Extend the swimming season to all year with the best swimming pool heat pump in the world. If you are looking to save money on the cost of pool heating and reduce your ‘carbon footprint’, then you should consider a heat pump as your best option. Working like a refrigerator in reverse the heat pump is usually sited outside where it draws any heat from the air and transfers it into energy to heat the pool water. The higher the outside air temperature the more efficient the heat pump will be. It can easily be plumbed into existing pipework, it requires a hard standing area with at least 30cm clearance from any walls.