What is the primary purpose of a heat pump?

The primary purpose of a heat pump is to transfer heat from one place to another. This transfer can occur in either direction, meaning that a heat pump can both heat and cool a space. In the heating mode, it extracts heat from the outside environment (even in cold temperatures) and delivers it indoors. Conversely, in cooling mode, it removes heat from the indoor space and releases it outside.

This method of heat transfer is efficient because it moves existing heat rather than generating new heat by burning fuel or consuming significant electricity, making it an effective solution for temperature control in residential and commercial buildings. Understanding the operation of a heat pump is crucial, especially in climates where efficient heating and cooling are necessary throughout the year. Other options such as creating electricity, filtering air, and providing lighting do not align with the core function of heat pumps, which is centered on heat transfer rather than generation or filtration.