I have a wire brooder. I usually get my chicks in Oct. I put the brooder in the barn with a brooder heat lamp for the first month. I now have a nursery coop. The nursery coop has a small run. I let them out during the day into the run. They can go in and out of their coop whenever they want as I keep their waterer and feeder in their coop. I put the brooder in for about a week but also have some heat lamps. Now that they are feathered I only leave the lamp on at night. I have it on a timer, they can get get into their own comfort zone.
