We just bought our Harman P68 earlier this year so we are very new to pellets and how to determine what is best. We started with 2 tons of NEWP each batch burned differently but ok. We picked up 2 more tons of NEWP locally. The guy told us they came from the NH plant which he preferred and thought were better. The stove actually feels like it is blowing hotter heat but they are making the stove black inside. Before we could clean the glass and it would get covered with a brownish tint, you could still see inside the glass. This time, we clean the glass and its black the next day! The worst part is, the smell!! It's terrible!! Before it smelled like wood. Outside smelled like a wood stove and inside as well. This time it smells chemically. Just awful!! I feel like we are inhaling god knows what! Is or has anyone had this problem? Any recommendations?