Information & Links
Comparative Running Costs (Data supplied by Sustainable Energy Authority)
The actual running costs of a system will depend on a range of variables. These include:
- the size of your heater
- whether it is sized correctly for the area you are trying to heat
- operating temperature
- hours of operation
- the energy efficiency and size of your home
- how you use your heating system
Figures based on:
- NatHERS Thermal Simulation Program for a typical new home with R2.5ceiling insulation and R1.0 wall insulation in Melbourne
- 24 hours heating to 18°C for in-slab heating; 8 hours heating to 21°C for all others
- Tariffs current at April 2001-GD 13.0c/kWh, natural gas 0.95c/MJ, LPG 70.0c/lt, wood $175/tonne. Supply charges not included.
- Costs for reverse cycle air-conditioners based on average GD electricity tariff.
- For an energy smart home reduce costs by 30%
- For every 1°C increase in operating temperature, increase costs by 15%; for 24 hour heating, double these costs (except in-slab)
Hints for Efficient Operation of Your Climate Control System
- Ensure your system is sized correctly for the area you want to heat or cool. Shut the doors to other rooms if you don't have ducting.
- Ensure the system you use is suitable for the climate (e.g. evaporative cooling is not likely to work very well in the tropics!)
- Keep the thermostat at the temperature you want the room to be. Turning it up higher for heating or down lower for cooling will not make the room heat or cool any quicker but it will make the system work harder and consume more energy.
- On very cold nights, leave a heater on a low setting overnight rather than turning it off. In the morning it will not have to work so hard to bring the room up to the required temperature.
- Insulate walls and ceilings and use window coverings with backings or 3 pass rating.
- Check the Star rating of the appliance you are installing. The higher the star rating the lower your running costs will be for a comparable appliance.
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