It's not an issue with a good plan. I don't think a single source of heat is a good idea with gas or electric. I don't need either to heat my house, and the power could go out for months and I wouldn't care. I also need electricity for water because of the well pump. I cover that with a generator and backup supply. I'm certainly not an advocate of electric baseboard, but there are ways to work through it. The only thing I cared about when I purchased my house is that it had wood stoves; I wouldn't buy a house that didn't have either fireplace(s) or stove(s).