Water-source heat pump (WSHP) delivers high-performance heating and cooling with exceptional efficiency: up to 40 EER on select systems. Advanced technology makes a water-source heat pump easy to operate and maintain, resulting in optimal comfort and long-lasting durability. This broad range of products suit a variety of applications. Schools, office buildings, health care and rehabilitation facilities, condominiums and retirement facilities, these are the building types utilizing the energy conscious water-source design of the 6 through 25 ton horizontal and vertical water-source heat pump.