Heat Pump Hot Water Reviews 2026: Brands Compared on Warranty, Noise and Efficiency
14 brands and 34models compared on the things owners end up caring about: how long the warranty runs, how loud the unit is, how efficient it is, and what it is made of. Every figure is the maker's published number or a register entry, with its source. We do not give star ratings, because there is no independent test score for these systems in Australia, and we will not invent one.
Free, takes about a minute. Up to 3 local installers quote, you choose.
Brands compared
Warranty in years (tank / compressor). Sound level and COP are the maker's published figures across the models we list. Victorian status is Solar Victoria's hot water product list, which decides the rebate tier.
| Brand | Warranty | Sound level | COP | Refrigerant | Australian made | Victoria |
|---|---|---|---|---|---|---|
| Reclaim Energy | 10 / 5 | 37 dB | 4.5 | CO2 (R744) | No | Locally made list (higher tier) |
| Sanden | 15 / 6 | 37 to 38 dB | 5 to 5.1 | CO2 (R744) | No | Locally made list (higher tier) |
| Rheem | 10 / 5 | 47 to 48 dB | 3.4 to 3.5 | R513A | Yes | Locally made list (higher tier) |
| iStore | 5 / 5 | 49 to 50 dB | 3.1 to 3.2 | R290 (propane) | No | Product list (standard tier) |
| Stiebel Eltron | 5 / 5 | 44 dB | 3.8 | R134a | No | Product list (standard tier) |
| Chromagen | 5 / 5 | 48 to 50 dB | 3.4 to 3.5 | R290 (propane) | No | Product list (standard tier) |
| Daikin | 10 / 10 | 40 dB | 4.5 | CO2 (R744) | No | Product list (standard tier) |
| Rinnai | 7 / 5 | 45 to 46 dB | 3.6 to 3.9 | R134a | No | Locally made list (higher tier) |
| Midea | 5 / 5 | 50 to 52 dB | 3.2 to 3.4 | R290 (propane) | No | Product list (standard tier) |
| Emerald | 7 / 5 | 49 to 50 dB | 4.41 to 5.2 | R290 (propane) | No | Product list (standard tier) |
| Haier | 7 / 5 | 43 to 47 dB | 4 to 4.49 | R290 (propane) | No | Product list (standard tier) |
| Apricus | 6 / 6 | 43 dB | 4.13 | R290 (propane) | No | Product list (standard tier) |
| Quantum | 5 / 2 | 48 to 50 dB | 4.3 to 4.53 | R290 (propane) | No | Not on the product list |
| Dux | 7 / 3 | Not published | 4.23 to 4.7 | R290 (propane) | Yes | Locally made list (higher tier) |
Sources: makers' data sheets and warranty terms as held in our brand data; Solar Victoria's hot water rebate product lists; model codes from the Clean Energy Regulator register read 23 September 2026. "Australian made" is at brand level: some brands build one range here and import another, which the brand pages spell out.
Every model, with its own price page
Reclaim Energy
- Reclaim Energy CO2 Heat Pump 315L: 315L, COP 4.5, 37 dB, $6,600 - $8,000 installed (modelled)
Sanden
- Sanden Eco Plus 315L: 315L, COP 5.1, 38 dB, $7,000 - $8,000 installed (modelled)
- Sanden Eco Plus 250L: 250L, COP 5, 37 dB, $6,500 - $7,500 installed (modelled)
Rheem
- Rheem Ambiheat HDc270 (270L): 270L, COP 3.5, 48 dB, $3,200 - $4,200 installed (modelled)
- Rheem AmbiPower MDc-180 (180L): 180L, COP 3.4, 47 dB, $2,800 - $3,800 installed (modelled)
iStore
- iStore 270L: 270L, COP 3.2, 50 dB, $3,900 - $4,400 installed (modelled)
- iStore 180L: 180L, COP 3.1, 49 dB, $2,800 - $3,600 installed (modelled)
Stiebel Eltron
- Stiebel Eltron WWK 302H: 302L, COP 3.8, 44 dB, $3,800 - $4,800 installed (modelled)
Chromagen
- Chromagen 170L Heat Pump (Midea): 170L, COP 3.4, 48 dB, $2,800 - $3,500 installed (modelled)
- Chromagen 235L Heat Pump (Midea R290): 235L, COP 3.5, 48 dB, $3,100 - $3,800 installed (modelled)
- Chromagen 280L Heat Pump (Midea R290): 280L, COP 3.5, 50 dB, $3,400 - $4,200 installed (modelled)
Daikin
- Daikin EKHHP250: 250L, COP 4.5, 40 dB, $5,500 - $7,000 installed (modelled)
- Daikin EKHHP315: 315L, COP 4.5, 40 dB, $6,500 - $8,500 installed (modelled)
Rinnai
- Rinnai E-Series 250L: 250L, COP 3.6, 46 dB, $3,350 - $4,100 installed (modelled)
- Rinnai GR 280L: 280L, COP 3.8, 46 dB, $3,900 - $5,000 installed (modelled)
- Rinnai AR 340L: 340L, COP 3.9, 45 dB, $4,900 - $6,000 installed (modelled)
Midea
- Midea 170LDERA: 170L, COP 3.2, 50 dB, $2,500 - $3,100 installed (modelled)
- Midea 200L DWHP: 200L, COP 3.3, 50 dB, $2,800 - $3,400 installed (modelled)
- Midea 280L DWHP: 280L, COP 3.4, 52 dB, $3,100 - $4,100 installed (modelled)
Emerald
- Emerald All-In-One Pro 220L: 220L, COP 4.9, 49 dB, $2,750 - $3,500 installed (modelled)
- Emerald All-In-One Pro 270L: 270L, COP 4.8, 49 dB, $3,200 - $3,600 installed (modelled)
- Emerald All-In-One Pro 320L: 320L, COP 5.2, 49 dB, $3,400 - $3,750 installed (modelled)
- Emerald All-In-One Select 270L: 270L, COP 4.41, 50 dB, $3,050 - $3,300 installed (modelled)
Haier
- Haier 200L Monoblock (HP200M1U1P): 195L, COP 4.49, 43 dB, $3,000 - $3,250 installed (modelled)
- Haier 250L Monoblock (HP250M1U1P): 246L, COP 4.48, 43 dB, $3,150 - $3,400 installed (modelled)
- Haier 330L Monoblock (HP330M1U1): 330L, COP 4, 47 dB, $3,400 - $3,650 installed (modelled)
Apricus
- Apricus All-In-One 260L (APHP-R290-260): 260L, COP 4.13, 43 dB, $3,000 - $3,250 installed (modelled)
Quantum
- Quantum 150L (150-08AC6-290): 150L, COP 4.3, 50 dB, $3,250 - $3,400 installed (modelled)
- Quantum 200L (200-08AC6-290): 200L, COP 4.3, 50 dB, $3,300 - $3,500 installed (modelled)
- Quantum 270L (270-08AC6-290): 270L, COP 4.53, 48 dB, $3,500 - $3,900 installed (modelled)
- Quantum 340L (340-08AC6-290): 340L, COP 4.53, 48 dB, $4,000 - $4,450 installed (modelled)
Dux
- Dux Ecosmart 200DHC25 (200L): 200L, COP 4.23, sound level not published, $3,300 - $3,600 installed (modelled)
- Dux Ecosmart 300DHC25 (285L): 285L, COP 4.63, sound level not published, $3,500 - $3,850 installed (modelled)
- Dux Ecosmart Pro-Series 270DHB36 (270L): 270L, COP 4.7, sound level not published, $3,500 - $3,800 installed (modelled)
How to read heat pump hot water reviews
Separate the unit from the install. Most one-star reviews of a heat pump are about a late installer, a missed booking or a tank in the wrong spot. Those matter, but they tell you about a business, not the product. Read for complaints that would follow the unit to any install: noise, slow recovery in winter, and how the maker handled a warranty claim.
Check the age of the review. A review written in the first fortnight says the unit turned on. One written after a winter, or after a part failed, says much more. Makers also revise models, so a complaint about an older model may not apply to the current one.
Compare sound levels at the same distance.Most makers quote a figure one metre from the unit. Emerald's data sheets show 49 to 50 dB at one metre while its web pages quote 39 to 40 dB from three metres; both can be true. Dux publishes no sound level for its Ecosmart range, so ask for one in writing if noise matters.
Ask which test a COP comes from.COP changes with air temperature and the test used. Apricus quotes 4.13 on its data sheet and 4.49 in its install manual for the same model. A higher figure on one brand's site is not proof it is more efficient than a lower figure on another's.
Treat ratings with care. CHOICE's heat pump hot water comparison lists sound levels, COP and refrigerant for models sold here, and when we checked it gave no expert rating to these systems. An aggregate star score elsewhere is usually a handful of install reviews averaged together.
What to ask installers before you choose
- Which exact model is on the quote, and is that model number on the Clean Energy Regulator register (it decides the STC discount)?
- In Victoria: is this model on Solar Victoria's product list, and on the locally made list if you are counting on the higher rebate tier?
- What does the maker's warranty cover on the tank, the heat pump parts and the labour, and for how long each?
- What workmanship warranty do you give on the install, in writing?
- What is the published sound level, measured at what distance, and where will the unit sit relative to bedrooms and the neighbours?
- What is the lowest air temperature it runs at on the heat pump alone, and does it use an electric boost below that?
- Who services it if something fails, and how long do parts take to arrive in your area?
Common questions
Which heat pump hot water brand has the longest warranty?
On the terms in our brand data, Sanden has the longest tank warranty at 15 years, and Daikin the longest compressor warranty at 10 years. Warranty terms change and often differ between the tank, the heat pump parts and labour, so check the current terms for the exact model on your quote.
Which heat pump hot water system is the quietest?
Of the figures makers publish, Reclaim Energy has the lowest at 37 dB. Sound levels are only comparable when they are measured the same way: most makers quote one metre from the unit, but some web pages quote a figure from further away, which reads lower. Dux publishes no sound level for its Ecosmart range at all.
Are heat pump hot water reviews on retailer sites reliable?
Read them for patterns rather than scores. Reviews on a retailer or installer site are often about the install and the service, not the unit, and most are written in the first weeks, before a winter or a warranty claim. Look for reviews that name the model, the climate and how long the owner has had it, and weigh complaints about noise, cold-weather performance and warranty handling most heavily.
Does CHOICE rate heat pump hot water systems?
CHOICE publishes a comparison of heat pump hot water systems, but at the time we checked it gave them no expert rating and no "recommended" models; its listing is compiled from maker and retailer data. That makes it a good place to compare specifications, and it is consistent with what we found: there is no independent test score for these systems in Australia to quote.
What are you replacing?
Tap one to continue