Do the oust fans move substantially less air than I'm imagining them moving?
Yes, but you can help that by removing the cover. However, I must agree that in a closet sized humi they would be all but worthless. Indeed, get someone to put an outlet in there, and use some small electric fans on low, or let Scott hook you up!
Good luck, sounds like you'll have plenty of room(for a little while, anyway!)
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