Summer AC Myths That Don’t Actually Save Power on the Gold Coast
- Brett Wells
- 3 days ago
- 4 min read
When summer temperatures soar on the Gold Coast, air conditioning becomes essential for comfort. However, many homeowners unknowingly follow “energy-saving tips” that actually increase electricity bills and put extra strain on their systems. While some habits sound logical, they don’t always deliver real savings.
In this guide, the experts at EvidiAir Air Conditioning Gold Coast break down the most common summer air conditioning myths and explain what really helps you stay cool while keeping power costs under control.

Myth 1: “Setting It Colder Cools the Room Faster”
One of the biggest misconceptions is that setting your air conditioner to 16–18°C will cool your home faster.
The Reality
Air conditioners cool at a fixed rate. Lowering the temperature doesn’t speed up cooling - it simply forces the system to run longer. This leads to:
Higher electricity consumption
Increased wear on components
Unnecessary strain on the compressor
Expert Tip
For most Gold Coast homes, 24–26°C offers the best balance between comfort and energy efficiency.
Myth 2: Turning the System On and Off Saves Power
Some people switch their AC off whenever they leave the room, thinking it saves energy.
The Reality
Constant restarting causes the compressor to work harder each time. This “surge load” actually increases power usage.
Expert Tip
If you’ll be back within a short time, keep the unit running steadily at a moderate temperature.
Myth 3: Inverter Air Conditioners Can Run All Day for Cheap
Inverter systems are more efficient, but they are not magic.
The Reality
Running any air conditioner 24/7 during peak summer heat still consumes large amounts of electricity, even with inverter technology.
Expert Tip
Use timers, smart controls or raise temperatures in the evening when outdoor temperatures drop.
Myth 4: Fans Waste Electricity When Used with Air Conditioning
Many people avoid using fans with their AC, believing they increase power use.
The Reality
Fans use very little electricity and help circulate cool air more effectively. This improves comfort without lowering temperatures.
Expert Tip
Using a ceiling or pedestal fan allows you to increase your AC setting by 1–2°C and still feel cool, saving power long-term.
Myth 5: Eco and Sleep Modes Don’t Really Matter
Some homeowners ignore energy-saving modes, assuming they don’t make a difference.
The Reality
Eco and Sleep modes automatically adjust:
Temperature
Fan speed
Compressor output
This prevents overcooling, especially at night.
Expert Tip
Activate these modes whenever possible to reduce unnecessary energy use.
Myth 6: Bigger Air Conditioners Are Always Better
Installing a powerful system seems like a good idea — until it isn’t.
The Reality
Oversized units:
Cool rooms too quickly
Shut off prematurely
Restart frequently
Waste electricity
This short cycling reduces efficiency and shortens system lifespan.
Expert Tip
Always choose a system correctly sized for your room. EvidiAir provides professional load calculations for optimal performance.
Myth 7: Dirty Systems Don’t Affect Power Use
Many homeowners underestimate how much dirt impacts efficiency.
The Reality
Blocked filters and dirty coils restrict airflow. This forces the system to work harder to achieve the same temperature.
Common consequences include:
Higher power bills
Reduced cooling performance
Increased breakdown risk
Poor indoor air quality
Expert Tip
Regular servicing and professional hydro cleaning from EvidiAir can restore lost efficiency and reduce energy waste.
Why Many “Cheap Cleans” Don’t Save Power
Not all air conditioner cleans are equal. Some low-cost services are performed by untrained operators using poor-quality chemicals and surface-only methods.
These “quick cleans” often:
Miss internal coils and drain pans
Leave bacteria and mould behind
Damage components
Provide only short-term results
EvidiAir technicians are fully trained in professional AC maintenance and use approved products designed specifically for HVAC systems. This ensures long-term performance, safety and real energy savings.

EvidiAir’s Power-Saving Checklist for Summer
If your goal is to reduce electricity costs while staying comfortable, focus on proven habits:
✔ Set temperatures between 24–26°C
✔ Use fans to improve airflow
✔ Avoid constant on/off cycling
✔ Activate Eco and Sleep modes
✔ Keep doors and windows closed while cooling
✔ Service your system annually
✔ Book professional hydro cleans when needed
✔ Ensure correct system sizing
These habits outperform any “quick hack” found online.
Why Gold Coast Homeowners Trust EvidiAir
At EvidiAir Air Conditioning Gold Coast, we specialise in helping families and businesses maximise comfort while minimising running costs.
We provide:
Expert installations
Preventative maintenance
Professional hydro cleaning
Smart control upgrades
Honest energy-saving advice
Our goal isn’t just to cool your home, it’s to protect your system, your budget and your long-term comfort.
Final Thoughts: What Really Saves Power in Summer
Saving electricity isn’t about extreme temperatures or shortcuts. It’s about using your air conditioner properly, maintaining it professionally and avoiding common myths.
When used correctly, your system will:
Cool faster
Cost less
Last longer
Perform reliably in heatwaves
If you’d like personalised advice or an energy-efficiency check, speak to the team at EvidiAir today.
📞 Need Help Lowering Your Power Bills?
Book your professional AC service or efficiency check with EvidiAir Gold Coast’s trusted air conditioning specialists today.
📞 Call now: 0414753300
📍 Servicing: ALL Gold Coast and surroundings







