... your house.Components for split pressure solar water heater: This system is composed by solar collector, solar water tank(solar boiler),solar workstation(including intelligent ... tubes,30 tubesTube typeBorosilicate glass 3.3 vacuum tube with copper heat pipeTube outer diameter Ø47mm, ... Ø58mmLength of vacuum tube1000mm,1200mm,1500mmAbsorbing coatingCu-SS-AL-N/ALMaterial ...