Solar water heater Specification Models Tubes qty. (pcs) Vacuum tube Mm*mm) Capacity (litre) Quantity Kg/day) Temperature (celsius) Using (times/day) Sy47-1500-16 16 1500x47 98 60-200 45-95 2-6 Sy47-1500-18 18 1500x47 110 80-250 45-95 3-8 Sy47-1500-20 20 1500x47 130 90-280 45-95 3-9 Sy47-1500-24 24 1500x47 155 110-350 45-95 4-11 Sy47-1500-30 30 1500x47 220 140-440 45-95 5-14 Sy58-1800-15 15 1800x58 150 120-300 45-95 4-8 Sy58-1800-18 18 1800x58 180 130-350 45-95 4-9 Sy58-1800-20 20 1800x58 200 160-450 45-95 5-11 Sy58-1800-24 24 1800x58 240 200-500 45-95 6-14 Sy58-1800-30 30 1800x58 300 260-580 45-95 6-18 Sy70-2100-15 15 2000x70 160 150-350 45-95 5-9 Sy70-2100-18 18 2000x70 190 170-400 45-95 5-11 Sy70-2100-20 20 2000x70 210 190-500 45-95 6-14 Sy70-2100-24 24 2000x70 250 230-580 45-95 7-18 Sy70-2100-30 30 2000x70 310 290-650 45-95 7-20 1.Solar collector: vacuum glass tube 2.Inside tank: 2b stainless steel 3.Outside tank: imported steel 4.Insulation: thermos insulator layer 5.Sealing: silicon gel o ring 6.Top tank: steel aluminum 7.Support frame: stainless 8.Angle: 38/45/50 degree