[]It's a very common heating device in my country, but note that butane/propane supply depends on oil consumption: the more petrol derivates (fuel oil, gasoline, tars, kerosene, parafine, sfsf) are consumed, the more butane/propane is produced. So, if oil is running low, so will do propane. Maybe it is not an issue for this winter, but it could be for the followings. Good thing is that even if you are cut from the electric grid, it will still work as long as there's gas left in the bottle.
One difference with propane=- the stuff doesn't have an expiration date. so if you can fill your tank(s) now, you are good to go for winter. It's a bit pricey here delivered though.