Hello , my chicks are 4 weeks old . From what I've read you can start to transition them to the coop at this time . Most that I've read though is from spring chicks where the weather is only going to get warmer. In my case the weather will only be getting cooler. I live in east tennessee and the Temps have been around upper 70's to lower 80's for the highs and 50's and 60's for low. My question is should I heat my coop ? Or at 5 to 6 week old chicks will they be OK ? Also being this the first winter coming up should I heat the coop all winter or just let them get used to it?