Inner and outside water tank shell all are made of Colored steel sheet, welded by argon arc. Water is pure and drinkable.
Heat insulation of water tanks adopts polyurethane foam, thickness is 55mm
Silicon rings to connect and seal them
The tubes and supports are adjustable, power bearing is average, and can assure the vacuum tubes to use long time.
Whole glass vacuum tubes adopt super hard borax and silica glass
Absorb rate: ≥ 93%, thermal radiation rate: ≤ 6%
Resist 25mm hail, using life can last 15 years.
Temperature when exposed to sun without water: 250, 2.5hours to boiling if using single tube
If you use electrical appliances to aid heating, to switch off the power supple before bathing.
To test the water temperature before using, in order to avoid scalding.
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