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Central Air: What House Owners Need to Know

regaisnbmu

Central air conditioners distribute cool air through a system of supply and return ducts. Supply ducts and registers (i.e., openings in the walls, floorings, or ceilings covered by grills) bring cooled air from the air conditioning unit to the home. This cooled air ends up being warmer as it flows through the house; then it flows back to the central air conditioner through return ducts and registers.

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