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ARETHA - AiR Exchange THermal Assembly

turtleARETHA is a new method to produce hot water from the sun, using low cost materials and without any particular expertise. Anybody can build an ARETHA solar panel of any size.
Traditional photovoltaic or thermal solar panels are too expensive for most people in developing countries, especially in sma



ARETHA Project is carried out by a group of retired technicians, joined together by the passion of DIY and making things useful for people. Franco Mantega designed ARETHA and he is the Team Leader of the group. This includes: Paolo Bonelli, Piero Borroni, Gianni Pampurini, Bruno Riva.