... , The max. hot water temp. can reach 95 °C. Material of Model:a, The heat-absorbing material of vacuum pipe is made of ... ,150L,200L,300L,360L, non-pressurized water tank.f, Heat preservation: 72h~80h, 50mm polyurethane foam inside water tank. ModelGross absorber area(sqm)Tuber ... -303.84581800302802.30142DK5818-364.6581800363502.90162 Vacuum tube stainless steel solar water heater