Old draft house, eh? The way to go is radiant infloor heating. (It can be costly, but if you do it yourself it's cheaper-- and it saves on heating bills) My parent's house is about 175 years old this spring. Thing leaks heat like a pasta strainer. Wind blows right through it, even though they've added insulation just about in every wall. But this year, they got my oldest Bother to lay radiant infloor tubing. And it's actually WARM. It was the strangest thing going in that house and finding it warm. They still have issues with drafty windows, but it's a huge improvement.
My Oldest Bother did his house two years ago with radiant infloor and his bill is sickening low. Plus, when there's a gathering at his house, he has to turn the heat off or it gets too hot. I think you can get electric boilers for radiant in floor.
In the meantime... if you haven't already, make sure you put plastic over the windows. Unless they're super-high-energy efficiency and not leaking air at all, put up plastic wrap and you will be MUCH warmer. My new-ish condo has new windows, but they're cheap with low R-value. I put up plastic and it makes it much warmer. I like warmer. (Of course, it's still expensive and cold because of the vaulted ceilings, extra-long hallways, and other poor designs.)