inner tank
stainless steel SUS304-0.5mm
vacuum tube
QB-AL-N/AL-47-1500
outer tank
stainless steel SUS201/Galvanized steel
frame
stainless steel SUS201-1.2mm/ Galvanized steel-1.5mm
Solar heat storage tank diameter(mm)
310/410
Thickness, insulated(mm)
50
Electric heater connection(inch)
1