This is an interesting thread. It is very rare to lose power where I live (underground wires) but I have friends who are not so fortunate. I'm also thinking that a candle heater could be a lot more economical than a space heater! When it is this cold, I normally have a space heater going in my office/sewing room. It makes it a lot more comfortable but I know it sucks up the kilowatts like crazy. Does anyone know what size room will work effectively with this?