In January 2010 we were in Tucson Arizona when an unexpected cold front hit. Night temperatures got down around 10-15 degrees Farenheit. The velcro sealed flaps were simply not a source of drafts at all.
We also camped at Flagstaff a few days later. Again, no problem from cold air coming through the flaps. The grey water tank froze up, but inside the TM we were fine.
Tom
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TM 3023
TV 2010 F-150 4.6, factory tow pkg, air bags
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