Thanks for the reply! We ended up having one more powercut for a few hours at day 15, but had 30 hatch out of the 56 eggs we began with, and they're doing well now!
We set eggs on the 18th, but on the 20th had a 25-hour powercut. When the power went off we covered the incubator with half a dozen blankets, but when it became evident that it was going to be more than a few minutes went online to find out what to do and, based on advice from here and the...