Which component is a common part of heat pumps and air conditioners?

The component that is a common part of heat pumps and air conditioners is the compressor. The compressor is a critical component in both systems as it is responsible for circulating the refrigerant throughout the system and facilitating the heat exchange process.

In heat pumps, the compressor enables the system to reverse the refrigeration cycle, allowing it to absorb heat from outside (even in cooler temperatures) and transfer it indoors for heating purposes. In air conditioning systems, the compressor simply pumps refrigerant to absorb heat from the indoor air and expel it outside to cool the interior space.

While the outdoor fan, evaporator coil, and thermostat play important roles in both systems, the compressor specifically serves as the central device that enables both heat transfer for heating and cooling cycles. This shared functionality is key to understanding how both air conditioners and heat pumps operate effectively.