A pool heat pump is a device that transfers heat from one location to another. Heat pumps are commonly used to transfer heat from the ground or air to a swimming pool, spa, or hot tub.

How does a pool heat pump work?

A pool heat pump typically consists of a compressor, condenser, expansion valve, and evaporator. The compressor pumps refrigerant gas between the condenser and evaporator. The condenser transfers heat from the refrigerant gas to the pool water. The expansion valve regulates the flow of refrigerant gas.

The evaporator absorbs heat from the pool water and transfers it to the refrigerant gas. A pool heat pump can either be a standalone unit or part of a pool heating system. A standalone pool heat pump is typically used to supplement a solar pool heating system. A pool heating system that includes a pool heat pump can be used as the primary source of heat for a pool.