* Compact non pressurized solar water heater 100/120/150/180/200/240/250/300L * Stainless steel Inner Tank: SUS304-2B 0.4 mm thickness * Stainless steel Outer Tank: SUS202-BA,0.41mm thickness * Stainless steel Bracket. SUS201, 1.2mm thickness without plastic cover, 27¡ã * German Insulation material, 50mm Poly-Urethane Foam * Three target vacuum tubes, 58mm*1800mm£¬It resists 25mm hail * Heat preservation: 72 hours * 15 years design life * included attach automatic filling water Tank and electrical heater * Zincification painting branket is option. |