YuWang Wall-Mount Split Type Solar Water Heater Yuwang Wall-mount Split Type Solar Water Heater is the high-tech product in combination with the patented heat pipe and independent intellectual property rights.this product adopts high-tech memory alloy to control water tenmperature and water amount so ensure adding water when it can be heated,automaticallyturn off when water is full.It completely eliminates such defects as comlplicate operation,high fault,ect,which is suitable for both young and old .It has long service life.No need electric source ,it can automaticall control temperature and add water according to weather ,it will add more water in the sunny weather ,and less water in insufficient sunshine weather.Even if in the coldest winter,the user can enjoy the hot water at about 50°; (1)When water temperature inside hot water tank is lower 45,it does not feed the water,so user can utilize the hot water for 24 hours; (2)The supporting DC electric heater and other units form dual-energy water heater system,which can boil the water that you need,so it is convenient and energy-saving; (3)The water temperature inside hot water tank is uniform,comparing with common water heater,the consumption of cold water before using hot water is less,and during taking shower,the water temperature retains invariable basically. SPECS&MODEL OF PRODUCT MODEL QBF1/100/2.0/0 QBF1/120/2.4/0 QBF1/150/2.0/0 QBF1/200/2.8/0 QBF1/300/3.2/0 Light area 1.3 1.6 2.0 2.7 4.0 Water Tank Cubage 100L/125L 120L/150L 150L/187L 200L/250L 300L/375L Qty of Vacuum Pipes 10 12 15 20 30 Innermaterials Food-class :SUS304 2BThickness:0.31-0.42mm Exteriormaterials Colored steel plate or stain-less steel plate Thickness:0.326mm Bracketmaterials GalvanizingPlattie plastic spraying or aluminum alloy materials Heatpreservationand thickness Thickness of polyurethaneWhole foam52-60mm Remarks:other specs can be customized