Before I ask my question, it must be known that I live in central Texas. Temperatures in the summer months(late May-early November) EASILY reach over 100 degrees and can reach 115 degrees with the heat index. I'm sure it gets even hotter in enclosed buildings with little ventilation. Heat stroke and death is a very real and common thing for all animals here, including chickens, if proper precautions are not taken. So please, don't give me "this will probably work" advice. Many chicken lives are at stake here! Moving on, I've got a metal shed that's approximately 8x10. I've been making due with putting sick or baby chickens inside the house or on the back porch, but I've got a small house and an equally small back porch. They're almost always in the way and, as I'm sure we all know, chickens can get loud and this house has thin walls! So, I'm wanting to convert this shed into a recovery ward/baby chick building. Sick chickens will still be coming inside so I can monitor them, but there's no reason for me to keep chickens who're not sick, but not yet well enough to be with the others, inside the already cramped house. Especially if recovery can take months. The problem is this shed is, like I said, metal, and it's enclosed. As in, no windows. It is well covered by the tree beside it, but it still gets hot in there. I can leave the doors wide open, which means almost an entire side of the building is open, but again, it still gets hot. So what I'm thinking I may do is put a box fan in the building, and have it on it's highest or second to highest setting during the day. To prevent a rat infestation, I close the doors at night, but in the morning the doors are opened again. I have had broody hens incubate and raise chicks in that shed without even a fan on, just the doors open, so I suppose it doesn't get boiling hot in there. Is just putting in a fan enough, or is there something else I could do that won't break the bank? Should I also put a thermometer in there to monitor the temperature, and if so, what's the highest safe temperature for chickens? It may seem a bit odd that I own plenty of chickens and am asking this question, but, none of my coops are enclosed. At most, there is one solid wall, and the other walls are wire. I've had no deaths with this open air method, but I can't exactly do that with a metal shed!