I'm in sunny FL and my new hen house is almost done. It measures 3'x4' with a slanted roof. The door to the run closes so why can't I add a heat lamp and brood my chicks in the hen house? I'm assuming you can't do this because I haven't seen anyone else doing it. It seems like the hen house is just as draft free and even more secure than any brooder I could make and keep inside, especially since I have 3 curious cats! Also using a broody hen to raise chicks means the chicks live in the hen house... so why can't I do it that way? BTW I'm new! My chicks arrive the week of June 14th so I have plenty of time to figure out what to do. Thanks in advance chicken lovers!