I’ve used kerosene for years until the price went too high. I was looking into wood stoves and stumbled upon a video showing a “rocket stove” with a “mass heater”. If one can look past the hippie element, these seem like a pretty good idea. Plenty of video online under the search terms.
I will have to look up rocket stoves. I really enjoy the back to the land technology. Love Backwoods Home magazine and Countyside Journal