One of the most important systems in your home may be quietly wasting your energy dollars. Often overlooked, typical duct systems lose 25-40% of the heating or cooling energy put out by the central furnace, heat pump, or air conditioner. Common duct system problems include:
- Leaky joints or visible holes in the duct surface
- Disconnected ducts that have fallen away from each other
- Inadequate or poorly finished duct work
- Un-insulated or poorly insulated ducts in attics and crawlspaces
Most duct repairs should be made by or with the help of a trained professional, especially those that will take place in unconditioned spaces. A qualified pro can also help you more accurately assess the duct problems that you have. If you decide to make minor duct repairs on your own, keep in mind that duct tape is usually only intended as a temporary fix. Silicone caulking or cement with mastic are better sealing options. Improving your duct system efficiency can cut your annual utility bills by as much as $300, and will improve the overall air quality in your home.