REVERSE CYCLE
Why are they called “Reverse Cycle”?In the cooling mode, reverse cycle air conditioners (RCAC) move heat from inside a room to theoutdoors. In the heating cycle this process is reversed.

Why are they so efficient?The reason why reverse cycle air conditioners are so efficient is that unlike ordinary electricheaters, which convert electricity into heat, they do not create heat in winter, they extractthe existing heat in the air outside your home and exchange it for the cold air inside, while inSummer they do the reverse. While every other form of heating uses at least as much energy asit produce as heat, reverse cycle air conditioning units produce 2.5 to 3 times more energy thanthey use. So not only does a RCAC unit help you save money on your energy bill, you are alsohelping the environment by using less energy as well as reducing carbon dioxide emissions.
| Heating Appliance Appliance Efficiency | (Typical) |
| Reverse Cycle | 270% |
| Under Floor Heating (Electricity) | 100% |
| Kerosene | 90% |
| Natural Gas - unflued | 90% |
| Natural Gas - flued | 77% |
| Wood -airtight slow combustion stove | 65% |
| Wood - open fire | 10% |
Reproduced from the Department of Primary Industries and Energy’s NetEnergy websitewww.dpie.gov.au/netenergy.