After burning American Wood Fiber pellets, every other pellet EXCEPT Somersets are burning dirty. My glass and the inside of the stove is completely black within a few hours. I've cleaned out the ENTIRE stove and venting a couple of times already. The Somersets are $6.99 a bag. I've previously burned Hamer's and Power Pellets without any issues, but now they are burning dirty as well.
![[Hearth.com] After burning American Wood Fibers my stove is burning dirty [Hearth.com] After burning American Wood Fibers my stove is burning dirty](https://www.hearth.com/talk/data/attachments/152/152186-1034b6ffcfbf5b34e971a7135366a6f6.jpg?hash=IukfqLkgK5)
![[Hearth.com] After burning American Wood Fibers my stove is burning dirty [Hearth.com] After burning American Wood Fibers my stove is burning dirty](https://www.hearth.com/talk/data/attachments/152/152187-743d81309533b70df03ba6e56cc49c33.jpg?hash=JgEs_NsgY3)