| 摘要 |
The water-heater comprises a tank (6), an electrical resistance (7) at the top of the tank which extends over a height of between a third and a half of the height of the tank, a solar collector (1) and a circuit connecting the collector (1) to the tank. The output pipe (13) enters the tank at the top and opens into the tank at a point substantially below the lowest point of the electrical resistance (7). <IMAGE> |
