Last spring was our first year with chickens, both meaties and layers. We didn't know better and put the brooder in our playroom. By the time they were ready to go out to their tractor, their was a thin layer of "dust" on everything in the room (nasty). So this year we are only doing meaties and I was wondering if they have a heat lamp, can they be kept out in the unheated garage/shop? I live in Michigan so it does get quite cooler at night. I'd probably get them in early May.