Copper for solar-thermal systems

Copper Development Association, solar thermal

The UK Copper Board has prepared an introduction to the design and installation of copper solar-thermal systems. Copper can readily withstand the high temperatures that the operating fluid can reach — sometimes over 200°C. Jointing is by capillary brazing or flame-free solar press fittings. The copper tube used is the same specification as for many other pipework applications.

The guide is available as print and online ( and details the merits and applications of flat-plate and vacuum-tube collectors. It discusses the layout of solar thermal systems, appropriate pipework and system design, and how to size the various components for an installation.

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