On Thu, 03 Jul 2014 16:32:58 -0700, Jim Thompson
wrote:

...snip...

I run UP all seasons.... moves the air within putting myself in a
wind.

...Jim Thompson

EXACTLY! In the summer cooler, in the winter the hot ceiling air does get
a chance to slide down the cooler external wall, heating them a bit.
....I'm going to go change them all back. Experts! phewey!