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a. Solar heat collectors are seperated with cylinder, and combine with building perfectly. Cylinder can be installed to any place;
b. No water go through the vacuum tube make that the tube has no incrustation , Antifreeze and tube explosion;
c. Working seperately and circulation independently make the water in tank to be fresh and healthy;
d. Working with pressure, evan output of water make the bathing to be happy;
e. Adjusting the water temperature automatically makes the system to be more safety and stable.
The principium for balcony solar collector
