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  • Benefits include:

    You can save up to 80% of your  hot water energy costs when compared with a traditional electric hot water system!  The Sanden Eco® Plus Hot Water Heat Pump uses only 20% of the energy required by older-style, electric element  hot water storage systems.

    Not only does a Sanden Eco® Plus heat pump hot water system help save on energy costs, it also delivers:

    (a) Heat Pump Unit Benefits:

    • Innovative technology; up to 50% faster heat recovery than currently available Hot Water Heat Pumps.
    • Industry leading quality & performance; the Sanden Eco Plus gives you the highest level of STC credits of any currently available heat pump hot water system.
    • Class leading warranties; backed by Sanden’s 35 years of operation in Australia.


    (b)  Stainless Steel Storage Tank Benefits:

    • High quality; extra long life duplex stainless steel cylinder.
    • Fully insulated; for extremely low heat loss.
    • Safety, pressure and temperature relief valves.
    • Mains pressure rated.

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  • Yes, importantly no warranty applies to the heat pump unit and the storage tank, where the chloride level exceeds 200 mg/litre and the pH is less than 6.0. If in doubt, seek water quality information from your local council or water supplier.

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  • The Sanden Eco® Plus heat pump hot water (HPHW) system operates like a refrigerator in reverse. It contains a fan that forces air through an evaporator that contains a refrigerant. The heat in the ambient air passes through the evaporator (note: even air below 0 º C contains heat energy) and is absorbed by a natural refrigerant, R744 (aka CO2), which is ozone friendly and does not significantly contribute to global warming compared with most other refrigerants (older style refrigerants have thousands of times more global warming impact for the same amount of gas, when compared with CO2).

    The warm gaseous refrigerant is circulated in the system via a compressor. As it passes through the compressor, its pressure rises, as does its temperature. This hot refrigerant then passes through a heat exchanger to heat the water, which is finally pumped to the storage tank.

    How a Sanden Eco Plus Heat Pump Hot Water services works


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  • Check our comprehensive Sanden not working checklist here if you think you have a problem with your Sanden Eco heat pump hot water system.

    If you're still unsure after going through this guide - please lodge a Pure Electric Service Case here

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  • Why does the Sanden use CO2 as its working gas, what is the benefit?

    • There is far less environmental impact (i.e. No ozone layer depletion and minimal global warming) than other commonly used refrigerants, should the system leak. 
    • There is a much higher efficiency, thereby allowing more heat to be transferred to the water, for less energy used (i.e. Excellent  thermodynamic ability).

    Isn't CO2 a greenhouse gas and therefor bad for the environment?

    While it is true that Carbon Dioxide (CO2) is a greenhouse gas it has a Global Warming Potential (GWP) of 1. Whereas refrigerant gases in other heat pumps can have GWP of over 10,000, which means if they leak to the atmosphere they contribute 10,000 times more to global warming compared with the refrigerant gases used in a Sanden Eco Plus. 

    The table below shows the GWP for some common refrigerant gases (note: GWP must include a time interval over which the greenhouse gases act, in this case 100 years)

    How Sanden delivers better Performance and Savings


    Our system utilizes less than 1 kg of R744 (CO2) as a refrigerant contained in a closed system at the factory.  The installer does not need to charge the heat pump on site.

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  • Yesfor efficient processing of warranty claims, should they arise, please register your Sanden Eco® Plus heat pump hot water system here.

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  • Uploading Photos for Sanden Eco Heat Pump Quote

    As heat pump hot water systems receive Government subsidies and rebates, Government authorities are requiring all photos are GEO-tagged to comply.

    If you are unsure that your photos are GEO-tagged, we have a helpful Geo-tag guide on our website here ->

    You can test if your photos are GEO-tagged by uploading photos to this website ->

    Please see below some photo tip examples for uploading photos to your Sanden Eco heat pump quote request.

    Existing Hot Water System (Left)

    Photo Tips: 2-3m to the left of the tank and up to the eaves

    A picture containing building, house

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    Existing Hot Water System (Right)

    Photo Tips: 2-3m to the right of the tank and up to the eaves



    Existing Hot Water System (Serial Number)

    Photo Tips: Clear and readable


    Photo Tips: Clear and readable so if you zoom in you can see the circuit breaker rating, enclosure flaps are open