Thanks to all that have helped me over the past few months. Transitioning from a pre-EPA stove has been "a bit challenging". I thought I was in pretty good shape after adding a damper to my stove pipe in order to control my stove temps, when the thermostat was not enough, but I think I'm still not out of the woods. My problem seems to be after a few hours of burning 3 small to medium splits, as the wood turns into coals, the temps start climbing. I close the thermostat all the way, and the damper in the stove pipe all the way (it has holes in it) but the stove temps remain at 600. I realize this is not overfired, but I think with more wood, it will be. I even block off secondary 100% and the secondary burn is visible, and stove temps don't drop below 600 after 40 minutes. I have yet to really load up the stove for fear that I won't be able to control it. Could this be normal? I replaced the gridle, door and ash pan gaskets, and removed the catalyst, but I suspect I may have a leak in the panels that make up the stove. It's only 3 months old. Using a lighter it looks like I may have leaks, but I can be sure. Hopefully I'll get this sorted out before my wife throws me out with the stove, as I'm spending all my time with it. I may go back to my old Defiant 3 if I can't sort this out.