At Gauzer, we cultivate long-term relationships with our partners since our advance is tightly tied with their prosperity. We have a long history of committing to quality and we are holding some of the strictest international certificates, the CE, TUV & Solar Key Mark.Some of our products are Thermosiphonic Solar Systems Forced Solar Systems Drain Back Solar Water-Heating System Dionissos Solar Collectors Optima Solar Collectors Swimming pool heating.