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German Federal Environment Ministry
WECF, Women of Europe for a Common Future, has published a practical guide explaining how to build a cheap and efficient solar water heating system, using local knowledge and materials and which can be used all year long. The document provides information on the different parts of a solar water heater, on how to build solar collectors and a heat exchanger tank. It also gives further information on other solar water heater models.
Companies : German Federal Environment Ministry