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Old 11-16-2012, 12:39 PM   #7
tooocool49723
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Member#: 67127
Join Date: Jul 2004
Chapter/Region: MWSOC
Location: Belleville, MI
Vehicle:
3.3 I <3/h8 my GF3
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The AC acts as a dehumidifier when it's cold out. That's why it gets turned on. You want to hit your fogged up windows with warm, DRY, air to defrost-defog them.

That's why you can see your breath when you breathe on a cold window: water molecules in your breath. With no AC, your defroster would do the same thing, and you wouldn't be able to see.

Well ok, after a while, it heats up the glass in the window, and you can see, but it takes a lot longer.

<-hasn't had AC in years.
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