Heating & Cooling Made Simple — An Australian Homeowner's Guide (2026)

Heating and cooling can represent a significant share of household energy consumption. Choosing efficient equipment and improving the home's thermal performance can help reduce running costs while maintaining comfort.

Understanding heating and cooling

Common household systems include reverse-cycle air conditioners, ducted systems, evaporative cooling and other heating technologies.

The most suitable option depends on climate, building design, occupancy and household preferences.

Reverse-cycle air conditioning

Reverse-cycle systems transfer heat between indoor and outdoor environments.

Their efficiency depends on equipment performance, outdoor temperature, installation quality and operating settings.

Improving home efficiency

• Improve ceiling, wall and floor insulation where appropriate.
• Reduce unwanted air leakage.
• Use suitable window coverings and external shading.
• Maintain filters and equipment.
• Heat or cool occupied spaces rather than unnecessary areas.

Understanding running costs

Electricity consumption depends on system efficiency, operating hours, weather conditions and thermostat settings.

Compare equipment using appropriate energy performance information rather than purchase price alone.

Solar and smart controls

Solar generation, programmable controls and appropriate operating schedules may help reduce purchased electricity.

The actual savings depend on when energy is consumed and the household electricity tariff.

Read the illustrated guide

The accompanying PDF explains heating and cooling options, efficiency considerations, seasonal energy use and practical steps for improving household comfort.

Heating & Cooling Made Simple — An Australian Homeowner's Guide (2026) (PDF, 79 KB)