Ike, thanks for this. I've never raised chickens and have decided to give it a whirl. My husband grew up on a ranch here in Montana and keeps telling me that no heat necessary, that at the most you want a 40 - 60 watt bulb on a timer (the old ones that are hard to find) for light to keep the laying going. He hates chickens and has told me I'm on my own. Although, he will help with construction stuff. The biggest problem I've seen with them in the cold here is at a local place where the "rancher" (and I use the term loosely) allows the chickens to free range, doesn't have a coop for them, never feeds them unless she throws meals scraps out the kitchen door for the turkeys, chickens and dogs to fight over, has three roosters per hen you name it, it's just not right. I'm not sure why she has the animals

She can't find eggs, predation is horrific. Her chickens have had their toes frozen off, the hens backs are so raw from the roosters and they peck at each other on the raw spots. This county is SOOO bad at animal protection no help for the birds there (I've tried). So, I was freaking about heat on those -30 degree nights. I finally met up with a woman raising chickens a couple of weeks ago and the difference was AMAZING. Such beautiful birds! It's good to have confirmation on the heat issue for me.
So, the journey begins! I'm looking forward to 5 cold weather tolerant breeds (I think Buff Orpingtons and maybe two Australorps) in the spring. Although, I'm considering some pullets right now. I am just not sure buying the pullets from a hatchery would be the best move. I'm curious about how easy they would be to handle being raised at a hatchery.
Questions, questions, questions! I'm obviously the newbie!
Charlotte