HVAC uses of flexible air duct have grown exponentially over the last two decades, all over North America. Contractors and installers say they like it, and some find it indispensable. It has changed ...

Many in our industry believe the duct material used in an installation determines how well the HVAC system moves air. Because of this mentality, flexible duct often gets a bad name. The issue isn’t ...

Q We had to put a new furnace in our home and they put in a flexible tube from the outside to the furnace. It was to supply fresh air for the furnace, but it seems to me like having an open window in ...