[downeaster]

If you risk losing your ability to heat your house, I would advise obtaining a generator large enough to power your heating unit. It seems most ice storms in the north are followed by freezing weather. With no heat you could experience serious damage due to water pipes freezing.
I would consult with a reputable electrician concerning the size and type of generator.
Here in The Villages, most people are concerned about their freezers defrosting.
Personally, I have a small inverter that attaches to my car battery. It will power the refrigerator and freezer. It is way cheaper than a generator, I don't have to store gasoline and it takes up less room than a brief case. I have had it for four years and other than testing it I have not had to use it.