A well presented Solar Water Heating manual packed with illustrations and informative instructions, perfect for any DIY solar energy enthusiast or professional solar water heating system installer.
Dr J. Bevan, Portsmouth

The grid tied photovoltaic system was well designed and professionally installed – since the installation our company has won a prestigious Environmental Award.
Mr. David Sutherland, Managing Director, Sutherland Brothers Ltd, Wick, Caithness

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