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The new Roth Heliostar® S4


...with plug-in connections. It has never been easier to install a solar thermal system.

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The plug-in connection technology makes Heliostar® S4 easy to install and gives optimum flow through collectors resulting in lower pressure losses. Made of a closed polycarbonate case construction, the Roth Heliostar® S4 unites high-tech material and mature technology. Polycarbonate is a perfect insulator. Due to this feature the thick walled polycarbonate case of the Roth Heliostar® S4 assures optimal heat storage. In combination with the high performance absorber the Roth Heliostar® S4 guarantees highest efficiency for decades. Watch the installation video.