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Anatomy Of A Heat Pump: How All Those Components Work Together To Keep Your Home Energy Efficient And Comfortable

Anatomy Of A Heat Pump: How All Those Components Work Together To Keep Your Home Energy Efficient And Comfortable

Heat pumps are the most complicated machines you will find in the average home. All of their parts are important for keeping your home heated and cooled efficiently. Here’s a look at the anatomy of a heat pump and how everything works together:


  • Indoor and outdoor coils: Like an air conditioner, heat pumps have two coils, but these coils are designed differently because they must be capable of both heating and cooling. This allows the heat pump to work forward and in reverse so it can warm up and cool off your home in different seasons.
  • Refrigerant tubing: This is what the refrigerant travels through as it passes between the coils, from inside the house to the outside and back again, absorbing or releasing heat as it expands and compresses.
  • Expansion valve: This measures the flow of refrigerant and helps the exact amount be delivered based on the heating and cooling demands of the moment. The pressure change that occurs when refrigerant passes through the expansion valve causes it to evaporate into a gas and release cold air into your home when the cooling cycle is on.
  • Compressor: This works opposite of the expansion valve to convert the gaseous refrigerant back into a liquid, which allows it to give off heat inside your home when the heating cycle is on.
  • Blower: This is the fan that forces heated or cooled air through the ductwork and into every room of your home. Variable-speed blowers are more efficient and make less noise than blowers that can only be run at full power.

These are the most essential parts of your heat pump. The machine’s complexity is demonstrated by all the smaller parts that make the system work as it should, including high- and low-pressure switches, vibration isolation plates, accumulators, mufflers, discharge temperature switches and an assortment of wiring and copper tubing.

For more information about buying a heat pump for your home, please contact Powers Heating and Air in Fayette or Coweta County today.

Our goal is to help educate our customers about energy and home comfort issues (specific to HVAC systems).  For more information about heat pumps and other HVAC topics, download our free Home Comfort Resource guide.

Powers Heating & Air serves Peachtree, GA and the surrounding areas.  Visit our website to see our special offers and get started today!     

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