... energy from solar collector to the tank.Ejai solar water heater features:a. Module design, arbitrary combination, harmonize with the ... liquid2) Temperature preservation is equipped with standard electric water heater setting,automatic temperature control exchanger, and increased anode magnesium ... in winter)12) Heat preservation: 72h to 80h13) Electric heater: 1.5Kw to 3Kw split pressurized solar water ...