The Hot-Line Solar Collector

Iowa entrepreneur invents a fixed-position, concentrating solar collector. Learn how it works and how to build your own. Including photos, diagrams and detailed instructions.



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Hot-Line modules furnish most of the heat used by this Iowa firm.
PHOTOS: MOTHER EARTH NEWS STAFF
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Fig. 2 Diagram of the change in reflection direction as related to the sun elevation in degrees.
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Close-up of modules mounted vertically on south wall of a house.
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Fig.1 Diagram of solar reflector construction.
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