الوصف

compact none pressurized solar water heater features as follows: 1) the material of Inner tank:food level stainless steel:SUS****2B:thickness:0.*1mm or 0.4mm 2)the material of outer tank: color painted steel plate, thickness, 0.*1mm 3)brackets or support :alluminum alloy or stainless steel, thickness:1.5mm 4)evacuated glass tube:AL-N/AL OR SS-C/CU & AL/N 5)the size of outer tank diameter:**0mm or**0mm 6)the size of vacuum tube:ø*7 ****0mm ; ø*8****0mm ;ø*0 ****0mm 6)Insulation :polyurethane foaming:*0mm 7)auxilary water tank:*0litres (to be optional) 8)electrical heating back-up (to be optional ) 9)intelligent controller(to be optional) *0)magnesium rod(to be optional) *0)silicone seals and rubbers and so on certificates: ISO***1 , CCC and CE and so on