The characteristic:
1 the vacuum tubes absorb the solar energy and transfer into the heat energy, then pass it to the u pipe, it can get high temperature.
2 there is no water in the vacuum tube, so the tube will not break in the winter.
3 it is steady and credible.
4 it can be combined with the architecture perfectly.
5 it can be combined with existing pipeline.
6 it can still operate in the event of occasional tube breakages.
The details of material:
Outer tank: alnico 1.5mm
Manifold: 22mm thickness 2mm
U copper type: 8mm thickness 0.6mm
G.W. 50.6kg
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