A residential water source heat pump is a type of energy efficient device used to both heat and cool homes. It is widely considered to be one of the cleanest and most cost effective ways to maintain comfortable temperature control in a home. By using the natural temperature of groundwater, a residential water sourced heat pump extracts heat from the ground and transfers it inside the home creating warm temperatures during the colder months and extracting any heat gain that occurs during hotter summers, providing an energy efficient cooling option when required. This cycle of energy transfer is achieved through a combination of technology, including an outdoor compressor, tubing and fan-coil unit linked to a refrigerant system. In short, the residential water source heat pump offers homeowners an economical and environmentally friendly way to achieve climate comfort in their home all year round.