New Hayward HeatPro 125K BTU Heat Pump, Model: HP21254T. The Hayward HeatPro Series Heat Pumps from Hayward = High performance, energy-efficient HeatPro heat pumps quietly and economically maintain the ideal water temperature at all times. HeatPro features the industry's only standard Ultra Gold corrosion resistant evaporator fin which provides extreme durability, especially in coastal environments. It's compact design allows for easy installation and service on new or existing pools.