A burner head of a burner for a gas cooktop, a burner, and a gas cooktop are provided. 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. The shape of the burner head is changeable, so as to adapt to cooking utensils having different bottom outlines.

The invention relates to a gas hearth, at least comprising a combustion chamber, gas supply means for supplying combustible gas into the combustion chamber to firebed-simulating means positioned in the combustion chamber, ignition means for igniting the combustible gas in the combustion chamber and a flue-gas discharge duct connected to the combustion chamber for discharging combustion flue gases from the combustion chamber, as well as metering means which are arranged in the combustion chamber for metering a pyrotechnical additive into the flames of the burning combustible gas during operation, wherein the metering means comprise a reservoir for the pyrotechnical additive which reservoir is provided with at least one metering opening.

An apparatus includes a high-pressure tank, a controller, a valve, controlled by the controller, and a heater.

Disclosed herein is a gas pressure regulating apparatus. The gas pressure regulating apparatus includes: a main body including an outlet; a pressure regulating part positioned inside the main body and including a diaphragm configured to maintain a gas flowing through the outlet at constant pressure; and an inlet connecting part with which an external gas supply pipe is coupled, the inlet connecting part protruding from the main body and including an inlet communicating with the inside of the main body, wherein the inlet connecting part includes a reinforced portion formed in one end of the inlet connecting part along a circumference of the inlet and depressed in a direction which the external gas supply pipe is coupled with the inlet connecting part.

A cooktop appliance includes a gas burner disposed on a panel of the cooktop appliance and a grate with a plurality of fingers positioned above the gas burner. The plurality of fingers includes a sensor finger. A temperature sensor is mounted to the sensor finger of the plurality of fingers of the grate. The temperature sensor includes a first temperature probe extending above a top surface of the sensor finger at a first end of the sensor finger and a second temperature probe positioned within the sensor finger between the top surface of the sensor finger and a bottom surface of the sensor finger.

A gas burner for a household appliance includes a burner housing having a mixing chamber for mixing fuel gas with primary air, a gas nozzle accommodated in the burner housing and configured to inject the fuel gas into the mixing chamber, and an annular first primary air inlet provided between the gas nozzle and the mixing chamber for drawing in the primary air. The gas nozzle has a second primary air inlet which is guided through the nozzle for drawing in the primary air. The second primary air inlet is configured in a direction of flow of the primary air through the second primary air inlet to taper at least once and to widen out again. The gas nozzle has an annular fuel gas outlet opening which opens directly into the second primary air inlet.

A domestic cooking stove comprises a frame that mounts a primary tube, one or more of nozzles for fuel injection, knobs for controlling the fuel injection, mixing tubes for modulating pressure gradient, burner tops for combustion of the air fuel mixture, and pan supports to support the vessel, heat reflectors to reflect heat, and legs to support the frame. Each heat reflector is positioned above burner top to provide secondary air entrainment for combustion by reducing a gap between an inner circumference of heat reflector and an outer circumference of the burner top to minimize heat losses. The heat reflector has a curved orientation to reduce heat transfer in a downward direction and generates eddies that increases heat transfer towards vessel bottom. The legs are positioned below the frame and has a predetermined height to maintain a gap between table top and the frame bottom surface for entrainment of air.

A cooking appliance includes a secondary venting arrangement within an oven cavity to supplement a primary venting arrangement with localized venting of combustion products adjacent a flame detector that detects a flame emitted by a gas burner disposed under the oven cavity. Doing so may assist with stabilizing the flame generated by the gas burner prior to establishment of steady state flow pattern within the oven cavity.

A pan support according to the invention for a gas stove comprises a support structure for a pan having a support surface for the pan, a chamber for a gas, in particular for an inflammable combustion mixture, the chamber being arranged in the interior of the support structure. Gas outlet openings are provided at the support structure and have a fluid connection to the chamber. The chamber has a circumferential geometry when looking from above.

A pan support according to the invention for a gas stove comprises a support structure for a pan having a support surface for the pan, a chamber for a gas, in particular for an inflammable combustion mixture, the chamber being arranged in the interior of the support structure. Gas outlet openings are provided at the support structure and have a fluid connection to the chamber. The chamber has a circumferential geometry when looking from above.