38 combustion air is supplied to the annular air channel 68 through the air supply passage 56 that enters the annular air channel 68 through the outer wall 32b of the air housing 30 referring primarily to fig4 the auger 18 is driven by an auger drive 20 on one end of the auger shaft 66 that is remote from the fuel outlet zone 16 the auger drive 20 may be of the type conventionally used in the art such as an electric motor the remote ends of the auger 18 reside in the bottom of preferably airtight fuel bins 22a and 22b that contain fuel to be burned on the combustion plate 38 a portion of the casing 12 residing in the fuel bins 22a and 22b has been removed thus allowing the fuel supply to fill the helical flights 24a and 24b of the auger 18 and be transported to the fuel outlet zone 16 rotation of the auger drive 20 causes fuel to be transported to the interior fuel outlet zone 16 adjacent the ends of the auger 18 that are remote from the fuel bins 22a and 22b in fig3 the fuel passes through the conveyor casing 12.