Okay, I was anti heat and understand the pros and cons of heating a coop. so what is considered a heated coop? It's been getting into the single digits and teens here in Ohio. The girls have an 8 by 12 foot shed coop that we had built for them, so it's a large space. Temps inside the coop have been between 20 and 30 degrees. I have 6 girls in this coop. We did end up installing a heat lamp, very securely, about 6 1/2 ft up and 4 ft away, yet still aimed at roosts. Coop temps, like I said, are still 20 and 30, with outside temps 18 degrees or so at night. I do apply Vaseline to combs. Is this terrible? Their coop is by no means cozy. My aim is to take the edge off at night. Even considering a timer for maybe 2 hours late night/morning. Any thoughts/suggestions?