What component of a forced-air system is used to distribute heated air throughout a home?

In a forced-air heating system, the component responsible for distributing heated air throughout a home is the blower fan. The blower fan pushes warmed air from the furnace or heat exchanger into the ductwork of the distribution system. This continuous flow of air is crucial because it ensures that the heated air reaches all parts of the home efficiently, allowing for effective temperature regulation and comfort.

While return ducts play a role in bringing cold air back to the furnace for reheating, and air filters are used to clean the air in the system, they do not actively distribute the heated air. Registers, located at the ends of the ductwork, allow the warm air to exit the ducts and enter the living spaces, but it is the blower fan that initiates and maintains the movement of air throughout the entire system. Without an efficient blower fan, the system would struggle to maintain the desired temperature inside the home.