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 ...

If the duct is a standard size, remove the register and drop the fan into the boot. Secure it to the floor on each side with screws. If the duct is smaller than standard, see photos below. Plug the ...

Homeowners know when a duct problem arises. They know when a room is too warm or too cold. But they might misdiagnose the cause. “They are under the assumption that when they get a new a/c system, ...