Pellet grills and associated methods of operation are disclosed. An example pellet grill includes a main body defining a cooking chamber. The main body includes a first end, a second end located opposite the first end, and an outer wall extending between the first and second ends. The main body has a lateral extent defined by the first and second ends. The example pellet grill further includes a hopper mounted to a rear portion of the outer wall of the main body. The hopper includes a fuel intake opening extending from a first location within the lateral extent of the main body to a second location outside of the lateral extent of the main body.

Pellet grills and associated methods of operation are disclosed. An example pellet grill includes a main body defining a cooking chamber. The main body includes a first opening extending through a bottom portion of an outer wall of the main body. The main body further including a grease channel formed along the bottom portion of the outer wall and extending to the first opening. The example pellet grill further includes a burn pot located within the main body. The burn pot includes a lower end having a second opening aligned with the first opening. The second opening is configured to enable pellet fuel ash to pass downwardly from the burn pot onto an ash slide positioned below the second opening. The example pellet grill further includes a waste collection drawer located below the main body. The waste collection drawer is movable relative to the main body between a closed position and an open position. The waste collection drawer includes a grease bin positioned below the first opening and configured to receive grease from the grease channel when the waste collection drawer is in the closed position. The waste collection drawer further includes an ash compartment positioned below the ash slide and configured to receive pellet fuel ash from the burn pot, via the ash slide, when the waste collection drawer is in the closed position.

Pellet grills and associated methods of operation are disclosed. An example pellet grill includes a main body defining a cooking chamber. The main body includes a first opening extending through a bottom portion of an outer wall of the main body. The main body further including a grease channel formed along the bottom portion of the outer wall and extending to the first opening. The example pellet grill further includes a burn pot located within the main body. The burn pot includes a lower end having a second opening aligned with the first opening. The second opening is configured to enable pellet fuel ash to pass downwardly from the burn pot onto an ash slide positioned below the second opening. The example pellet grill further includes a waste collection drawer located below the main body. The waste collection drawer is movable relative to the main body between a closed position and an open position. The waste collection drawer includes a grease bin positioned below the first opening and configured to receive grease from the grease channel when the waste collection drawer is in the closed position. The waste collection drawer further includes an ash compartment positioned below the ash slide and configured to receive pellet fuel ash from the burn pot, via the ash slide, when the waste collection drawer is in the closed position.

Embodiments include a wood pellet burner unit with a sliding floor hopper. The wood pellet burner unit includes a wood pellet fire pit, a wood pellet kettle burner, a wood pellet barbeque burner, and/or a wood pellet smoker, or the like. The sliding floor hopper includes an upper loading section having an opening therein that receives wood pellets, and a staging section coupled to the upper loading section and stages the wood pellets received from the upper loading section. A sliding floor is disposed atop a staging surface of the staging section and through a slit in the staging section. The sliding floor oscillates between a forward position and a back position. The sliding floor oscillates between a forward position and a back position to automatically and periodically feed the wood pellets to a lower region of the wood pellet burner unit on a continuous basis.

Embodiments include a wood pellet burner unit with a sliding floor hopper. The wood pellet burner unit includes a wood pellet fire pit, a wood pellet kettle burner, a wood pellet barbeque burner, and/or a wood pellet smoker, or the like. The sliding floor hopper includes an upper loading section having an opening therein that receives wood pellets, and a staging section coupled to the upper loading section and stages the wood pellets received from the upper loading section. A sliding floor is disposed atop a staging surface of the staging section and through a slit in the staging section. The sliding floor oscillates between a forward position and a back position. The sliding floor oscillates between a forward position and a back position to automatically and periodically feed the wood pellets to a lower region of the wood pellet burner unit on a continuous basis.

A furnace using biomass pellets as fuel, comprising a housing arranged on a base, wherein the housing is internally provided with a burning chamber, the bottom of which is provided with a burning grate, and the burning chamber is connected with a primary oxygen supply device; the primary oxygen supply device comprises an oxygen supply cylinder that communicates with the outside, and the bottom end of the oxygen supply cylinder is connected with an oxygen supply pipe II configured to blow air over the burning grate, and a plurality of air outlet holes I is defined in the oxygen supply cylinder.

A method for operating a combustion arrangement, the combustion arrangement including at least one combustor chamber arranged in a double-walled housing, at least one inlet configured to supply a fuel to the at least one combustion chamber, at least one outlet for letting exhaust air from the at least one combustion chamber, and at least one air channel configured to feed supply air into the housing, wherein the housing includes an inner wall and an outer wall which jointly define an intermediate space between each other, wherein an air inlet opening that cooperates with the at least one air channel is arranged in an upper end section of the outer wall so that the supply air is feedable through the at least one air channel into the intermediate space.

A combustion assembly housing contains primary and secondary combustion chambers and an ash receptacle. The primary combustion chamber has primary and exhaust grates. Fuel pellets fall in downward onto the primary grate; intake air flows in upward through the primary grate; exhaust gas flows out rearward through the exhaust grate. The primary grate supports unburned fuel pellets and permits partially burned pellets to fall through. Multiple vertical passages through the primary grate are each deeper than they are wide. The secondary combustion chamber has a secondary grate. Partially burned pellets fall in downward onto the secondary grate; intake air flows in rearward, through the secondary grate, and out upward into the primary combustion chamber. The secondary grate supports partially burned pellets and permits ash to fall through downward into the ash receptacle. Intake air flows rearward into the ash receptacle and upward into the secondary combustion chamber.

A biomass pellet combustion system includes a primary burn chamber, a coal burn chamber, and a gas burn chamber. The primary burn chamber is configured to receive pellets from a drop tube of the biomass pellet combustion system. The coal burn chamber is configured to receive coals from the primary burn chamber. The gas burn chamber is configured to receive combustible gases from both the primary burn chamber and the coal burn chamber, wherein a secondary combustion process converts secondary combustion air and the combustible gases into exhaust gases in the gas burn chamber.

A biomass pellet combustion system includes a primary burn chamber, a coal burn chamber, and a gas burn chamber. The primary burn chamber is configured to receive pellets from a drop tube of the biomass pellet combustion system. The coal burn chamber is configured to receive coals from the primary burn chamber. The gas burn chamber is configured to receive combustible gases from both the primary burn chamber and the coal burn chamber, wherein a secondary combustion process converts secondary combustion air and the combustible gases into exhaust gases in the gas burn chamber.