Garage Door Insulation

The top draft hoods is what I meant for the top vents. I think it's around maybe 8 years old? It was replaced before I moved in. It's a Bryant Plus 80v, I guess the 80 is 80% efficiency? I know what you're talking about with the high efficiency and the PCV intake/exhaust pipe. So I guess I'm stuck with leaving those ones on the floor open...

Heat loss behaves as though it has intelligence. It seems to seek out and utilize the path of least resistance. You cannot adequately insulate a ventilated space unless the ventilation is inadequate.

Adequately ventilated space maintains outside atmospheric conditions or reasonable close to them.
 
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