... Pressure Solar water heater system 1.EN12975&SRCC 2.Anti-freezen&pressurized 3.15 years wrantty Detailed products DescriptionPressure Solar water ... preservation equipped with standard electric water heater setting,automatic temperature control exchanger,and ... Solar working station8) With heat pipe:anti-freezng more than minus 35 degrees centigrade9) Water capacity:150L,200L,250L,300L,500L10) Pressure ...