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.
How do I keep floor heating running costs down?
Most of the bill is decided before the pour. What keeps a heated floor cheap to run, and the settings that help once you move in.
Can rooftop solar power my floor heating?
Partly. Solar makes power at noon and you want heat at 7am and 7pm. How a heat pump, a warm floor and a tank bridge some of the gap.
Is an air-to-water heat pump worth it in Perth?
A dollar of power in, about three dollars of heat out. When an air-to-water heat pump pays its way in Perth, and when it doesn't.
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.
Can one heat pump do my heating and my hot water?
Yes, through a special indoor tank. Why two separate heat pumps usually cost less, and when one machine is worth it.
Are solar hot water panels worth adding to hydronic heating?
Solar hot water makes its heat in summer, when nobody needs heating. What works better, and the one case where it pays.
Will solar and a battery run my heat pump heating through a winter night?
Your panels can run the heat pump at midday. Winter nights are another story: what a battery covers, and what the floor stores.
Can I run my floor heating on cheap midday power?
A floor can soak up cheap midday power and give some back at dinner time. What it takes, and why the cold morning still runs on the grid.
What’s the best brand of floor heating – and does it matter?
There's no best brand. Where the brand matters, where it doesn't, and the questions that tell you more than a logo.
What’s the best way to heat and cool a Perth home? Your central heating and cooling options compared
Reverse cycle, gas, floor heating, radiators or geothermal? What each does well in a Perth home, and why the house decides.
What size radiator do I need for each room?
Not from the floor area. What decides each panel's size, and why a radiator sized off a chart leaves the back bedroom cold in July.
Underfloor heating regulations: what codes and standards apply in WA?
A heated slab is poured thicker, with heavier mesh and R1.0 insulation down its edge. Both rules, the WA catch and what the code leaves out.