Hello, I have raised chickens for years but not since I moved to this cold climate. (Michigan) I have 22 chicks in my basement. I have expanded their home to big boxes but they need to get out of there the sooner the better. I have a very tight (safe) chicken house ready for them but it is still getting down to freezing at night. If I put my two heat lamps out there will that be enough to keep them warm enough? It will not be drafty. They would be about four or five weeks old. I have never had to deal with cold weather like this before.