A heat pump is a device used to warm and sometimes also cool buildings by transferring thermal energy from a cooler space to a warmer space using the refrigeration cycle, being the opposite direction in which heat transfer would take place without the application of external power. Heat goes from hot to cold. Add Freon, see pictures below.

Major components of a heat pump system:

  • Outdoor unit with a coil that acts as a condenser in cooling mode and an evaporator in heating mode
  • Indoor unit that contains a coil (just like the outdoor unit) and a fan to move the air through your home
  • Refrigerant that absorbs and releases the heat as it circulates through the system
  • Compressor that pressurizes the refrigerant
  • Reversing valve that changes the direction of the refrigerant in the system, to enable the shift between heating and cooling
  • Expansion valve that regulates the flow of refrigerant through the system

Adding Freon to your Heat Pump