Did you ever think about moving to Texas?
Only thing wrong with moving here to Texas is that the air conditioning bills are a little high in the summer. Probably not high enough to make up the difference in what she is paying for propane, though. I have done the same thing she did, and quit using propane and started just heating the rooms we stay in the most with electric space heaters,and even here in Texas it it much cheaper. Folks who are lucky enough to be on a natural gas hookup can use gas without too much expense over electricity, but the propane would run me about $300 or more during the winter here!