AC is cheaper, heat pump will be at least 50% more costly

來源: pyramid 於 2012-01-12 07:31:28 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (100 bytes)
回答: 我兩個月以前... 由 狼的傳人 於 2012-01-12 07:23:37

估計 DFW 不需要 heat pump, so your price is cheaper, not a surprise. his should be heat pump.

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