Our solar panels use special vacuum tubes with the latest HEAT PIPE technology that provide exceptional performance advantages over flat solar panels and conventional vacuum tubes. In fact, the vacuum is created inside the thick tube (3 mm) and is ensured by a rear closure cap with a patented junction system. The absence of air inside the tube and the absorbing plate treated with highly selective materials allow both direct and diffused solar radiation to be converted into heat. Even the infrared rays that arrive through clouds are absorbed and converted into usable heat. The graph below shows the minimal influence of the external temperature on the panel performance. This ensures that our solar systems provide the bulk of the domestic hot water production of a home, not only in summer, but also in mid-season and winter, and is the ideal solution where integration with heating systems is required;