I raise my chicks indoors and normally move them out to the brooder ring in the shed (draught free) at 4 weeks old. This gives the chicks much more space than I can give them indoors. But I've hatched chicks earlier than usual this year and I'm due to move them to the shed on 1st March. The temperatures here in March are NOT likely to go below freezing and are around 50F during the day. I use a Comfort 16" heat plate but I can't find the manufactures ambient temperature recommendations anywhere. (It is definitely hotter than Brinsea EcoGlow which I also have and can be used down to 50F according to the manufacturer.) Will the chicks be ok with the Comfort plate in the shed from 4 to 8 weeks of age? Is it worth putting a thermostatically controlled convector heater in the shed set to the anti-frost setting?