For every 1 ton of air conditioning capacity there must be 400 cubic feet per minute of air volume available in both return air duct and supply air. Proper inspection will identify the root of ductwork problems. Most often, ductwork problems require the help of a professional; however, home owners can use the list below to confirm their suspicion of problematic ducts.Uninsulated ducts When a portion of the ductwork system travels through areas material for curtains for sale that do not have access to cooled or heated air, like an attic or garage, cool air moving through the ducts will succumb to the hotter attic air surrounding the duct pipes, a process called conduction.

Further, even if the ducts were installed correctly, over time connections can loosen or ducts can incur damage. Because the majority of this system is hidden, home owners can have a hard time visually assessing ductwork's condition. They will perform a comprehensive ductwork inspection in the home, and will make any recommendations to improve the home owner's HVAC service. Damaged ducts A variety of factors can lead to damaged ducts, such as connections breaking loose, human interference or poor installation methods. The return air portion of ductwork is particularly prone to problems such as a lack of adequate return grilles, and the HVAC system is prone to leakage too.

Poor duct returns  A healthy, efficient ductwork system relies on a balanced supply of air sent into the home, along with a healthy amount of return air that moves back into the HVAC equipment. In the winter, heated air can cool off for the same reason.. Sealing ducts can remedy leaks, but seriously damaged ducts may require that the home owner replace a portion of the HVAC system's ductwork. There must be an equal amount of return air to support the supply air ducts.HVAC ductwork problems can go unnoticed for a long time, but the efficiency of this air delivery system directly influences the performance of a home's air conditioner, furnace or heat pump.

The HVAC system contains of a long, branching group of duct pipes that snake throughout a home, hidden behind walls, ceilings and floors, or in the attic, crawlspace or garage. For home owners experiencing hot or cold spots and restrictive air flow in their home should contact an HVAC professional. This ductwork problem, however, is easily remedied by insulating ducts. A home's HVAC may be losing as much as 30 percent of its conditioned air as a result of faulty or leaky ducts. So for example, a three ton air conditioning units will need 1200 CFM of duct duct work in both supply and return air ducts. No matter the cause, if conditioned air leaks out of the ducts, the home owner will pay for it in terms of higher energy costs because of reduced efficiency of the HVAC system.