| 摘要 |
The system has a hot water tank (10) whose lower region (12) is heated by a solar collector and a heating coil and whose upper re-heating region (11) is re-heated by a hot water charging pump and a heat exchanger of a heater when there is a heat demand. At least two sensors (v1,v2) in the upper region to detect the thermal content and the temperature are arranged one above the other; the lowest is selected to cover the maximum re-heating volume. |
