On Saturday, September 19, 2015 at 9:28:30 PM UTC-4, JJ Sinclair wrote:
The options on store bought equipment are; run the fan 24 hours a day OR run it day only. I don't see any reason to run it nights only? My idea has always been to let fresh air in low at the aft end and let (fan) it out high at the other end. Gets hot enough to peal Velcro inside the trailer, so any circulation has got to help.
JJ

JJ, I in my first sentence I intended to say day not night. Meaning why do you want to run a fan 24 hours a day instead of during the day only.