Tonight is the worst of the week though. -10F and that's before wind chill. My cars might not start tomorrow. Our furnace is well over 20 years old, so I've got a few backup plans should anything fail.
I almost worry about the chickens enough to consider putting them in the garage. It should be around 15F to 20F in there overnight. After tonight, though, temperatures should rise to 0F, so it shouldn't be too bad. Don't have anything to contain them, though, and that's where my electronics workshop is. Poop is not good for oscilloscopes. Actually I have a heat lamp we used when they were chicks, I'll just set that up outside. Their coop is already mostly sealed, and that extra 300W would probably be enough for them. Given that they're no longer laying, though, unless they start again in the spring this might be their last winter anyway. The Plymouth Rock chickens have definitely stopped laying, and they stopped prior to winter. The New Hampshire chickens are still laying, but only one every other day. They'll probably pick up the pace again, but the Plymouth Rock, I think, were bred more for meat production than laying. Finding a butcher that will handle them for us is probably going to cost more than buying chicken from the store, and three year old chickens aren't as good, by some measures, as the months old chickens you get from the store. Less hormones, antibiotics, and pesticides though. Anyone want some pet chickens that provide no value other than manure, and cost $3/month to feed?