... water heater The CN-YS02 type has the stainless shell,so it can be used in the ... /1500mm,58/18002,vacuum tubes:15pcs,18pcs,20pcs,24pcs,30pcs3,Outer tank material:202stainless steel with 0.31mm4, ... heater:220v-240v 1500w/3000w7,frame material :202 stainless steel8,we could product for customer'special needIt ... has 15years long life span ,and the vacuum tubes can work individually,so if the only ...