What are the best settings to minimize overheating? We have an M55 cast, 2 years of great service, couple tons/year here in mild NC. It is well vented straight out the back thru exterior wall with I believe about 6' exhaust stack. Stove has always been sensitive to overheating (above 3) on the high settings, but not a problem because 4 or 5 would melt the paint on the walls and 3 easily heats the whole house (2 story 1800 sq ft old farm house). Pellets burn complete with little ash and good flame on all settings (premium pellet setting). Only issue has been glass buildup on low settings where it pretty much always runs, no big deal. Last month has started tripping heat censor, now tripping even down on 2. As I trouble shot I learned how superficial my cleaning has been (that back wall in the burn box actually comes out to clean! ), but now I believe I have the whole system pretty well cleaned out - from pellet to outside air both going in and out. But still tripping heat on setting 2 or more. When I pulled the convection fan (light-mod dust, noticeably better air flow after cleaning) I can see the shaft from the motor is not exactly straight with respect to the fan, and the fan is ever so slightly higher in its mount on the motor end - as if the weight of the motor has dropped the motor down, lifting the fan end up like a see-saw. No noise but failure is likely imminent. I have asked my dealer to try to acquire me one of the new turbo blowers per discussions I see here (warranty expired 4 days ago!!). While I am waiting on a new blower and/or if it is loud (stove is right in the middle of our living area) and I try to get by for awhile with my existing fan, I am wondering about the best setting strategy for minimal unit overheat. So back to the question! Am I thinking right that putting the combustion setting on max, and the pellet flow rate in minimum would be the best way to move heat out of the unit and preclude tripping at any given heat setting? Any comments or insights are greatly appreciated.