Interesting back and forth. My intention wasn't to start any "heated" discussion. For me, the long burn in the open position is more to heat my chimney flue than to get the stove up to heat. I have a long run, with a tricky 45 in it that tends to create creosote buildup. That is the reason that I do the long burn in the open position. I agree with those who say the stove can heat up quickly- yes, you can quickly get the stove to 600, but it is how it performs once shut down that tends to be my problem. If the flue is not good an warm, I see a significant drop in draw through the baffles, lower stovepipe temps and thus even more creosote buildup. My home solution, run in the open position longer, get more heat into the flue, then shut down.