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1. The sun heats a non-toxic, freeze-proof solar fluid in a solar collector on the roof.
2. The controller detects that the solar fluid is hotter than the water in the hot water tank.
3. A pump in the Solar Station pumps solar fluid from the collector to the hot water tank.
4. The solar fluid flows through a pipe coiling inside the hot water tank, and heats the water in the tank.
5. The hot water is available for use in the house.
6. The solar fluid is pumped back up to the collector, where it is once again heated by the sun.
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