Unpressurized Solar Water Heater

solar water heater SG-S serials is Thermosyphon solar water heater, That is a kind of solar water heating system that solar collector and storage are connected together with the cylinder storage on the top and collector panel on the bottom. There is no need of pump to push the fluid and no need of pipeline between the collector and storage. It is a simple and safe solution to get heat power from the sun. Model NameSG-S solar water heaterInner tankSUS304-2B/316L [1.2mm/1.5mm]Insulation layerPolyurethane foam [55mm]Outer tankStainlessSteel [0.4mm]BracketGalvanized Steel [1.5mm]Evacuated tubeBorosilicate Glass 3.3 Advantage: 1) The material of the outer tank is Galvanized Steel. The material of the inner tank is SUS304 2B /SUS316Lstainless steel. 2) The life of the vacuum tubes is 15 years. 3) Stable and reliable performance, economy. 4) Temperature when exposed to sun without water: 250°C, 2.5 hours to boiling point if using single tube. 5) It resists no more than 30mm hail. 6) Heat preservation: at least 72 hours. The temperature go down 3 5°C per day 7) Optional accessories: assistant tank, electric heater, reflector ,automatic inlet water valve, Magnesium anode, ect. 8) 5 years warranty. Product Model Tubes Qty.Tank (L)Absorbing Area (m2)Weight (KGS)Dimension (L×W×H)Qty. per 20FT/40FT/40HQSG-S420-1500/47-1515100L0.75491400*1150*170063 / 126 / 154SG-S420-1500/47-1818120L0.90591400*1360*170056 / 112 / 136SG-S420-1500/47-2020135L1.00651400*1500*170051 / 102 / 124SG-S420-1500/47-2424160L1.20791400*1780*170044 / 87 / 106SG-S420-1500/47-3030200L1.50951400*2200*170036 / 72 / 88SG-S470-1500/47-1212100L0.60391800*940*175064 / 128 / 156SG-S470-1500/47-1515130L0.75521800*1150*175055 / 109 / 133SG-S470-1500/47-1818155L0.90621800*1360*175048 / 95 / 115SG-S470-1500/47-2020170L1.00681800*1500*175044 / 87 / 106SG-S470-1500/47-2424205L1.20821800*1780*175038 / 75 / 92SG-S470-1500/47-3030260L1.501001800*2200*175031 / 63 / 76SG-S470-1800/58-1212130L0.92521800*1050*175058 / 115 / 140SG-S470-1800/58-1515165L1.15621800*1290*175047 / 95 / 116SG-S470-1800/58-1818200L1.37711800*1530*175041 / 82 / 100SG-S470-1800/58-2020220L1.52781800*1690*175037 / 74 / 90SG-S470-1800/58-2424265L1.83921800*2010*175031 / 63 / 77SG-S470-1800/58-3030330L2.291051800*2490*175026 / 51 / 62