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  • A Solar Water Heater Made of PET Bottles

    Monday, July 2nd, 2007

    Synopsis in English: The government of the southern Brazilian state of Paraná has been conducting an interesting experiment in environmental design utilizing waste materials.
    Since August 2006 state agencies have sponsored projects to construct solar water heaters constructed from used PET bottles and “long life” (aseptic) milk packaging. So far some 3,000 such heaters […]

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