Hayward HeatPro® HP51202T In-Ground Variable Speed Heat and Cool Pump 120K BTU - Engineered to be just as high-performing and durable as our industry-leading HeatPro heat pump, the HeatPro VS heat and cool heat pump leverages variable-speed technology to maximize energy and cost savings while minimizing operational noise. As the first AHRI-certified inverter-driven variable-speed heat and cool heat pump in North America, it features a vertical discharge fan that allows for easy installation in any in-ground pool pad. With efficient operation in even the coldest ambient temperatures, it’s the smartest way for any pool owner to get more out of their investment.