Maybe the experts on the wood BTU charts I see, need to come to SW PA, and grab a load of my Red Elm. those experts, tell me my Black Locust, Honey Locust, even White and Red Oak, burn as hot as Red Elm. Well, I'm here to tell you, I'm calling B.S. When my stack for the year starts to dwindle, I hook up the trailer, and get a load of completey dead, standing Red Elm. I have many of them that succomb to Dutch Elm disease every year. I save them (let them stand) knowing they are my "go to" that I can cut, and buck into rounds, and not have to worry about splitting, when I need to burn. This Elm goes "klink" when you knock two pieces together, not that familiar "thud" sound of undried wood. And let me tell you, I have not found A THING that burns as hot. It actually get s me worried as the stove and pipe get scorching hot. No Locust or Oak, or anything else for that matter, has the same effect. In my mind, the experts need to perform some "hands-on" testing, and adjust their BTU charts.