Newly installed Harman XXV, dealer installed, direct vent, no OAK, burning Okanagan's on Room Temp Mode (70-75), Feed Rate 4, Blower set between H and L. Went through 7 bags in 4 days, house is approx 2400 sf. Outside temps have been cold on Long Island with high temps around 30 and lows in the teens. I cleaned out my stove after the forth day and the ash pan was 3/4 full, ash was all over the stove, glass is messy and needs cleaning every day. Any reason, other than pellets, that so much ash would be produced? Any suggestions on tweaking setting to reduce ash? Thanks in advance.