My first ever 14 chickens will be 6 weeks this weekend. They sure do grow like weeds. All are in their box in may bathroom and I am ready to move them out. Coop is ready and I am sure they are ready. Just some q's. Do I need the heat lamp in the coop (low 50's at night still)? Will it be to hot to keep them in there during the day? How long can they be outside for at this point? Just looking for so tips and tricks.