I have my chicks in a brooder since it seems to be the thing to do. However I don't understand why I need one rather than just letting my chicks have the run of the full coop. The brooder is 18 sq. ft. (2 ft. tall) setting on the floor of an 80 sq. ft. coop. The water and heat lamp hangs from the ceiling of the coop and would still be in the same place even with the brooder gone. The brooder just seems to be a containment device keeping the chicks packed into a small area. Since the coop is fully enclosed, there is only a draft when I open and shut the door of the coop or open one of the windows. There are no adult chickens in the coop. Does anyone here find a brooder is unnecessary for your coop?