I don't heat their coop at all, it's ventilated and at least 5-6 inches of shavings on the floor, if they get cold they just light up a cigarette and pass it around.
Have you tried to talk to them about that habit? Its really bad for them, you'll get eggs with green yolks as well.
BYC member #4418
http://cherylmercer.blogspot.com/
BYC member #4418
http://cherylmercer.blogspot.com/




















I have a lot of old carpet I can have 2+ sets. While one is being cleaned and dried the other will be used. I have an auto watering system so it does not get wet. The bays are 4x4 so the carpet would not be cumbersome to do this. (Please, I know carpet can have Formalyhyde and other things) It's eco friendly wool carpet.

