As you can see from our blog on how to read an energy label, a split system air conditioner will ALWAYS output more energy than it consumes.
So how do we work out exactly how efficient a split system is, so we can compare products?
Well, there are two calculations:
- This calculation in cooling mode is called EER (Energy Efficiency Ratio)
- This calculation in heating mode is called COP (Coefficient of performance).
How to calculate EER (Cooling efficiency)
- In cooling mode, the air conditioner consumes 1.58kW and outputs 5.2kW.
- Divide the output (5.2kW) by the input (1.58kW).
- Therefore this split systems EER is: 3.41 to 1.
- This means the air conditioner will output 3.41 times as much energy as it consumes!
- In heating mode, the air conditioner consumes 1.63kW and outputs 6.7kW.
- Divide the output (6.7kW) by the input (1.63kW).
- Therefore this split systems COP is: 4.1 to 1.
- This means the air conditioner will output 4.1 times as much energy as it consumes!
The EER and COP readings are the easiest and fastest way for you to compare energy efficiency between air conditioners. Most reputable split system manufacturers include the EER and COP readings on their promotional material. Grab the most information you can get, and compare COP and EER's between products.
Conclusion
This co-efficiency is typical of most split system air conditioners and is the reason why split system air conditioning is one of the most energy efficient forms of heating and cooling available on the market today.
Resources
- Compare air conditioners through the Australian Government website
- Browse the Australian Governments' Energy Rating website
- Read about the Minimum Energy Perfomance Standards (MEPS)
At Ezy Air, we strive to provide our customers with the most relevant information to assist them to make the right decision. If you would like more information, please contact us by phone: 1300 EZY AIR (1300 399 247) or via our contact page!
