Also, as usual, my concerns are trivial compared to what other Head-Casers are facing. I hope you escape your predicament unscathed, Nate. I had to help a friend who had pipes burst in his house, and it was an unmitigated disaster. It sounds like you've been keeping a close eye on things and taking the necessary steps to protect your house from freezing.
My father, who was an eccentric and paranoid man, put an 800lb Nashua stove in my the basement of this house when he bought it. The sole purpose of the stove is to keep the pipes from freezing during a prolonged power outage. I have never fired it myself. It's big enough to burn bodies.