How long have you had 8 chickens in that coop/run. Max number in that size should be 4, I think I read it's 16 square foot. Assuming your feed and water etc. are inside that coop you have less then 2 square foot per bird.
Back on topic, I have one of the heated dog bowls mentioned above. I have it sitting up a cinder block so it is a little higher and it does fine, they don't get in it. Last winter I had 10 hens and I would dump a gallon jug a day in it and that was enough for them.
Back on topic, I have one of the heated dog bowls mentioned above. I have it sitting up a cinder block so it is a little higher and it does fine, they don't get in it. Last winter I had 10 hens and I would dump a gallon jug a day in it and that was enough for them.