I would just let them acclimate to the cold if I were you. Give them some cracked corn to warm up before night falls and make sure they are dry and draft free. If you start heating them and your power goes out they are in for a shock and possibly death if they aren't eased into the cold.
Right now I even have my silkies in the coop with the other chickens with no heat. We have the heated platform for their waterer and that's it besides shavings. Our temps have been in the negatives lately and the chickens are doing just fine. I just went out to give them some scratch treats and they were talking and scratching around like it was the middle of summer.
Right now I even have my silkies in the coop with the other chickens with no heat. We have the heated platform for their waterer and that's it besides shavings. Our temps have been in the negatives lately and the chickens are doing just fine. I just went out to give them some scratch treats and they were talking and scratching around like it was the middle of summer.