Compact Non-pressurized Solar Water Heater

Product Name:Non-pressurized solar water heater Model:YYJ-R03 Circulation Type:Indirect / Open Loop (Active) Heating System:Thermosyphon (Passive) Connection Type:Direct-Plug Material Inner tank:SUS304-2B stainless steel with thickness 0.4mm/0.5mm Outer tank:SUS304-2B stainless steel with thickness 0.4mm/0.5mm Insulation:polyurethane - 50mm Frame:Stainless steel -1.5mm Vacuum tube:Cu-S/S-N/AL-47-1500/58-1800 http://www.ejiasolar.com/