A pyramid fire pit. The fire pit includes a first trapezoidal side plate having a first hook and a first slot defined in opposing upper corners, a second trapezoidal side plate having a second hook and a second slot defined in opposing upper corners, and a third trapezoidal side plate having a third hook and a third slot defined in opposing upper corners. The first hook locks into the second slot, the second hook locks into the third slot, and the third hook locks into the first slot so that the three side plates define between themselves an inverted triangular pyramid-shaped cavity in which a fire can be built.

A pyramid fire pit. The fire pit includes a first trapezoidal side plate having a first hook and a first slot defined in opposing upper corners, a second trapezoidal side plate having a second hook and a second slot defined in opposing upper corners, and a third trapezoidal side plate having a third hook and a third slot defined in opposing upper corners. The first hook locks into the second slot, the second hook locks into the third slot, and the third hook locks into the first slot so that the three side plates define between themselves an inverted triangular pyramid-shaped cavity in which a fire can be built.

Exemplary embodiments of a system and method for bimodal air control in a kettle-style grill are configured to be detachably mounted to the exterior of a kettle-styled grill such as, but not limited to, a Weber charcoal grill. When mounted to the kettle-styled grill, a plenum-like component directs air flows to the interior of the grill's kettle via the kettle's lower body damper holes. A manually adjustable intake damper in the plenum component allows, restricts, or prevents a drawn ambient air flow into the plenum component. Separately, a forced air flow generated by a fan may also be provided into the plenum component. Adjustment of the intake damper may also adjust damper blades inside the grill's kettle. Ash that falls out of the kettle's damper holes falls through the plenum component and is captured in an ash receptacle that is removably mounted to the plenum component.

Exemplary embodiments of a system and method for bimodal air control in a kettle-style grill are configured to be detachably mounted to the exterior of a kettle-styled grill such as, but not limited to, a Weber charcoal grill. When mounted to the kettle-styled grill, a plenum-like component directs air flows to the interior of the grill's kettle via the kettle's lower body damper holes. A manually adjustable intake damper in the plenum component allows, restricts, or prevents a drawn ambient air flow into the plenum component. Separately, a forced air flow generated by a fan may also be provided into the plenum component. Adjustment of the intake damper may also adjust damper blades inside the grill's kettle. Ash that falls out of the kettle's damper holes falls through the plenum component and is captured in an ash receptacle that is removably mounted to the plenum component.

The present disclosure provides a combustion furnace with controllable firepower, including a furnace body, wherein the furnace body is provided with a combustion chamber in which combustible materials are placed, wherein the furnace body further includes an adjusting mechanism and an air inlet, the air inlet is provided on the side wall of the furnace body and is configured to be communicated with the combustion chamber, the adjusting mechanism includes a baffle, the baffle is provided at the air inlet and closely clings to the side wall of the furnace body to turn off the air inlet, and the baffle is configured to move up and down with respect to the furnace body to control the air inlet to be turned on and off.

The present disclosure provides a combustion furnace with controllable firepower, including a furnace body, wherein the furnace body is provided with a combustion chamber in which combustible materials are placed, wherein the furnace body further includes an adjusting mechanism and an air inlet, the air inlet is provided on the side wall of the furnace body and is configured to be communicated with the combustion chamber, the adjusting mechanism includes a baffle, the baffle is provided at the air inlet and closely clings to the side wall of the furnace body to turn off the air inlet, and the baffle is configured to move up and down with respect to the furnace body to control the air inlet to be turned on and off.

A termination cap for a direct vent appliance. The termination cap comprises an outer housing, an exhaust housing nested within the outer housing and a trim plate. The trim plate has an exhaust gas opening and combustion air openings and is securable to the exhaust body to allow exhaust gas to flow through the exhaust gas opening. At least a portion of the combustion air drawn through the combustion air openings is heated and exits through the top or upper portion of the trim plate to form an air wash along the wall surface within which the cap is mounted.

An enriched air stove having a combustion surface for supporting solid fuel for combustion and an oxygen enriched air intake fluidly connected to the combustion surface to provide an oxygen enriched air source. The combustion surface can be a baseplate comprising a plurality of apertures fluidly connected to an air mixing chamber to mix atmospheric air and enriched oxygen to assist combustion of the solid fuel.

An enriched air stove having a combustion surface for supporting solid fuel for combustion and an oxygen enriched air intake fluidly connected to the combustion surface to provide an oxygen enriched air source. The combustion surface can be a baseplate comprising a plurality of apertures fluidly connected to an air mixing chamber to mix atmospheric air and enriched oxygen to assist combustion of the solid fuel.

A stove includes a stage, a stove, a housing, and an exhaust pipe is disclosed. Wherein, the stove is disposed on the stage and includes a chamber made of metal and a thermal insulation structure. The chamber includes a cavity, an entry, and an air outlet. The thermal insulation structure covers an exterior of the chamber. The housing is disposed outside of the stove and joined to the stage. An isolation space is formed between the housing and the stove. The exhaust pipe passes through the housing and communicates with the air outlet and the exterior of the housing. The heat source is adapted to heat the cavity. Whereby, a compact size kiln is realized.