FAQs & Tips

Here are the answers to some frequently asked questions about air conditioning.

Click here for useful tips for keeping your home energy efficient whilst saving on your power bill.

If you have a question that is not answered here, don't hesitate to contact us today.
Air Condition Remote  — Grafton Air in Grafton, NSW
House Building Plan  — Grafton Air in Grafton, NSW
What does 'reverse cycle' and 'split system' mean?
A split system air conditioner comprises two pieces: the outdoor unit, which sits outside your home, and the indoor unit, commonly wall-mounted inside the home. Reverse cycle means the system can provide both heating and cooling. Multi-head systems, ceiling cassettes, under ceiling units and cooling-only models are available.
What is back-to-back installation?
Do I need ducted air conditioning?
How is airflow controlled?
What is an inverter air-conditioning system?
What size unit do I need?
What if I am building a new home or undergoing renovations?
What is the operating cost?
How long does it take to install a new air conditioning unit?
What maintenance is required for my air-conditioning unit?
What brands of equipment do you service?
Energy Saving Tips  — Grafton Air in Grafton, NSW

Energy Saving Tips


General Tips

  • Upgrade your air-conditioning system. Replacing air conditioners that are more than 10 years old can save 20 to 40 per cent of your annual heating and cooling energy costs. That's nearly 700 kg of carbon pollution saved.
  • Shut doors to close off rooms not in use.
  • Keep the filters clean.
  • Annual maintenance will keep your system running at peak efficiency.

Summer Tips


  • Install ceiling insulation.
  • Make sure your roof space is well ventilated - during summer your roof space can reach temperatures over 50°C.
  • Turn your air conditioner on early during very hot days, rather than waiting until the room gets too hot.
  • Close your blinds and curtains during the day to keep heat out.
  • Add a boxed pelmet over existing curtains, and close the gaps at the bottom and sides of the curtains to help reduce the heat coming through the windows. Consider that external window shading is more efficient than internal curtains and blinds. Window tinting also works well.
  • When you first enter a hot house, open doors and windows to flush out the hot air before switching on your air conditioner.
  • If practical, cool your home at night by opening your windows.
  • Set the temperature as high as you feel comfortable, generally 24°C or above.
  • Each 1°C decrease can add as much as 10% to your cooling costs.
Summer Tips  — Grafton Air in Grafton, NSW
Winter Tips  — Grafton Air in Grafton, NSW

Winter Tips


  • Set the heating temperature as low as you comfortably can, which is between 18-21°C for most people. It is important to remember that each 1°C increase can add up to 10% to your heating costs.
  • Don't start your unit on a high temperature - it's more efficient to turn it on earlier at 21°C and let it slowly warm the room.
  • At night, close blinds or curtains to reduce heat loss.
  • On sunny days, open your blinds and curtains to allow warm sunlight in, especially north- facing windows.
  • Install draught-stoppers.
  • Wear appropriate clothing so you don't have to set your temperature higher than needed. Putting on a jumper costs far less than heating your home.
  • If you have them, use ceiling fans at low speed or on winter setting to circulate warm air.