Product Name:Balcony Solar Water Heater
Model:YYJ-B01
Circulation Type:Indirect / Closed loop (Active)
Heating System:Passive
Connection Type:Direct-Plug
Material
Inner tank:SUS304-2B stainless steel with thickness 2.0mm/2.5mm
Outer tank:Galvanzied steel -0.5mm
Insulation:polyurethane - 50mm
Frame:Aluminium alloy-1.8mm
Vacuum tube:Cu-S/S-N/AL-58-1800
http://www.ejiasolar.com/