I have a breckwell big e I bought used. It runs great and i have vleaned the beajezus out of it but after 2 days on 1 or 2 the pellets start to back up. On 3 or 4 they back up to the point of clogging the chute. Ive looked inside and I do have the bafgle plates installed, could that be causing the back ip? Can I remove them? I have the stove coming right through the wall with one of the chkmney kits from lowes. Any ideas on how to make this stop happening?