360L fresh water solar water heater fresh water solar water heater Product Overview: The all-glass vacuum tube solar collector collector tank SUS304 stainless steel liner open water tank insulation is polyurethane foam insulation, water tank built-SUS304 heat exchanger coil sunny days, solar radiation energy through the natural cycle of the collector heat gradually gathered into the tank, rainy days, the water temperature is not enough, by the water tank built-in electric heating system is heated to a set temperature. The Solatube sunlight professional solar system design, http://www.bjsola.com reverse heat transfer technology RHES-tank configuration stainless steel coil heat exchanger, the hot water tank as the energy storage medium, cold water through a stainless steel plate tube heat exchanger absorbs heat rapidly heated 20 seconds fast heat exchanger, the water temperature close to the temperature of the water in the tank (2 ° C temperature difference), the water pressure from the municipal pressure, dynamic pressure drop of about 5 meters. Keywords: solar water heater, solar vacuum tube solar collector tank collector