Sidite has developed a water heater which combines heat pipe solar collector and storage tank into one product. The condenser of the heat pipe tube is directly inserted into the non-rorroding coper protection tube within the water tank.The heat pipe wvacuated tube collect heat with high efficiency transforming of the incoming solar irradiation into heat. The condenser tansfers the generated heat to the manifold where the water is heated. Thereafter, the hot water is circulating in the system until the system attains the required temperature.