"Sweet says they don't worry about cold weather until it stays below zero during the day. "If it drops to 15 below and then warms up during the day above zero, you're ok. If it stays below zero it gets harder. The water tanks and everything get more ice build up and it's a little harder keeping the water running in the colder parts of the barns."

"I read somewhere that each cow generates 2,350 BTUs. We have 255 of them in here keeping this barn warm," Sweet said. "It's hard to believe a barn this size there's no heat in this beside the cows." Sure enough, some sources say cows give off 4,500 BTUs per hour. The barn does have insulation in the ceiling and end walls, and the side curtains have an R-value of 2. They leave the equipment they use daily in the barn so it doesn't freeze up."