Quantum Heat Pump Hot Water
Quantum Energy has been building hot water heat pumps since the 1990s and runs a manufacturing facility at Seaford in South Australia. The current range is propane (R290) in four tank sizes from 150L to 340L, which is the widest spread of sizes of any brand here and the reason it turns up on small units and large households alike. The 270L and 340L publish a coefficient of performance of 4.53.
Quantum hot water heat pump price (2026)
Out-of-pocket assumes federal STCs + a typical state-level top-up. Victorian households can stack up to $2,700 in rebates ahead of the 2027 gas ban; NSW, SA and ACT have their own top-ups. Cheapest model: Quantum 150L (150-08AC6-290) from $3,250. Largest: Quantum 340L (340-08AC6-290) up to $4,450. Lowest running cost across the range: ~$261/yr.
Quantum models and prices (2026)
Quantum 150L (150-08AC6-290) price
Installed $3,250 - $3,400 before rebates; the federal STC incentive on this model is 14 certificates, about $560, for a 2026 install in zone 3, which covers Sydney, Brisbane, Adelaide and Perth; Melbourne, Canberra and Hobart earn more. So expect roughly $2,690 to $2,840 before any state rebate.
Quantum 200L (200-08AC6-290) price
Installed $3,300 - $3,500 before rebates; the federal STC incentive on this model is 14 certificates, about $560, for a 2026 install in zone 3, which covers Sydney, Brisbane, Adelaide and Perth; Melbourne, Canberra and Hobart earn more. So expect roughly $2,740 to $2,940 before any state rebate.
Quantum 270L (270-08AC6-290) price
Installed $3,500 - $3,900 before rebates; the federal STC incentive on this model is 15 certificates, about $600, for a 2026 install in zone 3, which covers Sydney, Brisbane, Adelaide and Perth; Melbourne, Canberra and Hobart earn more. So expect roughly $2,900 to $3,300 before any state rebate.
Quantum 340L (340-08AC6-290) price
Installed $4,000 - $4,450 before rebates; the federal STC incentive on this model is 15 certificates, about $600, for a 2026 install in zone 3, which covers Sydney, Brisbane, Adelaide and Perth; Melbourne, Canberra and Hobart earn more. So expect roughly $3,400 to $3,850 before any state rebate.
Pros
- Four tank sizes from 150L to 340L, the widest range here
- A 150L option, which almost no other brand offers
- Australian company with a manufacturing facility at Seaford, South Australia
- Propane (R290) across the range
- On the register since 2014, so the models have a long track record
Cons
- Not on the Solar Victoria product list at all, so a Quantum does not qualify for the Victorian hot water rebate
- Only 2 years on the electrical and refrigeration parts, the shortest here
- Quantum publishes no labour warranty term
- The product pages and the 270L data sheet disagree on the minimum operating temperature (-10C against -15C)
- 50 dB on the 150L and 200L
Best for
Small households needing a 150L or 200L tank, and anyone outside Victoria who wants a long-established Australian brand
Quantum prices & rebates by state
Federal STCs plus state rebates can knock up to $2,700 off the installed price. See Quantum pricing for your state.
Quantum hot water heat pump FAQ
How much is a Quantum hot water heat pump installed in 2026?
A Quantum hot water heat pump costs $3,250 - $4,450 fully installed in Australia before rebates. The cheapest model (Quantum 150L (150-08AC6-290), 150L) starts at $3,250; the largest (Quantum 340L (340-08AC6-290), 340L) tops out around $4,450. After stacking federal STCs (worth $560-$600 depending on the model and your climate zone) and state-based rebates, most households pay $1,250-$3,390 out of pocket.
Is Quantum a good heat pump brand?
Quantum Energy has been building hot water heat pumps since the 1990s and runs a manufacturing facility at Seaford in South Australia. The current range is propane (R290) in four tank sizes from 150L to 340L, which is the widest spread of sizes of any brand here and the reason it turns up on small units and large households alike. The 270L and 340L publish a coefficient of performance of 4.53. Quantum is best suited to small households needing a 150l or 200l tank, and anyone outside victoria who wants a long-established australian brand.
What rebates can I claim on a Quantum heat pump?
Every Quantum model attracts federal Small-scale Technology Certificates (STCs) worth $560-$600 at point of sale. On top of STCs, Victorian households can stack the Solar Victoria Hot Water Rebate ($1,000-$1,400) and Victorian Energy Upgrades discount ($500-$2,000) to reach up to $2,700 in rebates. NSW (Energy Savings Scheme), SA (REPS), and ACT (Sustainable Household Scheme) have their own state-level top-ups. Most of it is automatic: STCs, Victorian Energy Upgrades and the NSW Energy Savings Scheme are already inside the price your installer quotes. Solar Victoria's rebate is the one worth going after on top, and your installer drives it. They lodge it with your quote, you add ID and proof of income, and it comes off your invoice on approval.
What is the warranty on a Quantum heat pump?
Quantum backs its tanks with a 5-year warranty and the compressor with 2 years. Workmanship cover for the install itself comes from your installer separately and should be at least 12 months. Warranty claims require the system to have been installed by a licensed plumber and serviced according to the manual.
How efficient is a Quantum heat pump?
The Quantum 150L (150-08AC6-290) runs at COP 4.3 (every 1 kWh of electricity input produces 4.3 kWh of heat output). Annual running cost is around $275 for a 1-2 person household, compared to roughly $700/year for gas storage and $900/year for old-school electric resistive storage.
How long does a Quantum heat pump last?
Modern hot water heat pumps last 12-15 years on average in Australian conditions. Tank life depends on water hardness (sacrificial anode replacement every 5 years extends life). Compressor life is the limiting factor and typically matches or exceeds the warranty period when the unit is correctly sized and serviced.
Quantum vs other brands: which should I pick?
Quantum sits at the budget end of the Australian market. It strikes a balance between quality and price. See the side-by-side comparisons below for direct head-to-head specs.
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