Choose the right air conditioner

December 2014

Buying the right sized air conditioner for the area it’s cooling and using it wisely, are the best two things to consider when trying to keep cool efficiently this summer.

A unit which is either loo large or too small for the space you are trying to cool can add more than $250 to your bill a year.

To help find the right size air conditioner as a rough guide, multiply the number of square metres you want to cool by 125Watts and compare this to the air conditioner’s cooling capacity on the energy star label.

The most popular and affordable models are split-system reverse cycle units, which can also be used to keep you warm in winter.

Larger split-system models can be used to cool a large living area and can cost around 60 cents an hour to run and add around $200 to your summer electricity bill.

Some of the new smaller air conditioners used to cool a small room or bedroom are super efficient and can cost as little as 15 cents an hour to run adding around $50 to your summer bills.

New air conditioners are becoming more efficient and the star rating system helps you choose the most efficient model for the size you need.

Remember each extra star will reduce running costs by around 10% per year.

Some models of new air conditioners also come with in-built technology that allows power-saving modes to be activated remotely, also known as demand response modes. It means you may be able to take part in future programs, which could save you money. Look out for the tick box details on the bottom of the energy label.

One of the easiest ways to save money on air conditioner usage is to set the right temperature. Each degree of cooling can add 10% to your running costs. So set it between 23 and 26 degrees and close doors and windows to keep the cool air in.

For more tips check out Ausgrid’s summer cooling guide.