O.K., you'll all die when I tell you our electric bill is $650-$900 per month (depending on season) and our propane bill (for heat) is $300 per week. So, in freezing winter weather like we're having now, our total bill is $2,000 per month.
We bought a 100 year old home and of course, no insulation and raised 4 1/2 feet off the ground with 14 foot ceilings. It was 40 degrees in the front parlors this morning and that's with the electric central heater going, set at 82, running up a huge electric bill. We did buy a pellet stove fireplace insert last year and it is helping a lot but can only heat the den where it is installed but it cuts down tremendously on propane that would have had to be used to heat the same room. By next winter we plan on having wood heaters that can be cooked on and possibly another fireplace insert for elsewhere in the house. There are 9 fireplaces and they only serve to let heat out of the rooms.