How to Reduce Running Costs
Set the temperature to a more moderate amount. In summer the ideal temperature range is 24-26 degrees Celsius and 19-21 degrees Celsius in winter. In summer every degree cooler than the recommended range adds approximately 10% to the running costs and in winter every degree over the recommended range adds 10% as well so the less the compressor has to work, the lower your power bills will be.
Ensure that filters are cleaned regularly as per manufacturers recommendations. Keeping the filters clean will put less strain on the system and thus run more efficiently.
On ducted systems turn off unused zones. The smaller the area to moderate temperature – the lower the energy consumption.
If you have a room air conditioner or a wall hung split shut the doors to keep the desired air temperature within the room. Likewise when using ducted systems shut doors off to unused areas such as toilets, bathrooms, laundries etc.
Make use of natural heating and cooling. During winter open up curtains to let the sun do it’s bit towards heating your house and close them at night to help keep the warmth in. In summer keep the curtains drawn during times of direct sunlight and open windows at night if the temperature outside is cooler to allow the cooling breeze to keep the house cool at night.
Inverter systems work most efficiently when the desired temperature is reached. On a hot day, turn the system on early before the room gets hot to avoid having to run at full power to cool the room.
Ensure that the house is adequately insulated, if the old insulation has flattened out it is not much use at all and should be replaced. Invest in curtains for large windows or even roller blinds or shutters to keep direct sunlight off them.
Turn off unused appliances as these consume power and also increase the heat load which will make your air conditioner work harder.
Tips for ducted evaporative.
Ensure that there is adequate ventilation to allow the air to flow throughout the house. Opening windows and doors allows these systems to operate more effectively.
Planning to build
Intelligent house design – when planning to build keep in mind energy requirements. Large glass windows add significantly to the heat load and will require more air conditioning power – curtains are a must. For roofing remember that plain silvery galvanized iron is more likely to reflect the heat than dark colorbond which absorbs heat. If you have a roofspace, consider installing ventilation such as a spinner to reduce heat buildup in the roofspace. If space permits, larger eaves or a veranda will reduce heat loads by stopping direct sunlight. The more energy efficient your house is, the lower the energy requirements will be to keep the house at a comfortable temperature and the lower your energy bills will be.