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 gas burner appliance for recycling wasted heat from a heating process and for distributing heat evenly to a vessel or product. A housing and a plate supported by the housing are provided for directly collecting wasted heat. A burner arm is also supported by the housing and disposed above the plate for receiving and combusting premixed fuel for uniformly distributing heat to the plate. An electric motor or a Stirling engine is supported by the housing and a gearless direct drive mechanism or chain and sprocket connect the motor to the burner arm. A thermal electric generator generates electricity directly from heat of the plate and can provide at least some of the generated electricity to the motor. A cutoff mechanism is operatively connected to the motor and to the thermal electric generator for detecting when no electricity is generated and for cutting off gas flow upon sensing that condition.

A mobile kitchen unit includes a storage container, a first module, and a second module. The first module can include a sink for receiving water. The first module can be positioned within the storage container and mounted on a first set of rails such that it can slide at least partially out from the storage container. The second module can have a stove and propane tank in one example. The second module can be positioned within the first module and mounted on a second set of rails such that the second module can slide at least partially out from the first module. In one example, the first and second modules are independently slidable with respect to one another. In an example, the second module can fit substantially within the first module with the stove and propane tank still attached to the second module.

A gas oven with stations under parallel or synchronous control includes a plurality of temperature sensors, a controller and a plurality of processing stations. An air intake device includes a throttle valve, a gas transmission pipeline and a main gas valve. The throttle valve includes a combined gas control unit and a gas valve controller. The air intake device further includes an external gas supply source, and the gas supply source is connected to the gas transmission pipeline and a bakeware. The main gas valve and the throttle valve are separately arranged on the main gas transmission pipeline. The plurality of processing stations are provided with a plurality of gas sub-transmission pipelines and throttle valve gas main transmission pipelines, respectively. The gas oven further includes a communication module connected to a remote control to control the oven by way of a remote terminal or a mobile phone app.

A system for controlling digital gas valves of an appliance utilizing a configurable duty cycle that includes a configurable ON time, a configurable cycle period and one or more configurable burner power level variables. In some instances, the configurable duty cycle may be configured at least in part by operation of a control knob, and in some instances, multiple burner power levels may be specified such that cycling may be performed between multiple burner power levels.

A system for controlling digital gas valves of an appliance utilizing a configurable duty cycle that includes a configurable ON time, a configurable cycle period and one or more configurable burner power level variables. In some instances, the configurable duty cycle may be configured at least in part by operation of a control knob, and in some instances, multiple burner power levels may be specified such that cycling may be performed between multiple burner power levels.

A mobile kitchen unit includes a storage container, a first module, and a second module. The first module can include a sink for receiving water. The first module can be positioned within the storage container and mounted on a first set of rails such that it can slide at least partially out from the storage container. The second module can have a stove and propane tank in one example. The second module can be positioned within the first module and mounted on a second set of rails such that the second module can slide at least partially out from the first module. In one example, the first and second modules are independently slidable with respect to one another. In an example, the second module can fit substantially within the first module with the stove and propane tank still attached to the second module.

A burner assembly includes a spreader, a burner base, and at least one annular burner cap. The spreader has a bottom and a combustion chamber that is defined by a crenellated wall wherein a plurality of fuel exit portions defines the crenellated wall. The burner base includes a peripheral wall. The at least one annular burner cap is coupled to the peripheral wall of the burner base and is positioned on the crenellated wall.

A system for controlling digital gas valves of an appliance utilizing a configurable duty cycle that includes a configurable ON time, a configurable cycle period and one or more configurable burner power level variables. In some instances, the configurable duty cycle may be configured at least in part by operation of a control knob, and in some instances, multiple burner power levels may be specified such that cycling may be performed between multiple burner power levels.

A system for controlling digital gas valves of an appliance utilizing a configurable duty cycle that includes a configurable ON time, a configurable cycle period and one or more configurable burner power level variables. In some instances, the configurable duty cycle may be configured at least in part by operation of a control knob, and in some instances, multiple burner power levels may be specified such that cycling may be performed between multiple burner power levels.