i have an old coop which was on my land when i bought the place. it's approx 8x16 or so i sectioned it off 1 side for the hens and the other side for storage of their feed/ extra bedding. it does have electric to it but currently not working i think the ug cable is bad, so i will be replacing that soon. the coop is made of a 2x6 frame resting on cinder blocks which are at ground level, its framed w/ 2x4 and has a door and 2 windows which face south it gets hot in there in the summer but i think that it will heat up nice for the girls during winter, its also near the back of my property and is sheltered by woods from the north/west winds. also the coop has no insulation i did however go around and seal up all the gaps i saw in it w/ that expanding foam stuff b4 i got the hens. its outside is 1/2 in plywood and has a new roof of 3/8 ply wood and fresh shingle roll roofing, also has vents on each end near the peak of the roof, which have me concerned as the hens like to roost up high during the night. i live in ct and the weather here during winter gets weird sometimes frigid cold 0 or less and sometimes it may be really warm like 50. mostly it ranges about 20-35 during the days and 10-15 nights. i know i will be getting a heated waterer, what else should i be concerned about? i tried to get winter hardy birds i have buffs and some aracuana mixes they seem to have some heavy ploomage like the buffs. thanks for any help, jim