HVAC system helps consumers achieve the desired temperature at home. It’s very useful for heating and cooling purposes. However, the HVAC system is one of the energy sucker appliances. It consumes much more energy that may give costly bills if not used properly.
Simple changes in air conditioning habits can save energy and money. Let’s see the ideal temperature on using HVAC systems and how much air conditioner affects energy costs.
A typical air conditioner should be set to 25 to 27 degrees during summer and around 18 to 20 degrees in winter. These are advisable temperature settings for customers who live in a moderate climate.
Here are standard temperature settings of an air conditioner per state.
|State||Summer (Cooling)||Winter (Heating)|
21° – 23°
|SA||24° – 25°||19° – 20°|
|Southwest WA||23° – 24°||18°|
26° – 27°
Set air conditioner temperature a little lower for those who live in warmer places. In cooler areas, it’s advisable to set the temperature a bit higher to feel more comfortable.
Related Article: Air Conditioner Reviews and Ratings
Air Conditioner Hourly Cost
Air conditioner consumes more power when it works harder or longer. Based on the research of Ergon Energy, on every 1° cooler in the summer adds around 10% on electricity costs.
Assumes 28.479 c/kWh electricity usage rate.
Air Conditioner And Room Size
Consumers need to ensure that air conditioner capacity is appropriate for the size of the room. If not, this might give an uncomfortable feeling. For example; if the room is large and the air conditioner is designed for small rooms, it will be less effective. Also, it needs to work harder and consume more power.
Below is an approximate guide to determine what HVAC capacity is ideal in given room size.
|Room Size (m2)||Cooling Capacity||Heating Capacity|
|3m x 3m = 9m2||2.5KW||3.2KW|
|5m x 5m = 25m2||3.5KW – 3.7KW||4.3KW|
|5.5m X 5.5m = 30m2||3.5KW – 3.7KW||5KW – 6KW|
|6.3m x 6.3m = 40m2||5KW – 6KW||6KW – 7.2KW|
|6.7m x 6.7m = 45m2||6KW – 7.2KW||7.1KW – 8KW|
|7.1m x 7.1m = 50m2||7.1KW – 8KW||8KW – 9KW|
|7.7m x 7.7m = 55m2||8KW – 9KW||9.2KW – 10KW|