One concern I have with Central Boiler is the rumored stack temperature on the E-Classic being between 450 and 600 or possibly higher. Have any of the CB owners measured the temp? I called the factory and the sales rep claimed he did not know. My initial thoughts were that he refused to tell me. He did a pretty good job of playing dumb, but I smell shenanigans. One other thing I'm not a big fan of, is the low gassification chamber temps. (800 to 1200f)