swimming pool heat pump air to water 1.ODM ... . Durable usa:15 years 4.Safe,energy-saving, Swimming pool heat pump air to water1.Durable usa:15 ... inside4) Advanced controlling: extremely easy to control. The swimming pool heat pump unit is in the room, because ... recent years, many families, schools, factories, hospitals, military, hotels, swimming pools and other units all over the county have been ...