Kerosene heaters: Do they make any sense? They come in two flavours, there are large ones with pipes that jut out of the wall, and small, portable ones, like the one modeled by Felis the evil cat, above.
Mine has a 5 litre tank (approx 1.25 US gallons), which lasts almost exactly 24 hours when set to "max" (2000 W, the producer claims). I imagine most would find an electric heater cheaper, provided they had access to mains electricity.
Hermit's verdict: This is one more of those contraptions that promise the kind of switch-flick convenience most of us are used to in The Towns. But if you don't have road access, packing kerosene has to be weighed against the local availability of wood. My heater gives out the heat equivalent of two Aladdin lamps, but emits very little light, so in winter I find I might as well use the lamps instead.
A nice thing about the heater, though, is that it is quite child- and pet safe.