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Inside each Ecotube is an absorber plate that gathers the sun's energy and turns it into heat. The absorber plate is bonded to a copper pipe, and fluid passed through the pipe collects the heat for transfer to a hot water system.
The whole assembly is sealed within a glass tube containing a high vacuum, and this virtually eliminates heat losses by convection or conduction. This type of water heating system is much more efficient than a flat plate collector, and much more durable.
Ecotube performance exceeds that of competing evacuated tube systems, thanks to:
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versatility - the Ecotube can go flat on roofs and walls, and the absorber plate is custom angled to give you guaranteed maximum efficiency for the life of the system
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high transmittance glass, which is virtually transparent to solar energy
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a super-efficient selective coating on the absorber plate, which maximises the solar energy absorbed and minimises the heat energy lost by radiation
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a uniquely durable glass-to-metal seal at the end of each tube, to maintain the high vacuum that prevents energy losses by convection and conduction
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glass and metal components that expand and contract at the same rate in response to temperature changes, resulting in a reliable system built to last more than 30 years
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an indirect heat-exchanger that eliminates problems caused by the build-up of lime-scale, and ensures that the panel cannot freeze in winter
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