Wood Pellet Boiler and Furnace Product Image Library PES56 Cutaway AutoPellet Air Furnace Bottom Fed Burner PEB20 Cutaway PES56 PEB20 FleXILO Classic FleXILO KGT (full) FleXILO KGT (empty) PE20 Staged System PE20 Cutway Auger Fed Vacuum Fed