水管應該做成heat sink的結構，阻止熱水因為熱脹冷縮上升，減少能源浪費。heater的安裝說明書上有的。

來源: chuwang 於 2024-10-29 07:08:09 [舊帖] [給我悄悄話] 本文已被閱讀：次

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