Hey everyone, I'm fairly new at this whole thing- just got two RIR this summer. I have a small A-frame coop for them. They are doing great! I'm concerned as it gets colder though... in Ohio it's regularly in the 20s and can go down as low as 0 degrees F in the winter. I'm just wondering what to do for winter. I've read about putting a light bulb in the coop for warmth, do I need to leave it on 24/7? Also, do I need a metal waterer with a heater underneath? I just have a cheap $10 pet watering thing from WalMart. My girls are free range during the day- I have a 12" by 12" hole they hop in and out of... I was thinking of putting a clear plastic flap over the door to keep the wind out. Will they figure out how to push through this? Lastly, my coop is about 10" off the ground. Will I need to put extra wood chips down to keep the floor from getting cold? It's 3/8" ply. Thanks in advance!