I live in the North where -40 is common. I would say the vast majority of people have a wood stove, and they work exceedingly well. You might not be aware but

I live in the North where -40 is common. I would say the vast majority of people have a wood stove, and they work exceedingly well. You might not be aware but ones that burn the wood twice (even three times) are now common and in fact are law in many places. So they're MUCH more efficient, and drastically reduce the particulates coming out the stove pipe. Another benefit is they only need to be fed once every 24-48 hours (depending on what heat you set the thermostat, what size stove you have, how well insulated your house is and what temperature it is outside.) Wood stoves are a necessity.