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Attic ductwork: Many ductwork systems combine flexible ducts with rigid sheet metal ductwork. The uninsulated sheet metal duct has no protection from extreme attic temperatures that make the HVAC system work harder and longer than necessary.
Your ductwork system has an important job: distributing air that has been “conditioned” (heated or cooled) by your HVAC system throughout the house so that your living space can be at the right temperature. Supply Ductstransport conditioned air from your furnace or air handler to different rooms or hallways.
A separate system of Return Ductwork brings air back to the furnace or air handler to be reconditioned.
In theory, a ductwork system sounds fairly basic. But there are several problems that shouldn’t be allowed to persist because of their adverse effects on your comfort, health and utility costs.
Common ductwork problems
Leaky ducts are very common and can diminish the efficiency of your HVAC system by as much as 40%. It doesn’t make sense for air that you’ve paid to heat or cool to leak into an attic, basement or crawl space through gaps and cracks in your supply ducts. And it’s not healthy to breathe crawl space or attic air that’s sucked into leaky return ducts and then circulated back to your living space. Fortunately, these problems can be corrected when AcEco RCI seals your ductwork system.
Uninsulated or poorly insulated ducts waste a tremendous amount of energy. Just think about what happens in the winter, when your HVAC system is blowing heated air through uninsulated ducts located in a frigid attic! Before your HVAC system can heat your living space, it must first heat up the attic ductwork. In the summer, you’re blowing chilled air through the same uninsulated ductwork, that’s been heated to about 120 degrees.
Imbalanced ductwork wastes energy while also creating areas in your house that are too hot or too cold. Balance problems occur when the amount of air delivered through supply ducts doesn’t match the amount of air drawn in through your return ducts. This typically occurs because of improper location and size of supply and return ducts.
Safety: Pressure imbalances caused by air duct leakage can lead to backdrafting in combustion appliances such as furnaces, wood stoves and gas ranges. When this happens, you risk exposure to carbon monoxide.