[blueash]

Let me see if all you Einsteins can help me understand this hot air rises thing from high school physics. If it is 75 in my house and 60 outside and I want some fresh air there is no point opening the bottom panel of my window because hot air rises.

If I have a two story home, I certainly would not think about opening the main floor windows, just the second floor, because hot air rises.

And in the winter when I want to keep my home warm I don't have to worry about my front door not having an insulation barrier on the bottom edge because the cool air won't come in because hot air rises?

I noticed that even if my garage door is all the way up, there still is a significant space in my garage that is higher than the top of the opening. I guess no cool air will come into my garage because a low opening does nothing if the hot air can just hide higher up.

Seems to me that if there is a temperature difference between in my garage and the great outdoors that any hole at any height affords an opportunity for heat to move from the hotter side to the cooler side. But I guess not because hot.....

Now has anyone thought about how leaving the door open might allow animal entry?