"What must we say?"
I stumbled on this ancient video recently and heard a sort-of contrarian statement:
"don't EVER say that hot air rises..because that AIN'T so"
(just watch the first 1:30 minutes)
"What happens is that the less dense air is pushed up by the colder air"
I had never heard it put that way ...hmmm.... very interesting
So yesterday Allison Bailes Posts a Blog on the same subject.
A good blog..by the way
And this "Heretic" (Bud Poll) comes along saying almost the same thing as Professor Sumner Miller
and he posts a link to his "worksheet"
I like Bud's words and illustrations ... they are helping me to finally undserstand Stack Effect
Thank You ......Bud Poll
Posted Jan 31, 2012 10:11 AM ET
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Can R-10 XPS foam against concrete and R-15 mineral wool batts between framing be combined in a basement?