This incredible machine quickly creates circular ductwork in any size you need within seconds. A powerful and efficient tool designed for precision manufacturing, making HVAC and fabrication work ...

This article originally appeared in the Spiral Duct Manufacturers Association insert in the January 2017 issue of SNIPS magazine. There are several factors that a designer should consider when ...

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 ...