Chicks need: 1) Space: To avoid picking problems and so on. They WILL grow FAST. 2) Heat: Start at around 95 and adjust based on BEHAVIOR of YOUR chicks. Do what THEY are TELLING you based on how they act. Huddling = cold, panting = hot. You really don't NEED a thermometer in there. You just have to observe them. No two chicks or situations are the same. 3) Draft free place to stay: Drafts can chill chicks so solid walls are a good idea no matter where they are. Just make sure nobody hops to the wrong side and can't get back to the heat. 4) Food and water: Make sure you can refresh these easily when needed. Being able to check on them is a bonus. With that said. You can brood them ANYWHERE that meets these requirements. Kitchen, bedroom, basement, garage, outside, in a barn... list goes on. As long as their basic living requirements are met, you can house them there. There are NO hard dates to do things, NO perfect age, NO right way to do everything. EVERY situation is DIFFERENT and so you'll need to watch the birds and how they act to determine if they need more heat, less heat, or can go into the run or not. They are tougher than most think, but if you keep one set of chicks at 80 deg for 10 weeks, they are going to have a heck of a time going out to 40 deg weather, while 6 week old chicks brooded at increasingly lower temps and being acclimated will have no problem in 40 deg temps. That said, your 6 week old seabright bantam chick is not going to be able to take the weather the same as a 6 week old Cornish rock meat bird. Just watch their behavior and adjust accordingly. Only you can see how they are acting and can change things accordingly. Thanks for listening and hope this gives some insight.