Vacuum Tube Solar Water heater 

Working principle

 1. With high efficient vacuum tubes as solar collector, absorption percentage 91-94%;

  2. Outer tank is made of solr steel with beautiful surface

 3.  Inner tank is made of SUS304 or 316 with drinkable water ( welding by argon arc or high frequency);

 4. High quality galvanized or stainless stell ( aluminium alloy) as bracket to heep steady;

 5.Insulation layer: 50-60mm polyrethanes foaming;

6. Vacuum tube number is optional from 12 t0 40 pcs;

7. Capacity: 100L to 350L