AIR SOURCE HEAT PUMP FOR COMMERCIAL 

Unlike a traditional hot water heater, a heat pump water heater uses electricity to move existing heat from one place to another instead of generating heat directly. Heat pumps are often used by homeowners to heat and cool homes, but they can also be used either as a stand-alone water heating system or in a combination system for both hot water and space conditioning.

A heat pump works nearly identically to a refrigerator , the key difference being that a refrigerator is keeping things cold while a heat pump is warming things up. In a refrigerator system, warm air inside is pulled across coils filled with cold refrigerant. The refrigerant picks up the heat from the air and is pumped through a compressor to outside (usually behind) the refrigerator where the pressure causes it to evaporate and release the heat back into the air. Continuing through the loop, the now cooler refrigerant condenses and returns to the inside of the fridge to begin the cycle anew.

A heat pump works exactly the same way but in reverse. A fan pulls the ambient, warm air from wherever the heat pump is located (a basement, utility room or garage), and blows it across a series of refrigerant-filled evaporator coils. The slightly warm refrigerant is pumped through a compressor to increase the pressure and temperature before being passed through condenser coils that are wrapped around, or pass inside of, a water tank. The hot refrigerant passes its heat to the water, cools off and then returns to the evaporator coils where it starts its journey again, collecting warm ambient air.

Heat pump water heaters must be installed in locations that can comfortably remain between 40ºand 90 ºFahrenheit year-round or they will not operate efficiently or at all. The good news is these types of water heaters use about a third of the electricity of standard water heaters because they take advantage of existing heat.