The AmbiPower® 280e is a Low GWP (Global Warming Potential) R290 refrigerant 280 litre Heat Pump for replacement of an electric water heater. With a high Coefficient of Performance (COP) of 5.2 and Ultra Low GWP refrigerant it makes a perfect choice for larger families.
Now with EcoNet™ Wi-Fi control App. on your smartphone to stay informed through reports and alerts, help optimize efficiency, control temperature, manage energy usage, schedule holiday modes, boost hot water fast when required among many things
Available in Hardwired 2.4kW back-up element and Plug & Lead 1.5kW 10A model in Standard and Blue Anode options.
Features at a Glance
Capacity
No. of People ✕
Warranty*
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Monitor hot water energy use.
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Set fixed preferred heating schedules.
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Access to different modes such as Holiday/Vacation, Solar.
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Check hot water availability at a glance.
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Receive alerts & notifications in the App to stay informed,™ among other things (Click here to learn more about EcoNet™)
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Suitable for cold climates with an operating range from -6°C to +43°C
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Suitable for harsh water conditions
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Can save up to 73.9% on your water heating energy consumption compared to an electric water heater in Zone 3#
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Eligible for STCs (may be eligible for additional incentives in some states)
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10 year cylinder warranty*
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Suitable for up to 6 people^
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Uses R290 refrigerant with a GWP of <3
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10 years cylinder supply
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3 years cylinder labour
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3 years sealed systems supply including labour
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1 year parts supply and labour on all other parts
Specifications
Owners and Installation Guides
Specifications
Running Cost Estimator
Select your State
Running Cost Estimator Disclaimer as at 24/03/2026
Things that you should know about the Rheem Running Cost Estimator
The estimator is provided as a guide only to help you compare estimated running costs between various water heater types.
The estimator is based on Australian Standard AS5263, which relies on certain assumptions, such as an average daily load of 200L and 19 tap turns. Your situation and usage may be different to these assumptions, so the estimator may not match your actual daily loads and pattern of use.
Accordingly, the estimator cannot and does not purport to provide an accurate assessment of your yearly hot water energy bill. It does, however, allow a reasonable comparison between various water heater types based on Australian Standard AS5263 and average fuel tariffs used in the estimator.
Your state has been used to determine the temperature rise required to heat water from cold to a temperature of 65C, the applicable charge for the tariff type selected and the amount of solar savings.
Solar savings are based on Australian Government approved modelling for the type of solar water heater selected and the booster type. All electric boosted solar water heaters are modelled with a continuous tariff, but may be suitable for use on other tariff types depending on the model selected, your climate zone and the amount and usage pattern of hot water use.
Tariffs are current as at 1st July 2025 and represent an average price for the fuel type for the capital city in the state or territory, including GST.
Fixed charges, system access charges, delivery fees and any other fees and charges, including special rates and discounts are excluded from the estimator.
Energy consumption figures used are for a typical water heater within a category and do not reflect a specific model. Actual energy use may vary.
Heat Pump and solar water heaters may be suitable for Off Peak/Shoulder Rate tariffs depending on the type of water heater selected and the location. You should consult with your energy provider or installer before making any decision.
