“ Burns Dirty , heavy ash and ash clumps clog the fire box.
Over the past 5 years I have used these when running low on pellets. In 2018 I bought 6 bags due to the extreme cold January. I have used four and Will Not use the two remaining.
Kozi Previa . The green NOT SO supreme leave heavy ash which clog the fire box and cause ignition failures due to ash blocking pellet contact with the igniter. ”