direct thermosiphon solar system
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Inner tank: Food Grade Stainless Steel by argon protect welding, supply water quality and drinkable
Outer shell: Galvanized Steel coated uncorrosion layer
Heat insulation layer: 50-60mm import polyurethane integral foaming
Frame:Galvanized Steel coated uncorrssion layer, both install inclined and flat roof.
High Pressure Cold Water In:6 bar cold water to tank from Feeder or Electric Auto Valve.
Automatic Heating Element free
1% spare parts are free
5 years quality warranty
All install document are free