you need a whole house fan..

來源: jy101 於 2012-06-17 09:00:52 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (99 bytes)
回答: 聽說 attic 裝fan能讓室內降溫10度 由 海賴 於 2012-06-16 21:55:34

attic fan is a very small, only for ventilation. if cool a house, you need a whole house fan..


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