HVAC without ductwork is like ice cream without a freezer: It just doesn’t work. Ductwork is a mandatory comfort delivery system. In fact, the only thing optional about it is whether or not HVAC ...

A Massachusetts man says he has the solution for one of the top causes of HVAC system inefficiency: air leakage from sheet metal ductwork. His solution: Get rid of the sheet metal. David Carpinetti, a ...