Pre -Heated solar water heater
Intergrated pressured Vacuum Tube Solar Water Heater with HighEfficiency
**Inner and outside water tank shell materials: 304 food-gradestainless steel plates;
**Water is pure and drinkable
**Heat insulation of water tanks adapts polyurethane foam;
**Silicone rings to connect and seal;
**Tubes and supports are adjustable;
**Power bearing is average and can assure vacuum tubes to use forlong time;
**Whole glass vacuum tubes adapts super hard borax and silicaglass;
**Electrical appliances are used to aid heating and switch-offpower supply before bathing
**OEM orders are welcome