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

来源: pyramid 于 2012-01-12 07:31:28 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (100 bytes)
回答: 我两个月以前... 由 狼的传人 于 2012-01-12 07:23:37

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

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