I moved my 6 week old fully feathered Buff Orpingtions, Rhode Island Reds and Barred Rocks from the laundry room to the garage last week and today from the garage to an outdoor 8 X 8 coop. I was hoping to gradually get them used to it being a bit cooler. The coop will be their final home so they will not be moved anymore, I just couldn't keep them in the 3' x 5' water trough/brooder they had been in, it was really getting cramped for them. We built the coop this week-end and it is not insulated yet but it does have a pine shavings floor and a red bulb heat lamp. I have 12 chickens so they can huddle up together if they get cold. Right? It will get into the low to mid 30's this week at night but will start to get significantly warmer by the week-end. With the heat lamp I think it is about 50 inside the coop and warmer directly under the lamp. How cold is too cold for them at 6 weeks old and how much additional light should they be getting. Are the two 2' x 3' windows that I have in the coop and the heat lamp enough or should I also add a regular 60 watt light lamp too?