Let it be known, I am a newbie. That being said, here goes. I have some 3 week old chicks that I just kicked out of the house & they are doing fine. We live in Georgia & it is hotter than Hades out there. I did wait until they had some of their big girl feathers before making the transition but frankly, it is warmer out there than in the house, even with the bulb on them. I put them in a dog crate inside the chicken run so they would be with the big chickens but safe. I then locked them in the cat carrier with plenty of hay at night for extra warmth (and for my peace of mind). I have been taking them for outings since they were a week old; letting them play under the bushes eating rollie-pollies, that sort of stuff. But God as my witness, I will never raise chicks in my house again. Lesson learned #102