I have bought solar lights for inside and outside the coop. But with 90+ degree heat and high humidity what type of fan can I get for the coop? I have a fan on the brooder right now which is on my back porch and they love it! I'm also putting cold water out twice a day and cold water in a pan for them to stand in. But I want a fan to draw cool air into the coop. It would have to be battery operated or solar. I have not found one that I think will work yet. Suggestions? I've attached a pic of my coop.