What is the primary function of a heat pump?

The primary function of a heat pump is to move heat from one location to another. This process involves transferring thermal energy rather than generating heat through combustion or other means. Heat pumps can pull heat from the outside air, ground, or water and transfer it indoors for heating purposes in the winter. Conversely, during warmer months, they can remove heat from indoors and release it outside to provide cooling.

This mechanism makes heat pumps versatile and energy-efficient systems, as they primarily rely on existing thermal energy rather than producing heat through fuel burning. In contrast, options focusing on generating heat through combustion or extracting heat specifically from the ground highlight specific applications or methods rather than the broader functionality of heat pumps. Ventilation for indoor air quality refers to a different aspect of HVAC systems, which does not pertain to the primary function of a heat pump itself.