Water tank :150LSUS304-2B INNER TANK,GALVANIZED STEEL OUTER TANK50MM POLYURETHANE FOAMVacuum tube:13tubes,it can be 13 to 18tubes as well.frame:galvanized steelExchanger:copper material,40meters long,1mm thickness,12meters diameterHeat pipe vacuum tube,it can increase the work efficiencyAssistant tank:12L pressured oneController system,it can control the water level,temperature display
Solar water heater(Imagine V6)