... Cu-N/AI coating absorbing coating47*1500mm,58*1800mm.2.water storage tank:SUS304-2B food-class stainless steel :3.exterior ... use hot water above 45 degrees2cold water can not poure into storage tank, water tank only store hot water,so hot water are available ... not accordant, compared with common hot water project ,abandoning cold water before using hot water . and the temperature is invariable.during ...