BrandExpand to view more details.
List of brands we tested in this review.
PriceExpand to view more details.
Prices are based on what we found on retailer or manufacturer websites in March 2023. Manufacturers often sell direct to installers, so for some models the price isn't publicly available.
enter value/s in increments of 1 between 0 and 6880
Integrated models are all-in-one units with the heat pump compressor at the top of the tank. Split systems have separate compressor and tank components (much like a split system air conditioner), which can allow the tank to be installed indoors.
The capacity of the tank, in litres.
enter value/s in increments of i between 125 and 420
Suitable household size
The household size for which this system is suitable. Generally assume 50L of hot water per person per day, plus 50% for occasional heavy usage days.
Defrost cycles are essential in cold areas, where icing can occur on the compressor unit.
Minimum working ambient temperature (°C)
The claimed minimum ambient temperature in which the heat pump hot water system will operate.
Maximum working ambient temperature (°C)
The claimed maximum ambient temperature in which the heat pump hot water system will operate.
The refrigerant type used by the heat pump compressor. R290 is propane and R744 is refrigerant grade CO2, both considered reasonably environmentally safe (low global warming potential). R134a is tetrafluoroethane, a hydrofluorocarbon, which has higher global warming potential.
Country of origin
Country of manufacture, where stated by the manufacturer or retailer.
A Similar model is identical in most aspects except for a few. This means that a majority of its test results are identical so you can reasonably expect to get the same results from the model we tested, but for those aspects which aren't identical, we'll note these as "Not Tested" in the Compare tables.
A Tested model refers to a model that is still current and available in the Australian market. You should be able to order this model through your local retailer, or find it online.
These models can't be found in retailers or online or are no longer manufactured. You may still find these models on second hand websites, or in second hand dealers. Test methods may change over time, so criteria which can't be directly compared will contain an N/A.
An Identical model is exactly that. Performance characteristics will be identical and the only difference will be something trivial such as colour, which won't have an impact on performance.
These are models we haven't yet tested but that are available.
Included in this comparison
- STC Zone 5
- STC Zone 3
- STC Zone 2
- STC Zone 4
- STC Zone 1
- Air flow rate (m3/h)
- Booster element
- Booster element power consumption (kW)
- Capacity (L)
- Covered under the VEEC scheme
- Covered under the NSW ESS
- Cylinder material
- Defrost cycle
- Heat pump depth (mm)
- Heat pump height (mm)
- Heat pump width (mm)
- Heat pump weight (kg)
- IP rating
- Maximum delivery (L/hr)
- Maximum horizontal displacement from tank (m)
- Maximum vertical displacement from tank (m)
- Maximum operating pressure temperature relief valve (kPa)
- Minimum clearance for side intake (mm)
- Minimum clearance for side outlet (mm)
- Noise level (dbA)
- Other clearances (mm)
- Output water temperature (°C)
- Heat pump power input (kW)
- Maximum power consumption (kW)
- Rated current (A)
- Rated voltage (V)
- Refrigerant capacity (kg)
- Refrigerant type
- Seasonal coefficient of performance (COP)
- Suitable for cold temperatures
- Suitable household size
- Tank width (mm)
- Tank depth (mm)
- Tank height (mm)
- Watermark certificate
- Tank weight when empty (kg)
- Tank weight when full (kg)
- Maximum working ambient temperature (°C)
- Minimum working ambient temperature (°C)
- Warranty (years)
- Country of origin