Un-Druck Solarwarmwasserbereiter

Un-pressurized solar water heater is the most popular solar water heater that with reliable quality and affordable price.It uses using high efficiency vacuum tubes and mature techology that makes it's life-span more than 15 years 1.Reliable and efficient duouble-wall-glass evacuated tubes; 2.Outer tank material:powder coated galvanized steel sheet; 3.Inner tank material:0.4mm/0.5mm/0.6mm thickness SUS304 2B food grade stainless steel; 4.Frame material:1.5mm powder coated galvanized steel both for flat and inclined foof Angle:30/38/45; 5.Superior heat preservation ensured by 50-65mm polyurethane foam insulation layer;