Installed the right way, flexible duct is a great ventilation product for a great many applications. Sometimes, however, hurried installations create poor-quality results - as they can for any HVACR ...

In David Monson’s region of New Hampshire, the Armstrong Duct, Vent, Hearth and Home operations lead says he often works on what he calls “Brady Bunch” houses – homes built in the ‘60s, ‘70s and early ...