Mine are in the house and the house is always warm during the day. They are 2 weeks. At night I lay down a couple of hot water bottles that have teddy bear covers. Even during the day they snuggle in to them. They have not had the heat lamp on for one week. They are happy and healthy.they are feathering up well. It's approaching summer. I will be putting them out and keeping them in the shed at 6 weeks and letting them out