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Green Power Solar Heat Tubes

A copper tube protrudes from the vacuum glass tubes. This contains water at an under pressure of 10 - 7 Bar. This means that the boiling point of the fluid is around 20º C. The vapor / steam rises. The sealed tube emits its heat to the circulation water with Glycol (anti-freeze solution), which is then pumped at a maximum of 6 bar into the circulation system. All copper tubes that protrude from the vacuum tubes (e.g. 16 in any one collector) are switched on in parallel.

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