If you're dealing with actual cold, you do definitely need some secondary source of heat, ideally one where the fuel can sit around for long periods of time (pr

If you're dealing with actual cold, you do definitely need some secondary source of heat, ideally one where the fuel can sit around for long periods of time (propane, wood stove, etc). Running a generator just to dump the electricity into a resistive heater is a bit poverty-living ridiculous, and indicates addressing heat should be the primary concern rather than worrying about boring food. Whether portable propane heaters are considered "safe" to run indoors depends on what state/country you are in, so make of that what you will. Personally I'd rather not add the additional variable of carbon monoxide to what is already an emergency situation, but perhaps a few CO detectors would alleviate that concern.