You can see a water leak, but an air leak is invisible. Just because you can’t see air leaks in your home, don’t think they aren’t causing you problems or costing you money.
What are duct leaks?
In houses with forced-air heating and cooling systems, ducts are used to distribute conditioned air throughout the house. In a typical house, however, about 20 percent of the air that moves through the duct system is lost due to leaks, holes, and poorly connected ducts.
Air Duct Animation Video:
Check out this video to learn more about your duct system: