With round about four decades in business, the German-Slovak Thermosolar Group is one of the oldest solar thermal manufacturers in Europe. It began producing collectors in 1972 in Slovakia and started offering a special evacuated flat plate collector in 1997. Last November, long-time sales manager Markus Beslmeisl (see photo) acquired the remaining shares in the company from Johann Kollmannsberger. Solarthermalworld.org spoke with the new managing director about Thermosolar’s special solar heat pump system, called Duo Premium.
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