When it comes to ‘green HVAC,’ it doesn’t get more green than copper ductwork. Cobre29 founder and Polar Air Supply owner Jon Bell, with the help of his son, Jeff, is building a network of ‘healthy ...

The efficiency of a duct system can affect the efficiency of the heating-cooling equipment. The majority of homes today are heated with furnaces (gas, oil, or electric) and cooled with an air ...

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 ...