19 November 2025
The Perfect Summer Temperature: Stay Cool and Keep Costs Down This Christmas

Christmas in Queensland means two things. 1. Long, hot days and 2. A busy house. The air conditioner becomes the hardest working appliance in the home, running almost around the clock to keep everyone comfortable. But with extra people, cooking heat, and school holidays stretching power bills, it’s important to set your A/C to the right temperature.
What’s the “Perfect” Air Conditioner Temperature?
Energy experts: including the Department of Energy and Climate (Energy.gov.au) recommend keeping your air conditioner set between 24°C and 26°C during summer for the best balance of comfort and efficiency.
For every degree cooler you set it, your air conditioner uses roughly 5–10% more electricity. That means a home running at 21°C all day could be spending 30–40% more on cooling than one set at 25°C.
💡 Fallon Tip: Start at 25°C and adjust slightly for comfort. Most Queenslanders find 24–25°C ideal for both comfort and cost efficiency, especially when paired with ceiling fans or zoned cooling.
Why It Matters More at Christmas
With more people at home, kids on school holidays, guests visiting, ovens and stoves running; your home naturally heats up faster. The temptation to crank the A/C lower is strong, but that extra demand can quickly push energy use (and costs) through the roof.
Keeping the temperature stable and zones balanced prevents your system from constantly cycling on and off, which is what drives up energy use.
Smart Ways to Stay Cool Without Blowing the Budget
- Use zoning or close doors to only cool the rooms being used.
- Set timers or use smart thermostats to automatically switch off when everyone’s asleep or out.
- Keep filters clean. Blocked filters reduce efficiency by up to 15%.
- Draw curtains and blinds to block direct sun during peak hours.
- Use ceiling fans as they help air circulate, allowing you to raise the set temperature by 1–2°C without losing comfort.
Why a Pre-Summer Service Saves More Than You Think
A well-maintained air conditioner cools faster and costs less to run. At Fallon Solutions, our licensed ARC technicians perform:
- Full system inspection and coil clean
- Airflow and duct testing
- Refrigerant and drain checks
- Smart thermostat calibration and filter cleaning
Every service is backed by our Safe Hands Promise and Limited Lifetime Labour Warranty, so you can relax knowing your system is summer-ready.
Quick Energy-Saving Snapshot
| Setting | Comfort Level | Estimated Energy Use |
| 21°C | Cold | Very High |
| 23°C | Cool | Moderate–High |
| 24–25°C | Comfortable | Optimal |
| 26°C+ | Warm | Lowest |
💡 Even a 1°C adjustment can save the average Queensland household $40–$80 per year in cooling costs and much more if you’re running multiple units.
Make This Christmas Comfortable & Cost-Efficient
Before the Christmas rush, make sure your system’s ready to handle the heat. Whether you need a ducted or split system clean and service, or a new install Fallon Solutions can help you stay cool and keep your energy bills under control.