A gas collapsible stove includes an expandable combustion chamber formed from nested annular rings that can collapse to about the height of a single ring and expand into a combustion chamber for burning combustible materials. Ventilation holes at the bottom of the combustion chamber provide airflow into the combustion chamber. The combustion chamber is frustoconical and narrows at the top which increases air flow into the combustion chamber via the Venturi effect. Combustible fuels can be added and ignited in the combustion chamber and cookware containing food can be placed onto an associated top plate suspending the combustion chamber. A gas head with a plurality of gas apertures can be inserted through a bottom plate secured to the bottommost annular ring to allow a combustible gas to be used as a combustible fuel in the combustion chamber.

A gas burner assembly for a cooktop appliance is provided including a lower body and an upper body positioned over the lower body to define a boost burner chamber. A first plurality of projections extends upward from the lower body and a second plurality of projections extends downward from the upper body. The second plurality of projections are interposed between the first plurality of projections to define a plurality of burner ports in fluid communication with the boost burner chamber. In this manner, burner ports are easily manufactured and define a larger height-to-width aspect ratio for improved burner performance.

A cooking grill having a cooking grate, a plurality of gas burners arranged below the cooking grate, and at least one baffle between adjacent ones of the plurality of gas burners having an apex proximate the cooking grate and having a pair of opposite spaced apart walls extending downwardly at least to a level of the plurality of gas burners.

The present invention relates to a burner head of a burner for a gas cooktop, a burner, and a gas cooktop. The burner head includes a plurality of supports, where each support includes a support surface for supporting a cooking utensil, the support is further provided with a plurality of gas ports from which gas flows out and forms a flame, and each support has a first working position and a second working position. When the supports are in the first working position, the burner head has a flat upper surface and the support surfaces of the supports constitute the upper surface; and when the supports are in the second working position, the burner head has a concave surface, and the support surfaces of the supports constitute the concave surface. In the present invention, the shape of the burner head is changeable, so as to adapt to cooking utensils having different bottom outlines.

A gas-heated cooking appliance, e.g. a gas cooktop, includes at least one gas valve, which has a connector, and a gas line, which is connected to the connector to supply the gas valve with gas. A carrier part is fastened to a housing part and fixes the gas line relative to the connector.

A gas cooking device is provided with: at least one burner; a gas supply conduit; at least one valve arranged between the gas supply conduit and the burner and configured to regulate the gas flow rate supplied to the burner; a fixing device configured to fix the valve to a first portion of the gas supply conduit; and a safety device configured to fix the valve to a second portion of the gas supply conduit.

A gas cooktop includes a gas burner and a grate for supporting cookware above the gas burner. The grate includes a removable insert having an upper surface and a lower surface and a plurality of tines for supporting the removable insert. When the lower surface of the removable insert is contacting the plurality of tines, the grate supports flat-bottomed cookware on the removable insert at a first height above the gas burner. When the upper surface of the removable insert is contacting the plurality of tines, the grate supports flat-bottomed cookware on the removable insert at a second height above the gas burner, the second height being greater than the first height. When the removable insert is not contacting with the plurality of tines, the grate supports round-bottomed cookware on the plurality of tines.

A cooktop appliance includes a top panel. A gas burner assembly includes an annular burner body positioned on the top panel at a top surface of the top panel. The annular burner body defines a central combustion zone. The annular burner body also defines a plurality of flame ports at the central combustion zone. Gaseous fuel is flowable from a fuel chamber within the annular burner body into the central combustion zone through the plurality of flame ports. The gas burner assembly further includes features for direction the gaseous fuel into the fuel chamber of the annular burner body. The annular burner body is open at the central combustion zone such that the top panel is exposed through the annular burner body at the central combustion zone.

An air baffle unit includes a major housing wall extending in first and second directions to define an exterior side and an interior side, two upper corner output vent openings, first and second laterally opposed side vent openings, and an air intake opening arrangement defined within an intake area along the major housing wall and extending therealong in the first and second directions. The air intake opening arrangement is defined in an intake area and includes first and second pluralities of intake vents positioned within respective first and second open areas of the intake area with first and second closed areas extending between the first and second open areas. The first and second open areas and first and second closed areas each positioned within respective quarters of the intake area. The open areas are displaced relative to each other in both the first direction and the second direction.

According to one example, a convection oven comprises a cooking chamber having a front door and a rear door opposing the front door; a combustion chamber disposed below at least a portion of the cooking chamber; a side flue conduit configured to direct hot air from the combustion chamber to the cooking chamber; and a side sub-chamber with a convection fan configured to re-circulate at least a portion of the hot air within the cooking chamber, in which the side sub-chamber is disposed adjacent a side of the cooking chamber that is orthogonal to the front and rear door.