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Please note that due to the current Load Shedding we are experiencing a higher demand than usual and stock or response time may be slightly delayed. We are doing our best to get back to everyone as soon as possible. Please bear with us at this time.

Please note the availability of batteries is very limited and items may need to be placed on back-order. We cannot guarantee stock being available immediately.



Solar Geysers

Solar Geysers

Sustainable.co.za offers an array of solar geyser systems and tanks of all sizes to suit all of your hot water needs. Do your bit for the environment and save thousands of Rand today by switching to solar water heating. If you have any questions, please do not hesitate to Contact Us. The products listed below are individual components; why not check out our fully functional Solar Water Heating Kits.


Types of Solar Geysers

Solar geysers can be divided into two primary types:


  • Direct systems that pump water into solar panels, which is then heated and stored in the geyser. They can use either solar panels or evacuated tubes.
  • Indirect systems use a specially designed type of anti-freeze, which circulates through solar panels to heat the water, which then flows to a geyser. They also operate with solar flat plate or evacuated tubes.


Advantages and disadvantages of solar powered geyser systems

While direct systems are effective, the different geyser components are susceptible to corrosion and need regular maintenance and replacement. Unlike indirect systems, they don’t use any anti-freezing solutions and can freeze in very cold weather, rendering them ineffective and causing damage to the pipes.


Indirect solar geysers are not as efficient as direct geyser systems, as the pipes are only able to heat a small volume of water at a time; pipes are also relatively narrow, so tanks take longer to fill. However, they retain heat longer than direct systems. These solar geysers also last longer than direct geysers because they don’t freeze; the anti-freezing solution is also non-corrosive, which extends the life of all geyser components.


Solar geysers in South Africa

There are a number of quality solar power geysers available in South Africa. To ensure that your solar geyser meets the prescribed standards of quality and safety you need to look for an SABS mark of approval, Keymark certification, Eskom accreditation, SESSA (Sustainable Energy Society Southern Africa) membership and a five-year warranty.


Sustainable.co.za’s solar geysers

Sustainable.co.za carries a range of solar geysers from some of the most well known and respected brands in the solar power industry. For instance, Duratherm Geysers use the latest solar technology in the manufacture of their solar geysers, such as a unique polymer lining (PEX), which not only conserves heat and energy but also ensures that your system works for all water types, and is maintenance free. We also stock solar geysers with additional insulation from GAP Holdings.


An efficient solar geyser will effectively harness the power of the sun to meet all of your hot water needs in a sustainable and environmentally friendly manner that also saves you money. For solar geysers at an affordable price contact Sustainable.co.za and place your order today.


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  • GAP Eco Electric 100L Electric Geyser

    The Eco Electric geyser range is a cost-effective geyser that can be installed in a vertical or horizontal configuration for in roof applications. The Eco Electric geyser has one additional port to facilitate the easy conversion to Solar or Heat pump applications.

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    Excl. Tax: R 3,002.61 Incl. Tax: R 3,453.00

  • GAP Eco Green 100L Direct Solar Geyser

    The Eco Green geyser is manufactured with two additional ports and as a result is ideally suited for direct solar systems. The Eco Green geyser is weather resistant and has additional insulation allowing it to be installed inside or on top of the roof.

    Please download full specifications sheet here.

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    Excl. Tax: R 3,887.83 Incl. Tax: R 4,471.00

  • Tecron 100L 400kPa Electric Geyser

    Copper remains the global material of choice for the manufacturing of hot water cylinders because it has proven its durability and reliability over decades. Copper geysers have proven to be the geyser with the longest lifespan, because copper is naturally corrosion resistant and is used in the natural form for the manufacturing of geysers. A copper geyser doesn’t require periodic servicing, like anode replacements. This makes a copper geyser more cost effective over a long period of time. Copper is an environmentally friendly metal. It does not deteriorate and has the highest recycling rate of any engineering metal in the world. Copper kills bacteria, USA EPA has awarded copper antimicrobial status (www.antimicrobialcopper.org).

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    Excl. Tax: R 6,104.35 Incl. Tax: R 7,020.00

  • KwikSol 100L 400kPa Indirect Solar Geyser

    The indirect system is used in locations where frost occurs, where the ambient temperature falls below 5°C and where the water quality is poor (more than 600ppm Total Dissolved Solids / Minerals). The system can be used with one or two Solar Collector Panels dependent on the capacity of the solar tank.

    *Please note that the image is for illustrative purposes only and may not represent the actual specifications. Geyser only no solar water heater or accessories included.

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    Excl. Tax: R 6,277.39 Incl. Tax: R 7,219.00

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