Many air conditioners include a heater setting to provide warmth during colder seasons but how can we use this most efficiently to ensure optimal comfort and energy conservation. In this guide, we will explore some key tips and strategies to help you make the most of the heater setting on your air conditioner.

The temperature trap
When using the heater setting on your air conditioner, it’s crucial to select an appropriate temperature. Aim for a comfortable temperature range, typically between 18-22 degrees Celsius (64-72 degrees Fahrenheit). This will ensure a cozy environment while preventing excessive energy consumption.

Clock In
Take advantage of the timer function available on many air conditioner models. Set the timer to turn on the heater before you wake up or return home, ensuring you step into a warm space without leaving it running unnecessarily. Similarly, you can set it to turn off before you leave or go to bed, preventing unnecessary energy usage.

Seal the deal
Check for any air leaks around windows, doors, or vents and seal them using weatherstripping or caulking. By preventing drafts, you can minimize heat loss and reduce the strain on your air conditioner. Proper insulation helps retain heat and prevents it from escaping, which is especially important when using the heater setting. Make sure your home or classroom is well-insulated by adding insulation to walls, attics, and floors. Insulating windows with thermal curtains or window films can also contribute to energy efficiency.

Zone in
If your air conditioner supports zoning or individual controls, make use of this feature. It allows you to adjust the temperature in different areas of your home independently. By heating only the rooms you’re actively using, you can save energy and avoid overheating unoccupied spaces.

Keep it clean
Proper maintenance of your air conditioner is crucial for its efficient operation. Clean or replace air filters regularly to ensure smooth airflow. Clogged filters restrict airflow and force the unit to work harder, reducing its efficiency. Additionally, schedule professional maintenance at least once a year to clean the system, check for any issues, and optimize its performance.

Act natural
During daylight hours, take advantage of natural heat sources to reduce your reliance on the air conditioner’s heater setting. Open curtains or blinds on sun-facing windows to allow sunlight to enter and warm up the space. Conversely, close curtains or blinds during the night to insulate against cold outdoor temperatures.

For more advice check our previously posted ‘Winter Tips: Stay warm while being energy efficient‘. If you have any other clever winter tips, we’d love to hear from you! Please send recommendations or feedback to