1 thing I don't understand

來源: 用戶名被占用了 於 2011-12-21 12:28:05 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (315 bytes)
回答: 出來了出來了 由 coorslight969 於 2011-12-21 12:06:43

The pressure of cold water and hot water are not the exactly same all the time. In my home, hot water has higher pressure than cold, because they come from different sources. If you make a loop from hot to cold circulation, eventually part of cold tube will become warm. It will burn more gas to maintain so.

所有跟帖： 

• 都是瞎折騰 - 熱水裏麵往往有軟水劑，混到冷水裏不太好 -mc3361- ♂ 給 mc3361 發送悄悄話 (0 bytes) () 12/21/2011 postreply 12:33:39

• probably for radiator, but not for tap water -用戶名被占用了- ♂ 給 用戶名被占用了 發送悄悄話 用戶名被占用了 的博客首頁 (0 bytes) () 12/21/2011 postreply 12:39:49

請您先登陸，再發跟帖！