Supply ducts deliver the freshly heated or cooled air to each zone or room. The design, size and condition of the supply ductwork determine the volume and speed of air that reaches each zone or room.

The second function of the ductwork, the return ducts, connect to the inlet side of the new system and pull air out of the inside area to be cooled or heated. One filter is located here to clean the air as it enters the system.

You should definitely have your air ducts checked periodically for leaks. Leaking ducts cause up to 27% of the losses of heating and cooling, according to the U.S. Department of Energy and other sources we reviewed. This loss causes you to enjoy less of the heating and cooling available from your system and also raises your monthly utility bills. After the short pay back period, you continue to gain more comfort and lower bills each month.