I have a insulated coop that my husband built and we put in a red heat lamp. The lamp is screw to the roof struts, so there is no chance of it falling. Well when I went out this morning to let them out of the coop, the light was burned out. I am just wondering if they really need a heat lamp in an insulated coop. It was 11 degrees here this morning here in IA, and often gets down to about 0. The coop is insulated with that 2" thick pink board stuff.