In HVAC systems, which component is primarily responsible for heat distribution?

In HVAC systems, the blower motor is primarily responsible for heat distribution. This component plays a crucial role by moving air through the ductwork and into the living spaces. When the heating system operates, the blower motor circulates warm air produced by the heat exchanger (or furnace) throughout the home, ensuring that every room receives adequate heating.

The cooling coil, on the other hand, is mainly associated with the cooling function of the HVAC system, facilitating the removal of heat from the air. The thermostat serves as a control device to regulate the temperature setting of the system but does not handle the distribution of heat. Lastly, the compressor is an essential part of the cooling process in air conditioning systems, compressing refrigerant to facilitate heat exchange but is not involved in distributing heat in heating applications. Hence, the blower motor is key to the effective distribution of heated air, making it the correct choice.