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 ...

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, even find it indispensable. It has changed the ...

There is a common misconception that it’s impossible to have a furnace — a major component to an HVAC system — installed in the attic due to tight space and minimal access. This is not the case. As ...