熱水瓶開開關關會比較耗電嗎? - 家電
By Hardy
at 2008-02-12T17:26
at 2008-02-12T17:26
Table of Contents
如果等到需要喝熱水時,再讓熱水瓶插電加熱,
一天大概用二次熱水瓶,間隔時間超過六小時,
一旦插電後,會使用一至三小時不等,
這樣會比一直插著電還要省電費嗎?
謝謝~
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