Is going to be -15° tonight and I was wondering if I should put a heat lamp my chicken coop. I have used heat lamp in the previous years. I have tried to refrain from it this year,however I am wondering if there's a certain point in time when I should. It's been very cold lately, as in single digits or even last night it was -7. My chickens don't seem to mind the cold.I think, as long they are not shivering or showing signs of being way too cold, do you think it would be fine if I do not use the heat lamp? I do not want the fire hazard or for the electricity to go out and have the sudden temperature drop.