Coincidentally is the first day i start burning wood. I also got a new stove. I have one a small stove with catalyst. But, i would destroy the catalyst if i burned anything with color ink, glue, and certain chemicals. That wrote off a lot of stuff i could burn lest i want to destroy the stove. Got a new simpler one that doesn't have a catalyst, much easier to operate too. Heats the place just fine too.
Got one of these used free, it's only a year old.

This place isn't very big, so it does just fine. Need to stoke it once every 3.5 hours. I prefer 4, but the small size sort of dictates this. It's close enough. More than good enough to offload fuel oil usage with wood in order to start a significant reserve of fuel oil.
In nukes case for that one guy's place, yeah switching to wood is only good if it's free. Free and easily maintainable is usually what wants to be fulfilled next. How much did it cost in fuel oil for it after it became claustrophobic? As far as fuel oil goes, when there's none to be purchased, we just buy diesel around here. The toyostove burns it all the same, although fuel oil is much preferred instead.