Solar water heater. Solar heaters, solar energy water heater, Solar Heaters Model: SPECIFICATION: 1. ... Preservation: Polyurethane foam with 55mm thickness 5. Magnetic-controlled Al-N-Al splash all glass evacuated ... tank, 2. When using the hot water, the cold water flows through the inlet, the copper coil ... absorb the heat then transfer into the cold water, so that the temperature rise up ceaseless, ...