Quote:
Originally posted by hockeyfreak
The two little vents in the back also help prevent your windows from shattering when you shut your door, as they let the air pressure escape. So, you might think about that before you seal them off.
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That's a good point.
There are two paths for the air to exit (besides a cracked window). The shortest is through the rear vents, but it certainly can reverse through the air intake for the heating system unless you've got the system on recirc. Then it has to go through the rear vents. It's just a matter of which side of the intake has higher pressure. That's the side the air will flow from.
alan