We're in Iowa. We get extreme temps both ways. My coop is 6 x 8 and I have 8 hens. The electricity is hooked up and the lights are functional, including the timer for 16 hours of light during the winter. Wondering how I should heat this baby for the super cold days and if there is a unit that works both ways - heat and cool? Maybe similar to what is used in small motel rooms? Maybe that's overkill ... HA!