Practical advice on heating and cooling your Perth home
Straight answers from the engineers who design and install the systems. Floor heating, radiators, heat pumps, geothermal and heat recovery.
Does geothermal work in a hot climate like Perth’s?
Summer is where the ground earns its keep. Why cooling into the ground beats cooling into hot air, and the one job where the air wins.
Geothermal or hydronic heating? Why it isn’t either-or
Geothermal is where the heat comes from, hydronic is how it reaches you. Why you choose the floor first and the heat source second.
What types of geothermal system are there?
Trenches, bores or groundwater: the ways a geothermal heat pump reaches the ground, and which one suits a Perth block.
Can I heat and cool my home with bore water? Open loop and closed loop geothermal explained
Perth sits on 20 degree groundwater. How an open loop uses it, how a closed loop differs, and when air-source is the better buy.
Can my home’s heat pump or geothermal system heat the pool and spa too?
The heat pump that warms your floors sits idle all summer. When it should heat the pool too, and when geothermal pays for it.
What approvals and safety rules apply to geothermal heating and cooling in WA?
Bore water needs a licence and a return bore. The approvals, the real safety risks, and what to sort out before the drill arrives.
Is geothermal worth it, or will an air-source heat pump do?
For most Perth homes, an air-source heat pump will do. The few cases where the ground is worth drilling for, and the many where it isn't.
What geothermal heating costs in Australia, and when it pays off
The heat pump is about 20% dearer and the bores add $30,000 to $150,000. When the ground earns that back, and when it never will.
Are there rebates for heat pumps or geothermal in WA?
Nothing for a heating heat pump or geothermal, as of October 2026. What you can claim on hot water, batteries and loans.