The vacuum collector solar is the most flexible on the market. One of its greatest advantages is that it can be suitable to meet any volume of water.
The heat exchange occurs by natural convection inside the glass tubes. Therefore, there are no motors for water circulation, avoiding the consumption of electric energy and expenses with maintenance of the electric motor.
There is no possibility of freezing the internal water, because the insulation is done through a vacuum between the glass tubes.
Faster water heating when compared to the plate system.
The solar radiation absorption index of vacuum tubes is between 94% and 96%, while traditional systems absorb only about 60%.