Smokeless firepit

A firepit comprising:

• a first bottom comprising a plurality of air intakes configured to allow air therethrough;
• a second bottom elevated above the first bottom, the second bottom comprising a centrally located primary combustion air intake and secondary air intakes, the second bottom configured to divide the air into primary combustion air which passes through the primary combustion air intake and secondary combustion air which passes through the secondary air intakes;
• an outer wall extending upwardly from the first bottom;
• an inner wall extending upwardly from the second bottom, the inner wall and the second bottom defining a burn chamber for retaining and burning fuel therein, the inner wall being spaced inwardly of the outer wall which defines a secondary space between the outer and inner walls for the secondary combustion air to travel therethrough, and the inner wall comprising a plurality of secondary combustion air outlets located adjacent to a top end of the inner wall;
• and
• a top plate extending inwardly from the outer wall beyond the inner wall,
• wherein the secondary combustion air is configured to flow from the second bottom, through the secondary space, through the plurality of secondary combustion air outlets of the inner wall, and into the burn chamber underneath the top plate.

A method comprising:

• providing a firepit comprising a first bottom comprising a plurality of air intakes, a second bottom connected to and elevated above the first bottom, the second bottom comprising a centrally located primary combustion air intake and secondary air intakes, an outer wall extending upwardly from the first bottom, an inner wall extending upwardly from the second bottom, the inner wall and the second bottom defining a burn chamber for retaining and burning fuel therein, the inner wall being spaced inwardly of the outer wall which defines a secondary space between the outer and inner walls for the secondary combustion air to travel therethrough, and the inner wall comprising a plurality of secondary combustion air outlets located adjacent to a top end of the inner wall, and a top plate connecting the inner wall and the outer wall;
• initiating a primary combustion of the fuel in the burn chamber;
• intaking air, by the first bottom, through the plurality of air intakes in the first bottom;
• dividing the air, via the second bottom, into primary combustion air which passes through the primary combustion air intake and secondary combustion air which passes through the secondary air intakes;
• preheating, by heat emanating from the second bottom, the primary combustion air;
• guiding, by the second bottom, the primary combustion air into the burn chamber;
• guiding, by the second bottom, the secondary combustion air into the secondary space between the outer and inner walls;
• preheating, by heat emanating from the inner wall, the secondary combustion air which passes through the secondary space;
• guiding, by the outer and inner walls and the top plate, the secondary combustion air through the secondary space and toward the plurality of secondary combustion air outlets of the inner wall;
• guiding, by the plurality of secondary combustion air outlets of the inner wall, the secondary combustion air from the secondary space into the burn chamber underneath the top plate;
• and
• initiating a secondary combustion by introducing the secondary combustion air into the burn chamber and burning smoke and gases released by the primary combustion of the fuel to reduce smoke outputted by the firepit.