Well if your old 75k has been sufficient then the new 96% 75k sh

来源: borisg 于 2014-01-13 12:49:14 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (150 bytes)
To have one exceeds the need is actually not better, because the furnace runs shorter and more frequent cycles. This will reduce the life of the unit.
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