I have a stand alone, insulated coop for my chickens and I use a heat lamp for the winter months plus a heated water bowl. It's just too darn cold for them otherwise. Also, we have a south facing window in the coop. The hens lay through the winter with this setup. As well as natural light and good feed (I use a mixture of home grown wheat and 17% laying hen ration), I think it's very important to have water available 24/7 to keep them laying.
We plan on building a new coop in a couple of years and I'm seriously thinking about going solar for that one.
Last edited by Chevaux; 10-04-2012 at 04:08 PM.