I am tinkering a bit with my feed rate and have 2 questions. One, what is the factory setting for this stove? It alludes to it in the manual but nothing states where they actually set it. Bought stove 2nd hand so I didn't have it preset when I got it. Two, what are others using for their setting? Pics would be great as I am trying to get this fine tuned in advance of winter. Thanks.