I have been playing with my new stove (49-sh22) and have been having a lot of problems with the unit not getting enough air, it seems the the outside air kit supplied with these stoves is inadequate for my elevation (4000 ft). I opened the screen on the exterior end of the intake and now the stove is burning absolutely perfect. Hopefully this has solved the problem with the burn pot loading up with pellets. This is the first time that I have burned the unit and not had black glass! I’m stoked, pardon the pun.