Air conditioning is hard to avoid during a Brisbane summer, but running it doesn't have to mean watching your electricity bill climb.
Before you start turning the system off altogether, try these simple ways to reduce unnecessary energy use.
1. Set a Sensible Temperature

If it's 32°C outside, setting your air conditioner to 18°C doesn't mean it will cool your home faster.
The Australian Government suggests around 25–27°C for cooling as a useful range.
Choose a temperature that's comfortable without making your system work harder than necessary.
2. Keep Your Filters Clean

Dirty filters can restrict airflow and make your air conditioner work harder.
Check your filters regularly, particularly when you're using your system frequently.
If your system still isn't cooling properly after cleaning the filters, it may need professional attention.
3. Use Zoning With Ducted Air Conditioning
Why are cool rooms nobody is using?
If your ducted system has zoning, use it to cool only the areas you need.
For example, you might cool the living areas during the day and the bedrooms at night. If you're installing a new ducted system, zoning is worth considering.
4. Keep Doors and Windows Closed
When your air conditioner is running, keep external doors and windows closed where possible.
Warm air entering the home makes your system work harder to maintain the temperature.
It's also worth checking for gaps around doors and windows that could allow conditioned air to escape.
5. Check Your Insulation
Good insulation helps keep heat out during Brisbane's warmer months.
If your home heats up quickly and your air conditioner seems to run constantly, your insulation could be part of the problem.
Improving your home's ability to retain cool air can reduce the workload on your air conditioner.
6. Make Sure Your System Is the Right Size
An air conditioner that's too small may struggle to keep up, while a system that's too large isn't necessarily more efficient.
The right size depends on your home's layout, insulation, windows, sunlight and other factors.
Professional sizing can help make sure you're not paying for more capacity than you need.
7. Don't Ignore Maintenance
If your air conditioner is running constantly, making unusual noises, producing strange smells or struggling to cool your home, don't ignore it.
A professional service can identify problems that may be affecting performance.
Sometimes a system doesn't need replacing — it simply needs the right maintenance.
Small Changes Can Make a Difference
Reducing your air conditioning bill isn't necessarily about using your system less.
Using a sensible temperature, keeping filters clean, using zoning and maintaining your system can all help reduce unnecessary energy use.
And if your current air conditioner is old or constantly struggling, it may be worth comparing the cost of continuing to run it with the long-term benefits of a more efficient system.
Need Help With Your Air Conditioning?
At Wahoo Air Conditioning, we help Brisbane homeowners stay comfortable while getting the most from their air conditioning systems. We supply, install, service and repair split-system and ducted air conditioning across Brisbane.
Whether you're looking to improve the performance of your existing system, need a professional service or are considering a new air conditioner, our team can help you find the right solution for your home.
Need help with your air conditioning? Contact Wahoo Air Conditioning to arrange a service or request a free onsite quote.
