, but were sizing duct the duct according to some rule of thumb. The rules ...