My paddock doesn't have any trees. The horses share a 10x12 run-in shed and seem content to share. I feel bad that it is so hot. With the temp and humidity it feels like 105 outside. I just went to hose them down and they were sweating from just standing around. I was thinking about getting one of these. Has anyone ever tried it? I will also need a solar charger because I don't have electric in the run-in, does anyone know what size charger I will need?
I get what you're saying
You really need to ask that question of the manufacturer.
In a run in shed you're mostly going to be just moving hot air around though
A misting system might work better for them if you could figure that out
Not sure about finding a solar charger for a box fan, but if you want to cool down your run-in shed you can do what Palomine suggested. I worked at a barn where during the summer months we put a soaker hose on the peak of the roof and let the water run down the tin roofing.Iit would cool it off inside by a few noticeable degrees and didn't require a whole lot of water.