Water to Water Heat Pumps may function as cooling systems by switching the refrigerant supply. The heat that the inside air absorbs is sent outside and rejected. The primary benefit of heat pump systems is without a doubt their dual-purpose functionality, particularly at mid- to lower latitudes where cooling is required. Water to Water Heat Pumps is very easy to install and simple to use. A common vapor-compression refrigeration cycle is used to transport the heat. This is very effective and safe to handle.