We got 14 chicks the first week of July. It has been 100+ degrees for most of this time. I have my brooder box in the garage, there is a small fan that kind of blows over the top of the box for air circulation and we have the windows open as well as the side door. We have made sure they have plenty of fresh water at all times. The only thing "special" we have done for them is to put a frozen water jug in the brooder in the middle of the afternoon. My chicks are all thriving and doing well. My question (and thought process) is: Does it make sense to take chicks in the house, get them used to air conditioning and then turn them out in the heat later? My hens and one roo all free range, they have a nice shady corner of the field where they spend the hottest part of the day, and I have not lost any birds to the heat. It seems to me that they are better off if they are used to the heat from the beginning.