Heat Pump Water Heaters

  April 10, 2023      Bradford White

Heat pump water heaters use electricity to move ambient air from one place to another instead of generating heat directly, this takes advantage of the principle that it is more efficient to move heat from ambient air rather than create it. There are many other household appliances that already use heat pump technology such as air conditioners, refrigerators, dehumidifiers.

How a heat pump water heater operates:

  1. During heat pump operation, a fan draws ambient air (35°F or higher) to the water heater.
  2. The evaporator then absorbs this heat from the ambient air.
  3. The refrigerant will then pass through the compressor and increase in temperature and pressure.
  4. The heated refrigerant then travels through a coil that fully surrounds the water storage tank. This heat is directly absorbed by the steel tank and transferred to the water in the tank.
  5. In Hybrid mode, the heating elements may be used to ensure the same fast recovery as a standard electric water heater

Don’t forget

  • Low operating costs = savings on utility bills
  • Only ENERGY STAR® rated electric waterheater
  • If the room is smaller than 700cu.ft. install a louvered door or similar vent / ducting kit
  • Requires a drain for condensate hose