Problems with
Air Distribution

If you are having comfort or air circulation problems in your home, investigate the ductwork to see if it is contributing to or causing the problem. Begin by locating the ductwork, tracing it from the heating or cooling unit to the rooms it serves. Now that you know where each branch duct leads, you are in a better position to ask whether your system is likely to be a problem or a big energy loser.

Blind-Alley Ducts No Return-Side Ductwork Disconnected, Torn, or Damaged Ducts Uninsulated Ducts in Unconditioned Spaces

Poor Duct Layout Unbalanced Air Flow Supply- and Return-Side Leakage Health Hazards with Duct Systems