As I said, opinions, everyone has them. I burned wood for 18 years and grew up in a wood burning house surrounded with wood burning houses. My brother has been running a wood boiler since 93 in his home. On the coast of Eastern Maine, oak, maple, beech, etc. are not available. They do not grow there. People burned what they could to survive the winters and they were colder back then. Furthermore, when I got older and better hardwoods were available, I ran into people from those growing regions of the state that said oak or whatever was no good? At any rate, the brother does not use the good stuff in the late spring, summer, and early fall as he does not need the btu's and junk wood is relatively free. Wood is a conundrum and all of you who think you are experts need a reality check. There are many kinds of wood and many kinds of conditions that exist between the stove and chimney, and the operator. Burn wood if you like, just pay attention to the exhaust pipe as conditions change rapidly. And I will never ever build a masonry chimney again.
Now that I am down south, these people smolder a fire all the time. Smells like the dump burning in the old days back home. Hickory, couple kinds of oak, whatever else grows here, the smoke stinks like hell. I guess they get away with it because the season is so short and they dont need much heat. As far as codes, I cannot believe the lack of them or adherence to them in this region. Sort of like the old days back home.