Absolutely below detectable level

來源: biglow 於 2009-05-21 16:28:23 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (315 bytes)

Hot air is provided by blow cold air through a heating core which using coolant circulating through Engine. Those are waste heat and will not cost extra energy. The fan takes some wattage, but since the regulator of the alternator chops off more at low load, the real extra energy cost for hot air is very litter.

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