Tips 08/05/2025 22:38

Is it right to close the door tightly when using the air conditioner

1. Closing the Door Tightly

  • Mistake: While it’s important to keep the cool air in, sealing the room too tightly can actually make your AC work harder. If there’s no airflow or ventilation, the air inside can become too humid or warm, which increases the workload on the air conditioner. It will keep running longer and consume more electricity.

  • Tip: Make sure there’s proper ventilation. You can open a window slightly, or ensure the room is well-ventilated to maintain efficient airflow.

2. Setting the Temperature Too Low

  • Mistake: Setting your air conditioner to an extremely low temperature (e.g., 16-18°C) can overwork the unit, causing it to run longer and consume more energy. ACs are most efficient when set to around 24-26°C.

  • Tip: Adjust the temperature to a moderate setting, and use a fan to circulate the air if needed. This will allow the AC to cool the room efficiently without overworking itself.

3. Using the AC in an Open Space or Large Room

  • Mistake: Using the AC in large or open spaces that aren’t well-insulated can lead to energy waste. The AC has to work harder to cool the space, leading to higher electricity consumption.

  • Tip: Ensure the space is properly insulated. If you're cooling a large room, consider using multiple units or increasing the AC’s power capacity to match the space size.

4. Leaving Windows or Doors Open

  • Mistake: Running the AC while leaving windows or doors open lets warm air in, forcing the AC to cool the incoming hot air continuously. This causes the unit to work longer and use more electricity.

  • Tip: Always close windows and doors when the AC is running to maintain a consistent indoor temperature.

5. Neglecting Regular Maintenance

  • Mistake: Failing to clean or service your air conditioner regularly can lead to reduced efficiency. Dirty filters or coils cause the AC to work harder, leading to more energy consumption.

  • Tip: Clean the AC filters monthly and have the unit serviced at least once a year to ensure it's running at peak efficiency.

Bonus Tip:

  • Using an Old, Inefficient Model: Older air conditioning units are often less energy-efficient. If your unit is more than 10 years old, it might be time to consider replacing it with a newer, more energy-efficient model.


By avoiding these mistakes, you can make sure your air conditioner operates efficiently, keeping your electricity bill in check. Make adjustments to airflow, temperature, and maintenance for the best results!

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