A NSW Government website

Buying air conditioners

Cooling and heating a home can guzzle a lot of energy.

Choosing an energy efficient air conditioner cuts your electricity bills and is better for the environment.

Buying an energy efficient air conditioner

When you shop for your new air conditioner, look for the Energy Rating Labels.

They will have a heating and cooling label.

Air conditioner energy rating labels

On each label, there are a few things to look out for. Make sure you are comparing similar sized models.

Check the number of stars. The more stars, the more electricity you save.

Next, check the 2 boxes. The Capacity Output number indicates the amount of cooling and heating the air conditioner can produce. The Power Input number shows you how much power is needed to produce the heat or cooling shown in the Capacity Output box.

When comparing 2 air conditioners, if they have the same star rating and the same Capacity Output, choose the product with the lower Power Input number. It will be more efficient.

Consumer group CHOICE has a comprehensive guide on what to look out for in an air conditioner.

Save on heating and cooling

In summer, use fans rather than air conditioners as much possible.

In winter, a reverse-cycle air conditioner is the most efficient way to heat your home. They are still very energy intensive and you need to use them carefully.

Stop draughts by sealing gaps and use door snakes. Door snakes are an easy and affordable option to stop those cold breezes.

Energy rating calculator

Using the Energy Rating Calculator lets you compare the expected running costs of different models before you buy.


When replacing your air conditioner, consider recycling it. Search Recycling near you to find your closest recycling point.