Rheem AmbiPower 551e280R5 Heat Pump



  • 7 years cylinder supply*
  • 3 years cylinder labour*
  • 3 years sealed system supply and labour
  • 1 year parts supply and labour
  • Australian Made
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Free Delivery To most metro areas of Australia

Installation Available Brisbane Area Only

Brochure Owners Manual


Rheem AmbiPower 551e280R5 Heat Pump

The Rheem AmbiPower 551e280R5 Heat Pump is an awesome choice if you’re looking to switch from an electric water heater to something more eco-friendly. It uses a Low GWP (Global Warming Potential) R290 refrigerant and holds 280 liters of water. Perfect for homes where a traditional solar water heater won’t quite fit the bill. It’s super energy efficient, boasting a high Coefficient of Performance (COP) of 5.2.

What’s really cool is its advanced wrap-around microchannel heating technology, which heats water evenly and fast. So, whether you’re dealing with harsh water conditions or chilly climates (it can handle temperatures down to -6°C), the Rheem AmbiPower 280e Heat Pump has you covered.

And let’s talk durability. Designed and tested to withstand the Aussie elements, it’s got an enamel lined water tank to fend off corrosion, a smart side fan design to keep air flowing while keeping rain out, and a tough outer shell made from painted sheet metal with an Aluminium top cover.

But wait, there’s more! It’s easy to use too, thanks to its LED touchscreen controller that gives you all the info you need at a glance.


  • Advanced wrap-around microchannel heating technology for quick and even water heating
  • Works like a charm in cold climates (from -6°C to +43°C) and tough water conditions
  • Can slash your water heating energy use by up to 70% compared to an electric heater in Zone 3#
  • Comes with a 2.4 kW back-up element for those extra chilly days
  • User-friendly touch screen LED display
  • Eligible for STCs (and might even snag you some extra incentives depending on where you live)
  • Comes with a solid 7-year warranty on the cylinder*
  • Suitable for households with up to 6 people^
  • Uses R290 refrigerant with a GWP of less than 3
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Rheem is committed to developing products using sustainable refrigerants to reduce Green House Gases by using energy efficient, environment friendly Ultra low Global Warming Potential refrigerants.

Rheem is dead set on creating products that use sustainable refrigerants to cut down on Green House Gases. They’re all about using energy-efficient, eco-friendly Ultra Low Global Warming Potential refrigerants.

So, what exactly is GWP or Global Warming Potential? GWP stands for Global Warming Potential. When we talk about refrigerants, GWP measures how much heat a greenhouse gas traps in the atmosphere over a certain period, usually 100 years.

Picture it like this: when these gases get released into the atmosphere, they act like a thick blanket, making the Earth warmer and contributing to global warming.

Now, why does it matter? Using lower GWP refrigerants is a win for the environment. They have a much smaller impact compared to higher GWP ones. In short, the lower the GWP of a refrigerant used in a Heat Pump, the less it messes with our environment.

Rheem AmbiPower 280e Heat Pump Refrigerant data

Additional information

Size by Litres

Energy Source


Element Size

Coefficient Of Performance (COP)

Height (mm)

Width (mm)

Depth (mm)

Weight -kg

Manufacturers Warranty

ECV Setting

IP Rating

TPR Setting



Type of System

STC Zone 1

STC Zone 2

STC Zone 3

STC Zone 4

STC Zone 5

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