How to Save Energy When Using Your Air Conditioner

Here are some easy-to-implement tips that will save energy when using your air conditioner and reduce your summer energy bills:

  • Install the air conditioner (or, if you’re using a split system, the outdoor unit) on the shady side of your home (or shade the air conditioner itself, if possible);
  • Make sure the air flow around the air conditioner isn't obstructed in any way by lawn furniture, flowers and shrubs;
  • The temperature of a cooled room in summer should be about 23-26°C (the humidity indoors will be low, so it will actually feel much cooler). The temperature should be checked after the air conditioner has been operating for 30 minutes;
  • Use a programmable thermostat and only cool your home when you need to;
  • When a hot day is expected, turn on the air conditioner early rather than waiting until your home becomes too warm (the air conditioner operates more efficiently when the outside air temperature is cooler);
  • Keep windows and doors closed when using refrigerant-based air conditioners;
  • Close west-facing drapes and curtains during hot summer afternoons. Consider installing some form of outdoor shading over your windows for maximum efficiency;
  • If your equipment is a ductless system and has adjustable louvres, adjust them towards the ceiling when cooling and towards the floor when heating (as cool air falls and hot air rises);
  • Keep your ceiling fans turned on to keep cool air moving;
  • Change or clean your system filter once per month;
  • Close registers in areas such as bathrooms, basements and entranceways. This will provide greater airflow in the other areas of your home.