Pool Heat Pump Prices in Australia: A 2026 Buyer's Guide
Real prices off our own shelf, not a vague "from" number designed to get you on the phone.
Not sure what size you need? Try our free pool heat pump calculator. Enter your pool size and postcode and it shows the right kW, running costs and the models that fit.
A pool heat pump in Australia costs between $1,950 and $11,990 for the unit, and most people spend $3,500 to $5,500. That buys a heat pump in the 17kW to 24kW range, which covers the standard Australian family pool. Small plunge pools and spas start under $3,000. Big lap pools and cold southern climates push past $9,000. Every figure on this page is a live retail price including GST, not a guess.
Now the useful part, which is why the numbers spread so far.
Pool heat pump prices by band
Pool heat pumps sit in five rough price bands, from about $2,000 for a small on-off unit to about $12,000 for a large full DC inverter. The band you land in is set by two things: how many kilowatts you need, and how efficient and quiet you want those kilowatts to be.
What each price band buys
| Price band | What you get | Example model |
|---|---|---|
| $1,950 to $2,900 | 7.5kW to 9kW. Spas, plunge pools, small courtyard pools. | Fairland Aqua X Essential 7.5kW, $1,950 |
| $3,000 to $4,000 | 11kW to 20kW. The value sweet spot, where most sales happen. | Midea M Series 20kW with WiFi, $3,799 |
| $4,100 to $5,500 | 16kW to 24kW. Better build, better inverters, longer warranties. | Guardian Eco Pro 20kW, $4,940 |
| $5,500 to $8,000 | 20kW to 28kW. Premium full DC inverter, very quiet, high COP. | Guardian Lux-V 20kW, $7,990 |
| $8,000 to $12,000 | 28kW to 35kW. Large pools, lap pools, long seasons. | Guardian Lux-V 32kW, $11,990 |
Prices current as of August 2026, AUD including GST. Unit only, not installed.
Pool heat pump prices by pool size
The price you pay tracks your pool volume more than anything else, because volume sets the kilowatts and kilowatts set the cost. Work out your litres first, then read across.
Pool volume, heat pump size and price
| Pool volume | Heat pump size | Typical price | Example |
|---|---|---|---|
| Up to 20,000L | 7.5kW to 11kW | $1,950 to $3,150 | Fairland Aqua X Essential 7.5kW, $1,950 |
| 20,000 to 30,000L | 13kW to 16kW | $3,200 to $5,650 | SensaHeat ES Series 13kW, $3,200 |
| 30,000 to 40,000L | 17kW to 21kW | $3,799 to $7,990 | Midea M Series 20kW, $3,799 |
| 40,000 to 55,000L | 24kW to 28kW | $5,500 to $10,490 | SensaHeat ES Series 24kW, $5,500 |
| 55,000L and up | 30kW to 35kW | $7,410 to $11,990 | Guardian Eco Pro 35kW, $9,451 |
Length by width by average depth by 1,000 gives you litres. If you want the sizing logic in full, including what a cover and a cold climate do to it, read what size pool heat pump do I need.
Why two 20kW heat pumps can be $4,000 apart
Two heat pumps of the same kilowatt rating differ in price because of the compressor technology, the warranty and the noise level, not the heat output. Our own 20kW shelf proves it: the Midea M Series 20kW is $3,799, the Guardian Eco Pro 20kW is $4,940, the Guardian Platinum 20kW is $6,290 and the Guardian Lux-V 20kW is $7,990. Same water temperature, four very different machines.
Inverter versus on-off
A full DC inverter costs more up front and less to run, and that gap is the single biggest reason for the price spread. An on-off unit runs flat out or not at all. An inverter throttles the compressor down to a low hum once the pool is at temperature, which cuts the power draw and the noise at the same time. The premium is real money, roughly $2,000 to $4,000 on a 20kW, and it comes back over years rather than months. Our pool heat pump running costs guide has the arithmetic.
Noise, and where the unit sits
Quiet costs money, and it matters most when the heat pump sits under a bedroom window. Top discharge inverter models push the air upward instead of sideways and run far quieter than a budget side-discharge unit, which is a chunk of why the Lux-V range prices where it does. If your equipment pad is down the side of the house away from everything, you can save real money by not paying for silence you will never notice.
Warranty and who is behind it
Warranty length and local support are baked into the price, and they are worth checking before you chase the cheapest sticker. A heat pump is a ten year purchase living outdoors in Australian weather. Confirm the warranty terms and who services the unit before you buy, on any brand, including ours.
What you pay beyond the price of the unit
Budget for electrical and plumbing work on top of the heat pump price, because the unit alone does not get you swimming. A pool heat pump is an electrical appliance that must be connected by a licensed electrician, usually on its own circuit from the switchboard.
The three costs that catch people out:
- Electrical. A dedicated circuit run from the switchboard to the pool equipment area. The bill depends on the distance, the switchboard's spare capacity and whether it needs upgrading. Get a quote from your electrician before you buy, not after.
- The base. The unit needs a level, solid pad with drainage and clearance around it for airflow. A concrete pad or purpose made feet, not a patch of lawn.
- Plumbing. The heat pump plumbs into the return line after the filter. If your equipment set is tidy and close, this is a small job. If it is not, it is not.
Delivery is the fourth line item and it is straightforward: these units are heavy, so freight to a regional address costs more than freight to a capital city.
The cheapest pool heat pumps we sell
The cheapest pool heat pump in our range is the Fairland Aqua X Essential 7.5kW at $1,950, which is a full inverter, not a stripped down on-off unit. For a small pool that is genuinely good buying.
Above that, the Spanet 9.0kW SV Series at $2,850 is the pick for a spa, and the SensaHeat ES Series 13kW at $3,200 handles a small family pool. The best value in the whole catalogue by dollars per kilowatt is the Midea 20kW at $3,799, which is why it outsells everything else and why it has its own Midea 20kW page.
Cheap has a floor, though. Anything advertised well under $1,900 for a pool sized unit is either badly undersized for what it claims or has no support behind it in Australia. Both cost more than they save.
Where the money is actually well spent
Spend on the right size first, a cover second and the inverter third, in that order. Sizing down to save $600 is the classic mistake: an undersized heat pump never reaches temperature on a cold snap, so it runs around the clock and you pay for it every month for a decade. A pool cover costs a fraction of a heat pump and keeps more heat in the water than any upgrade on the spec sheet. The inverter premium is worth it if you run a long season or the unit sits near the house.
Browse the full range in Heat Pumps for Pools and Spas, or the wider Heat Pumps collection.
Frequently asked questions
How much does a pool heat pump cost in Australia?
A pool heat pump costs $1,950 to $11,990 in Australia for the unit, with most buyers spending $3,500 to $5,500. The price is driven by the kilowatt output your pool volume needs, then by whether the unit is a full DC inverter. Electrical and plumbing installation is extra and is quoted by your own licensed tradespeople. Prices current as of August 2026, including GST.
What is the cheapest pool heat pump in Australia?
The cheapest pool heat pump in the Waternex range is the Fairland Aqua X Essential 7.5kW at $1,950, and it is a full inverter rather than a basic on-off unit. It suits spas, plunge pools and small courtyard pools up to about 20,000 litres. Anything cheaper on the market is usually undersized or unsupported locally.
How much is a 20kW pool heat pump?
A 20kW pool heat pump ranges from $3,799 to $7,990 depending on the model. The Midea M Series 20kW is $3,799, the Guardian Eco Pro 20kW is $4,940, the Guardian Platinum 20kW is $6,290 and the Guardian Lux-V 20kW full DC inverter is $7,990. All four heat the same water. The difference is efficiency, noise and build.
Is a more expensive pool heat pump cheaper to run?
Yes, a full DC inverter model is meaningfully cheaper to run than a budget on-off unit of the same kilowatt rating. It modulates the compressor instead of cycling hard on and off, so it draws less power holding temperature. Whether the extra $2,000 to $4,000 up front pays back depends on how long a season you swim and what you pay per kilowatt hour.
Does the price include installation?
No, the prices on this page are for the heat pump unit only. A pool heat pump must be connected by a licensed electrician, needs a level base with airflow clearance, and plumbs into the filtration return line. Get those quoted locally before you order so there are no surprises.
Do pool heat pump prices change through the year?
Yes, pricing and stock both move with the season, and spring is when demand spikes in Australia. Buying in the off season is usually easier on both the wallet and the lead time. Check the current price on the product page, since the figures in this guide are a snapshot from August 2026.
Want the exact price for your pool?
Tell us your pool volume, your postcode, whether the pool is covered and how long a season you want. We will come back with the right model and the real price, no runaround.
Get a pool heating quote in minutes
Shop all pool and spa heat pumps
This guide is general information for Australian pool owners and is not a substitute for advice on your specific pool and site. All prices are AUD including GST, are for the unit only, and were current as of August 2026. Pool heat pumps are electrical appliances and must be connected by a licensed electrician. Confirm the current price, final sizing and installation cost before you buy.