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Reverse cycle air conditioning 

A reverse cycle air conditioner is used to cool your home in summers and warm it during the winters, all with one energy-efficient unit. This makes it one of the most efficient ways to heat and cool your home using electricity. Reverse cycle air conditioners use the refrigeration cycle to cool the home, and a reverse refrigeration cycle to warm it up, thus providing discreet, air-conditioned comfort in your home all year round. Converting existing ducted evaporative to reverse cycle air conditioning can be done. They can be either a split system or a ducted system.


The components of a reverse-cycle air conditioner are compressor, condenser coil, expansion joint, vent fan, the evaporator coils, filter, blower and a thermostat.

How reverse cycle air conditioning works

To heat the required environment, the reverse cycle system extracts heat from the outside air, even on cold nights, and draws it inside. A cold liquidated refrigerant is passed through an external coil, absorbing heat from the air.

The refrigerant is then pumped by a compressor, down through vents and into a condenser. As the refrigerant is compressed, it warms up.

The resultant hot air is then pushed by a fan/propeller, out into the room, thus warming the area. Once this is completed, the refrigerant flows through the evaporator to cool down which is located outside. The refrigerant is then pumped back into the condenser and the cycle repeats.

This process is reversed if cold air is to blown into your house, thus cooling you down on hot summer days.

Air conditioning diagram showing how it works

Some of its advantages:

It is one of the most effective climate control systems available giving you the ability to both cool or warm the air, offering you complete climate control.

  • Effective in non-arid and humid conditions
  • Reverse cycle air conditioning units are generally found to be much more efficient than plug-in portable electric heaters, which can sometimes be cheap to buy but costly to run. 
  • Reverse cycle air conditioning systems can also purify the air. Many models feature a built in air-purifying filter that traps fine airborne particles, some even decompose odors, and absorb and deactivate bacteria and viruses. Considering the fact that Australia has one of the highest rates of asthma in the world, as well as high levels of hay fever and other allergies, this is an important advantage of a reverse cycle system!
  • The cost of reverse cycle air conditioning is moderately low.
  • These systems produce only one third of the greenhouse gas emissions of standard electric heaters and are better and more environmental-friendlier.

Some of its disadvantages:

  • They produce a lot of noise. Some manufacturers are even investing in and developing technology to reduce the operating noise across the units.
  • They need to be installed by professionals. They do not have an easy set-up.
  • Higher running cost than evaporative air conditioning
  • The components need an air conditioning service regularly and filters need to be cleaned regularly

If you are looking for a quote for a ducted reverse cycle system in Perth. Get in touch and see how we can help you.