Features:
1) It is designed to be both modern and playful but at the same time elegant and tasteful, capable of adapting to different angle roofs, and so is called" transformer".
2) Designed by the standard of getting heat in winter
3) heat-wasting restraining technology
4) Acceleration of hot water circulation TG technology
5) High temperature vacuum heat collecting tubes with new triangle elements
6) The thickened heat preservation layer of high density
7) Large-angle specially adapted to high and cold areas
8) Stronger wind, snow, acid rain, sea wind erosion, hailstone and other bad weather conditions resistant ability
9) More coordinate with the architectural environment
10) Easy installation and be installed on the roof or at ground level
11) Efficient; as high as 55% annual efficiency - far superior to flat plate
12) The tubes and supports are adjustable. The life of the vacuum tubes is 15 years, Whole glass vacuum tubes adopt super hard borax and silica glass
13) Absorption rate: =93%, thermal radiation rate: =6%
14) The using life of the whole system can last for 15 years
15) If you use electrical appliances, it will begin to work when the temperature of the water is below 60°C, and will switch off automatically when the temperature reached 60°C.
16) You have to test the water temperature before using, in order to avoid scalding
17) The hot water system fitting for families and work units in mass storage and large trend

Specifications:
Inner tank: Pressurized food grade SUS304/2B stainless steel with optional 0.31mm, 0.35mm,0.40mm,0.50mm thickness;
Outer tank: First choice: Aluminum zinc painted steel cover with button inside (silver, white) , strong and anticorrosion effectively welded by argon arc; Second choice: SUS304-2B stainless steel with optional 0.31mm, 0.35mm,0.40mm,0.50mm thickness;
Capacity: 90/108/120/135/1144/162/180/216/270/288/306/324L;
Vacuum tube: 3.3 Pyrex glass, magnetron sputtering ammonia- aluminum dual absorption coating with a thickness of 1.6mm, diameter 47or 58mm and length 1500or 1800mm, resisting 28mm hail;
Tube quantity : 15,18,20,24,30,32 and 36PCS;
Heat insulating layer: improved polyurethane integral foaming with thickness 50-65mm;
Frame: First choice, coated galvanized steel with 1.50mm thickness; second choice, stainless steel SUS304/2B with optional 0.31mm, 0.55mm,0.88mm,1.10mm thickness;
Fasteners: stainless steel screws
Seal: imported silicone rubber polymer ringing to connect and seal them;
Temperature: 45-95 degree Celsius, temperature is over than 40-54 degree in the winter
Pressure: 0Pa
Heat preservation: 72hrs
Hail resistance: 28mm
Non-pressurized solar water heater principle
The non-pressurized solar water heater thermo-siphon system, its storage tank and evacuated tubes are installed as one unit on building roof. The storage tank is connected with the solar water heater, and many all glass evacuated tubes are inclined insert into the tank. The heat gathered by the evacuated tubes heats the water inward the storage tanks. Hot water goes into the storage tanks cause hot water rise up high. And cold water will go down into the evacuated tube to be heated again. Run by natural circulation, the system can work without electricity. The circulation heats the water in the tanks continually. The hot water flow rate of this kind mainly depends on height difference between the water tank and the hot water shower head.