... tube, China Hitek Solar Co., Ltd. The split solar water heater is composed :1.heat collector,2.storage tank,3 ... principle:1) When the temperature of the heat collector reaches the set value, the controller will make ... of house. And the collector can be put on the inclined roof or flat place.2 Module design, ... Angle15°~ 90°Warranty10 year NSC-58/70 solar collector for Split Solar Water Heating System