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Best temperature setting for your air conditioner during summer

The blazing summer months are a good time to go out and enjoy the summer sun and catch some nourishing rays. The outdoors are a great place to be during the summer but staying at home is a completely different ball game.

The summer heat can be difficult to manage when indoors, especially if your home has poor ventilation. Luckily, the trusty air conditioner can help keep temperatures nice and frosty, even during the harshest of summers.

Simply turning the air conditioner’s temperature setting to the usual 18-21 degrees Celsius, however, might not be the right temperature for your home; there are a few other things that you need to consider before deciding what temperature setting is best for the summer.

In this post, we’ll take a look at how you can get the optimal performance from your air conditioner and which temperature setting is ideal for the summer.


The capacity of the air conditioner

Naturally, people tend to assume that having a high – capacity air conditioner is better – this is not always true and you may end up with hefty electricity bills.

If an air conditioner is too powerful, it’ll cool down the room too quickly, this will cause it to turn off and on frequently; this cycle is very inefficient and could lead to frequent breakdowns.

On the other hand, when you install an air conditioner that has a lower capacity than what’s required for your home, it’ll work non-stop trying to keep your home cool but it won’t be strong enough to cool your home properly, leaving your home relatively warm and your electricity bills high.

As you can see, having an air conditioner of the perfect capacity for your home is important. Here are a few things you should consider before installing your air conditioner:

Room sizes

A single air conditioner won’t be enough to cool your home, though this will depend on the size of your home. Even if you’re going to install an air conditioner in every room, you’ll need to be mindful of the rooms’ sizes.

Before you go shopping for a new air conditioner, measure the height, length and width of your rooms and give this data to your air con supplier.


How well insulated your rooms are will play a big role in determining the size of your air conditioner. For instance, when a home is well insulated, it can trap heat and cold air better, requiring only a low-capacity air conditioner to keep it cool.

Location of the room

If the room you’re going to install the air conditioner faces north or west, chances are it can get very hot during the summer. For rooms like this, you may need to install a high-capacity conditioner to keep the room cool.

The way the air conditioner is used

If you want your air conditioner to work optimally during the summer, you’ll need to use it the right way.

Here are some ways you can use your air conditioner very efficiently:

Use the timer

There’s no point running your air conditioner when no one is home, you’ll just be overworking the machine and pushing up your electricity costs. Programme the air conditioner to only start up at times when the home is occupied, like after work or during the weekend.

Clean out the filters

The air filters of your air can get very dirty and will require cleaning every two weeks for it to work its best. Switch the air conditioner off and remove the filter, then clean it with soap and water. You can even use a vacuum cleaner if there’s not too much dust.

Switch on dehumidifier mode

High humidity is a frequent culprit of the summer heat’s discomfort. Simply turn on the dehumidifier mode of your air conditioner, to bring humidity levels and temperatures down.

Best temperature setting

Once you’ve got an appropriately-sized air conditioner installed and you know how to use it efficiently, you can set the perfect temperature for the summer.

Of course, the perfect temperature setting isn’t just about cooling down your home but also keeping your electricity bills at a reasonable level.

Australia has a very diverse climate, so this ideal temperature will vary. Below are the best temperature settings for each region:

  • North Queensland, North Western Australia & Northern Territory: 21-23 degrees Celsius
  • Central Australia: 21-23 degrees Celsius
  • South Australia: 24-25 degrees Celsius
  • Southwestern area of Western Australia: 23-24 degrees Celsius
  • South East New South Wales, North East Victoria and Australian Capital Territory: 22-24 degrees Celsius

Keep your home cool and electricity bills low

A right-sized air conditioner used at the ideal temperature setting can work efficiently for a long time without needing maintenance, saving you money.

At Alliance Climate Control, we provide air conditioning maintenance to keep your air conditioning in great shape, so that you can stay cool for the summer.

Call us on (02) 8061 5023 and speak to our air conditioning specialists today.

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