| 摘要 |
A hot water storage container is provided with a hot water discharge at the top and a cold water discharge at the bottom. To reduce mixing of water, a vertical water guide shaft (7) is formed in the storage container, and a flow line (6) fed by the heat source (5) opens into this shaft. The feed water ascends or descends in the water guide shaft (7) in correspondence with the temperature difference at any given time. <IMAGE>
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