In Singapore’s hot and humid weather, almost every home relies on air conditioning for comfort. However, many people still run their aircon while their windows are open. At first, it may seem harmless. However, this habit actually wastes energy, increases your electricity bill, and wears out your aircon faster.
How Your Aircon Works
Your air conditioner cools your room by taking away heat and moisture from the air.
For it to work properly, the cool air needs to stay inside the room.
However, when you open your windows, warm and humid air from outside flows in.
This makes your aircon work harder and run longer to keep the room cool.
This applies to all types of units, including:
HDB aircon units
Condo aircon systems
Ductless AC setups in Singapore
Portable aircon models in Singapore
Why This Wastes Energy
1. The Aircon Runs Constantly
When warm air keeps entering, the aircon cannot reach the set temperature.
Therefore, the compressor works nonstop, consuming more power.
2. Your Electricity Bill Gets Higher
A hardworking aircon needs more electricity.
As a result, your SP bill will increase, especially if you run the aircon daily.
3. Your Aircon Wears Out Faster
Overworking leads to:
Weak cooling performance
Water leaks
Noise from fan motor
Gas leaks
Compressor failure
Eventually, you may need aircon repair Singapore, which can be costly.
Signs Your Aircon Is Struggling
You may notice:
Cooling takes longer than usual
Air feels warm or uneven
Higher electricity bills
Musty smell or mold odor
Water dripping or leaking
If so, aircon servicing Singapore is recommended.
How to Improve Cooling Efficiency
✅ Keep Windows and Doors Closed
This prevents cool air from escaping and hot air from entering.
✅ Use Curtains or Blinds
Sunlight increases heat.
Therefore, blocking it helps keep your room cooler.
✅ Set Temperature to 25°C–26°C
This is the energy-efficient aircon Singapore range.
✅ Use a Fan Along With the Aircon
A fan spreads cool air more evenly.
Consequently, your aircon doesn’t need to work as hard.
✅ Schedule Regular Aircon Maintenance
Clean and well-maintained units cool more efficiently and last longer.
Why This Matters in Singapore
Singapore is warm all year long.
Therefore, how we use our aircon can make a big difference in comfort and cost.
By simply keeping windows closed while the aircon is on, you:
Stay cooler faster
Use less electricity
Extend your aircon’s lifespan
It’s a small habit with big savings
Need Professional Aircon Servicing?
At Lion City Air Conditioner Services, we provide:
Aircon servicing Singapore
Aircon chemical wash
Aircon repair Singapore
Gas top-up
Deep cleaning
📞 Call / WhatsApp: +65 8818 5781
🌐 https://lioncityaircon.sg
We keep your aircon running smoothly, efficiently, and reliably.
