Buy a generator. If the power goes out, even tho you heat with wood, what about the refigerator and freezer? You on city water or a well? Water heated via wood?
It doesn't have to be a huge one, just enough to power the essentials, and have ethanol free gas for it. Shell V-Power 93 octane is ethanol free. After all the problems that I went thru with 90% of my gasoline powered "accessories", I'm not using ethanol fuel any more.