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    Evacuated Tube Solar Hot Water Systems from Rinnai

    Rinnai Australia

    Evacuated Tube Solar Hot Water systems are the latest addition to Rinnai's range of solar hot water offerings.

    An evacuated tube solar water heater is a split system, where the storage tank is ground mounted, and the evacuated tubes are installed separately on the roof.

    Solar energy is collected by these evacuated tubes, which are manufactured in borosilicate glass with an inner glass tube providing a vacuum for heat retention.

    The heat pipe is manufactured in copper and contains a small amount of purified water that turns to steam at approximately 30 degree Celsius, generating the heat that provides consumable hot water.

    The energy the tubes collect is then transferred to the consumable hot water inside the well-insulated header assembly, allowing the collector to withstand temperatures as low as -12°C.

    Boasting a range of storage capacities from 175 litres to 320 litres, the steel tanks are manufactured in Australia and lined with high quality Vitreous enamel. Their slimline design also leaves a small footprint.

    At the same time, the separation of the tubes and tank means there is a minimal impact on the aesthetics of roof lines, with roof structures not requiring further reinforcement.

    The solar collectors are available in 20, 25 or 30 tube configurations, while the high efficiency evacuated tubes are designed to absorb the maximum available solar energy.

    Rinnai’s evacuated tube solar hot water systems are furthermore durable, and do not face the same level of corrosion problems as flat plate collectors. An added advantage to this design is the ability to replace the tubes without disrupting water supply.  

    The tanks come with a 10 year warranty, while the evacuated tube collectors have a 15 year warranty.

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