Hi I have 2 Santa Fe's and burn Cleanfire Pacifics. Question for the forum is what is the most efficient setting for feed rate? This year the pellets are pretty large so I set my feed rate on stove #1 in the basement wide open. It is burning great but do have some black ash residue. Flame is usually 4" above pot or lower. Upstairs, #2, I did not change the rate (its at approx. 75% open) and the flame is rarely above the firepot, but seems to achieve temp just fine and as quickly as #1. It is burning cleaner, less black ash. However, there were times it seemed to struggle with keeping the fire rolling, guess it was hitting some of the super big pellets. What would you recommend for the best efficiency? Thanks for the feedback!