Best Value Pool Heat Pumps Under $5,000 in Australia
Five grand buys a properly sized heat pump for most backyard pools. The trick is not paying for kilowatts you will never use, or saving $600 and buying one that cannot keep up in May.
The best value pool heat pump in Australia is the Midea M Series 20kW with Wi-Fi at $3,799. It delivers 21.8 kW of heating at a COP of 5.2, which works out to about $174 per kilowatt, the lowest cost per kW of any pool heat pump we sell. If you want a full inverter for lower running costs and quieter nights, the Fairland Aqua X Essential 17.1kW at $4,607 is the pick.
Value is not the cheapest sticker. It is the most heat for the money, in a unit that suits your pool, your power supply and your neighbours. Every heat pump below is under $5,000 in NSW, VIC and ACT and is live and orderable today.
Want your exact size first? Our pool heat pump sizing calculator works out the kW your pool needs for your city, season and cover, then shows the units that fit.
Short on time? See the Midea 20kW, the Fairland Aqua X Essential 17.1kW, the SensaHeat ES 20kW, or browse every pool heat pump we sell.
Best value pool heat pumps under $5,000 at a glance
The Midea 20kW gives the most heat per dollar, the Fairland 17.1kW gives the best running cost for the money, and the Fairland 11kW is the best value for small or covered pools. Prices current as of November 2026.
| Heat pump | Heating output | Efficiency | Noise at 1 m | Power | Price (NSW/VIC/ACT) | Cost per kW |
|---|---|---|---|---|---|---|
| Midea M Series 20kW | 21.8 kW | COP 5.2 | 54 dB(A), 40 in silence mode | 23 A max | $3,799 | About $174 |
| SensaHeat ES 20kW | 20.2 kW | COP 10.8 to 6.2 | 46.3 to 58.1 dB | 19.5 A max | $4,700 | About $233 |
| Fairland Aqua X Essential 17.1kW | 17.1 kW | SCOP 7.6, COP up to 14.2 | 44.8 to 56.2 dB(A) | 230V single phase | $4,607 | About $269 |
| SensaHeat TDX 14kW | 14.0 kW | Inverter | Quiet series | 12.5 A max | $3,879 | About $277 |
| Fairland Aqua X Essential 11kW | 11 kW | SCOP 7.3, COP up to 14.3 | 41.3 to 53.4 dB(A) | 10 amp plug | $3,182 | About $289 |
| Guardian Platinum 9kW | 2.7 to 9.5 kW | COP up to 16 | 42 to 47.5 dB(A) | 6.48 A at full output | $3,046 | About $321 |
Prices current as of November 2026, AUD including GST. Midea and Fairland prices are a little higher in QLD, SA and WA. Figures from each live product listing. Cost per kW uses the listed heating output.
Best value overall: Midea M Series 20kW
The Midea M Series 20kW is the best value pool heat pump under $5,000 because $3,799 buys 21.8 kW of heating, enough for most uncovered 40,000 litre pools in Sydney, at the lowest cost per kilowatt we sell. It is also our best selling heat pump by a long way.
It holds 17.0 kW of output at lower air temperatures (COP 3.6), which is the number that matters in April and May. It runs on R32 refrigerant, has Wi-Fi app control, Modbus for pool automation systems, and reverse cycle cooling of 8.6 kW. Residential warranty is 5 years.
Now the trade offs, because there are two. First, it draws up to 23 A, so it needs its own dedicated 25 A circuit run by a licensed electrician. Budget for that. Second, it is louder than the inverter units here at 54 dB(A) at 1 metre on full output. Silence mode drops it to 40 dB(A) at about 60 percent capacity, which is the setting to use at night near a bedroom window.
Who it suits: uncovered pools of 30,000 to 45,000 litres, anyone who wants the most heat for the least money.
Who it does not suit: houses with a tight switchboard, or a unit going right under a neighbour's window.
Best value full inverter: Fairland Aqua X Essential 17.1kW
The Fairland Aqua X Essential 17.1kW is the best value full inverter pool heat pump under $5,000, because it pairs a SCOP of 7.6 with 17.1 kW of output for $4,607. A full inverter ramps the compressor down to hold temperature instead of switching on and off, so it uses less power once the pool is warm.
Input power runs from just 0.32 kW to 2.51 kW. Compare that with the Midea's 5.3 kW input. Output is 11.8 kW at 15C air, noise starts at 44.8 dB(A) at 1 metre, and it runs on 230V single phase with Wi-Fi control. Over a long heating season the lower running cost claws back the $808 price gap to the Midea. Read our Midea vs Fairland comparison for the full head to head.
Who it suits: pools heated most of the year, covered pools up to around 50,000 litres in Sydney, and anyone who cares about the power bill more than the purchase price.
Who it does not suit: a big uncovered pool in Melbourne, which needs more kW.
See the Fairland 17.1kW, $4,607 →
Best value high output inverter: SensaHeat ES 20kW
The SensaHeat ES 20kW is the best value if you want inverter efficiency and 20 kW of output under $5,000, delivering 20.2 kW at a COP of up to 10.8 for $4,700. Average COP at 50 percent speed is 9.1, and maximum input power is 3.26 kW.
It draws 19.5 A at maximum, so it still wants a dedicated circuit. Noise is 46.3 to 58.1 dB at 1 metre. It uses R32, has Wi-Fi control and cools at 7.7 kW. It is the middle ground: nearly the Midea's output with a proper inverter, for $901 more.
See the SensaHeat ES 20kW, $4,700 →
Best value for small or covered pools: Fairland Aqua X Essential 11kW
The Fairland Aqua X Essential 11kW is the best value pool heat pump for small or covered pools, giving 11 kW of full inverter heating for $3,182 on a standard 10 amp plug. That 10 amp plug is the hidden value: in many cases there is no new circuit to pay for.
SCOP is 7.3, COP reaches 14.3, input power runs from 0.21 to 1.63 kW, and noise starts at 41.3 dB(A) at 1 metre. On our pool heat pump size chart, 11 kW covers a 40,000 litre pool in Sydney with a cover on. Need even less? The Fairland 7.5kW is $2,645, the cheapest heat pump we sell.
See the Fairland 11kW, $3,182 →
Best value for spas and plunge pools: Guardian Platinum 9kW
The Guardian Platinum 9kW is the best value heat pump for a spa or plunge pool, because it has the best efficiency and warranty in this price range: COP up to 16, a Mitsubishi inverter compressor, and 25 years on the titanium heat exchanger plus 5 years on the compressor. It costs $3,046.
Output runs 2.7 to 9.5 kW, rated input is 0.17 to 1.34 kW, and it is one of the quietest units we sell at 42 to 47.5 dB(A) at 1 metre. It is too small for most family pools. For a plunge pool, it is the one we would buy. More options are in our quietest pool heat pumps list.
See the Guardian Platinum 9kW, $3,046 →
How to get value from a budget pool heat pump
The fastest way to get value from any budget pool heat pump is to put a cover on the pool, because a cover roughly halves the kW you need. On our size chart, a 50,000 litre Sydney pool needs about 24 kW uncovered but only 13 kW covered. That is the difference between a $3,182 unit and one over $5,000.
- Size on your coldest swimming month, not on summer. An undersized heat pump runs flat out and still loses.
- Price the electrical work in. A 10 amp plug unit can save several hundred dollars against one that needs a dedicated circuit.
- Count the running cost, not just the price. A full inverter at low input power usually beats a cheaper fixed output unit over five years. Our pool heat pump running costs guide has the numbers.
- Check flow. Every heat pump needs a minimum flow from the pool pump. A variable speed pool pump must be set fast enough while heating.
Frequently asked questions
What is the best value pool heat pump in Australia?
The best value pool heat pump in Australia is the Midea M Series 20kW at $3,799 as of November 2026, because it delivers 21.8 kW of heating for about $174 per kW, the lowest cost per kilowatt we sell. It needs a dedicated 25 A circuit and carries a 5 year residential warranty.
Can you get a good pool heat pump for under $5,000 in Australia?
Yes, a good pool heat pump for most Australian backyard pools costs under $5,000, including the Midea 20kW at $3,799, the Fairland Aqua X Essential 17.1kW at $4,607 and the SensaHeat ES 20kW at $4,700 as of November 2026. Installation and electrical work are extra.
What is the cheapest pool heat pump that is still worth buying?
The cheapest pool heat pump worth buying is the Fairland Aqua X Essential 7.5kW at $2,645 as of November 2026, but only for a spa, plunge pool or small covered pool. For a typical family pool, the Fairland 11kW at $3,182 with a cover or the Midea 20kW at $3,799 without one is the realistic starting point.
Is an inverter pool heat pump worth the extra money?
An inverter pool heat pump is worth the extra money for pools heated most of the year, because it ramps down to hold temperature and uses far less power once the pool is warm. The Fairland 17.1kW draws 0.32 to 2.51 kW against the Midea 20kW's 5.3 kW input.
What size heat pump does a 40,000 litre pool need?
A 40,000 litre pool in Sydney needs about 19 kW of heat pump without a cover, or about 11 kW with one, based on our pool heat pump size chart. Colder cities need more: Melbourne needs about 27 kW uncovered or 15 kW covered.
Want a second opinion on value?
Send us your pool size, your suburb, whether it has a cover and a photo of your switchboard, and we will tell you which heat pump gives you the best value and what the electrical will involve. Get a quote here, contact us or call 1300 930 847. Comparing everything? See the best pool heat pumps in Australia.
This guide is general information for Australian pool owners and is not a substitute for advice on your specific pool and site. Pool heat pumps are electrical appliances and must be installed by a licensed electrician; some models need a dedicated circuit. Sizing figures are rules of thumb from our size chart and your results will vary with climate, cover use and exposure.