My chicks are only 2 1/2 weeks right now, when they are fully feathered I will move to coop and at that time it will be pretty cold here in NH. Questions 1. Do I keep the door to the run closed off for certain a period of time? 2. Is it a good idea to move their entire brooder into the coop for a transition period? 3. Should I do daytime stints preparing or just put them out all at once? 4. I will be using wood pellets (using in brooder as well) how many inches deep do I need in the coop? I have them in a spare room right now with an ecoglow brooder- heat is shut off to the room, window is cracked, and someone told me to stop using the heat source during the day after 5 weeks to get them used to temp change.