Specification of seperated pressurized solar water heater: 1) solar collector frame: aluminum alloy 2) inner tank: porcelain enamel 3) outer tank: color-painted steel 4) insulation: polyurethane- 40mm-40%kg/m3 4) cold resistance: -50 centigrade in alpine region 5) hail resistance: 25mm 6) auxiliary electric heater: included 7) size: 58x1800 100l-500l Various
