The table below provides approximate annual running costs for a range of types and sizes of different heating options.
|Room size||Heater types||Energy star rating||Annual energy cost||Annual GHG emissions (kg/yr)|
|Room / Space heating|
|Small room 12m2||Gas heater||$110||345|
|Portable electric heater||N/A||$330||1,585|
|Reverse-cycle air conditioner||$120||570|
|Medium room 30m2
|Electric panel, convection or fan heater||N/A||$810||3,880|
|Reverse-cycle air conditioner||$265||1,280|
|Large area 60m2||Gas heater||$525||1,690|
|Electric panel, convection or fan heater||N/A||$1,605||7,715|
|Reverse-cycle split system air conditioner (8kW)||$510||2,445|
|Small house 100m2||Gas ducted heating||Not zoned||$860||2,865|
|Gas hydronic||Not zoned||Standard||$785||2,535|
|Ducted reverse-cycle air conditioner||Not zoned||$840||4,040|
|Medium house 160m2||Gas ducted heating||Not zoned||$1,375||4,858|
|Gas hydronic||Not zoned||Standard||$1,255||4,050|
|Ducted reverse-cycle air conditioner
|Large house 220m2||Gas ducted heating||Not zoned||$1,895||6,300|
|Gas hydronic||Not zoned||Standard||$1,720||5,570|
|Ducted reverse-cycle air conditioner||Not zoned||$1,750||8,415|
* Approximate costs per year, based on an average (pre-2005) 2-star house in a Melbourne climate, heating all day on the weekend and in the morning and evening on weekdays. Based on electricity tariff of 27.5cents / kWh, and winter natural gas tariffs of 1.74 cents / MJ (gas ducted heating) and 2.05 cents / MJ (gas room heating). Actual costs for your house will depend on the area heated, how long you run the heating for, your thermostat settings, how well insulated the house is, your energy tariffs and your local climate. To estimate the running cost for a cold climate (for example, Ballarat) multiply these figures by 1.3 and for a warm climate (for example, Mildura) multiply these by 0.7. To estimate the running cost for a 5-star house simply mulitply these figures by 0.4, and for a 6-star house multiply these figures by 0.3.
Operate and maintain your heating system wisely and you can reduce your heating costs without sacrificing comfort.
Energy efficient appliances will save you money. The Smarter Choice retail program will help you make better choices when buying new appliances, hardware and lighting.
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