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Advice for your home

How to better use heating and cooling

Draught proofing your home

Draught proofing is one of the easiest DIYs one can do to fix your home of draughts and leaks, making your home more comfortable and energy efficient. Draughts are similar to ventilation, in that both let fresh air into your home. Good ventilation helps reduce condensation and damp and can help cool down a hot house. Draughts, on the other hand, are uncontrolled – they let too much cold air in and waste too much heat.

Draught proofing stops warm air from escaping your home in winter and hot air from entering in summer, saving you money and making your home more comfortable. Up to 25% of winter heat loss from existing houses is caused by air leakage (also known as draughts). In fact 9 out of 10 homes in Victoria have unwanted draughts!


Draughts come into your house through gaps and cracks around doors, windows, exhaust fans, fireplaces and so on. To draught-proof your home you will firstly need to find the draughts.

  • Look for obvious gaps
    Visible light under and around doors and windows is a good clue.
  • Listen for rattles or whistling
    Take time out, especially during strong winds, to listen for rattles and whistling around doors and windows.
  • Feel for moving air
    Feel around doors, windows, fireplaces, air outlets, vents, stairways, floorboards, exposed rafters and beams, built-in heaters and air conditioners, architraves and skirting boards.
  • Look for movement in curtains
    Movement in and around curtains can be an indicator of draughts.


Heating and Cooling

Use your system efficiently


Only heat & cool the areas you’re using

You may be heating or cooling rooms that aren’t used, or don’t need to be warm.

If you have a room or space heater limit which spaces you’re heating by closing doors or use the zoning configurations of a central heating system.

Set your thermostat efficiently

In the areas of the home you spend most your time, in winter set your thermostat between 18°C and 20°C. Every degree higher can increase your heating costs by around 15%. In summer, Set your air conditioner thermostat between 24°C and 26°C for living areas – every degree lower in summer will increase running costs by around 10%.

Your thermostat should be in the living areas where you spend most of your time.

Sounds simple enough, but dress according to the weather conditions outside – some of the younger members of the household may need reminding! If it’s cold, wear a jumper indoors.



Insulating your ceiling, walls and floor will help prevent the heat generated by your heater from escaping. It’s the most effective way to improve the energy performance and comfort of your home.

If your ceiling isn’t insulated, you should really consider getting it insulated. If there is easy access to in your roof space, it will be straightforward to have insulation installed and saves a lot of money in the long run.

Compared to a non-insulated home, a fully insulated home, can save 40–50% in heating costs.

Window Coverings

When your heater is running, close curtains and blinds to reduce heat loss through your windows. However, do try and let any winter sunshine in. This helps to warm up your home as a classic example of passive solar.

Close-fitting, heavy curtains with a box pelmet will significantly reduce the amount of heat loss through windows during winter months. This will reduce the amount of heat transfer loss.