I had farm chickens growing up in OK. Now I have some baby buffies arriving next week. I drew up my own coop plans and it is coming right along. My coop is 4x4x2.5. I plan on litter composting and it will be a tight coop with ventilation at the roof line. ? is. I would like opinions on heat or not to heat. It gets to 20 below here. It is a dry cold. I purposely purchased chicks of a heavy feather, but just am not sure. Honestly my hubby will probably be trying to sneak them into the garage when it is real cold. But I would like to preven t that if possible.