Ok, i have looked all over the web and can't find answers to this specific question. I just bought 3 1 week old buff orps today. I put them in the henhouse in a 2'x4'x2' wood box covered on the sides and top with 1/2" hardware cloth. They have food and water and 2 red heat lamps over the center of the so called brooder. There are 20 layers in the hen house also but can in no way get to the chicks. The house is 8' X 10' X 8' . i closed all the windows in the hen house. i put mover blankets on the sides and ends of the brooder just a few mins ago because its going down into the 40's here tonight in florida. The temp is in the mid 80's according to the wireless thermometer. Every thread and link i have read has stated that the chicks need to be in your house for 4 to 6 weeks. Can someone tell me why i might be making a mistake buy putting them out there so soon. They are local feed store buff oops with no mother. When i noticed the temp go to 85, i went out and put mover blankets on the ends and sides. They are not clumped up under the lights so i think they are ok. Any opinions on this subject. Im still new and always learning. I don't want to jeopardize the chicks.