I did - hubby refused to have them in the house - so I built a brooder out of the rigid foam insulation panels - started with a 2 x 4 area, gradually increased the size as they got bigger, until I just took it apart and let them have the whole coop. I WOULD NOT use the foam panels again because they started pecking the foam and eating it! Look at the brooder section - one guy just used big cardboard boxes he flattened - I duct-taped the panels together - they held fine. My only concern was keeping them warm enough in mid-march - it still got pretty cold, but they did ok with the heat lamp. Yours should be fine - just check the temp - they need pretty warm - 95 deg the first week. I think the reason most people don't brood them in the chicken house is because they have other chickens - this was my first batch -it worked fine.
