High-capacity sparkless mobile double-insulated wood pellet burner unit

A high-capacity sparkless mobile double-insulated wood pellet burner unit, comprising:

• an outer housing including a plurality of air intake vents, and a circular rim assembly, wherein the rim assembly provides a safety barrier to flames exiting a top region of the outer housing;
• an inner combustion vessel disposed within the outer housing;
• an annular convex flame guide disposed on the rim assembly, and configured to cause mixed wood pellet gases and heated combustible air from the plurality of air intake vents to form the flames having a base at or near a plurality of upper vessel orifices in the inner combustion vessel;
• a wind break radiant heater reflector disposed on the rim assembly;
• and
• an air gap disposed between the outer housing and the inner combustion vessel, wherein:
• the inner combustion vessel includes a plurality of lower vessel apertures;
• the plurality of intake vents are configured to receive outside air;
• the air gap is configured to divide the outside air into a first branch having downward flowing heated combustible air in the air gap, and a second branch having upward flowing heated combustible air in the air gap;
• the plurality of lower vessel apertures are configured to receive the heated combustible air from the first branch;
• the plurality of upper vessel orifices are configured to receive the heated combustible air from the second branch;
• the inner combustion vessel includes a grate support flange in a lower section thereof, and the grate support flange is configured to support a grate;
• the grate includes a plurality of orifices through the grate thereof that are configured to receive the heated combustible air from the plurality of lower vessel apertures;
• the grate includes a handle to facilitate insertion and removal of the grate into and out from the inner combustion vessel;
• the inner combustion vessel is configured to hold wood pellets on the grate;
• the plurality of orifices through the grate are of such size as to allow the heated combustible air to flow through the grate in an upward direction through the wood pellets to form a gasification of the wood pellets into wood pellet gases;
• and
• the inner combustion vessel is configured to mix the wood pellet gases with the heated combustible air received through the plurality of upper vessel orifices;
• and
• further comprising:
• the grate;
• three or more casters attached beneath the outer housing;
• a horizontally oriented continuous planar disk inner insulation layer having a particular diameter disposed beneath the inner combustion vessel within the outer housing, wherein the inner insulation layer extends at least from a first outer edge of the inner combustion vessel to a second outer edge of the inner combustion vessel, and wherein the first outer edge is situated opposite to the second outer edge;
• and
• a continuous planar disk outer insulation layer having no apertures therein, wherein the outer insulation layer is disposed beneath the entire inner combustion vessel and beneath the entire inner insulation layer, wherein the outer insulation layer is spaced apart from the inner insulation layer, and wherein the outer housing is disposed on the outer insulation layer, wherein:
• the annular convex flame guide is configured to cause the mixed wood pellet gases and the heated combustible air to form sparkless flames having the base at or near the upper vessel orifices, wherein the annular convex flame guide includes a continuous surface that surrounds a singular central aperture;
• the circular rim assembly is along a circumference of the outer housing, wherein the rim assembly extends outward and provides a continuous vertical safety barrier between small children and flames exiting an upper region of the wood pellet burner unit;
• the inner combustion vessel includes an annular upper resting flange configured to rest atop the rim assembly of the outer housing, wherein the annular upper resting flange only extends outward at a 90 degree angle relative to a vertical wall of the inner combustion vessel;
• the plurality of upper orifices include a plurality of circular orifices disposed around a circumference of an upper region of the inner combustion vessel;
• and
• each of the lower vessel apertures has a larger area of opening than each of the upper vessel orifices.