A controller for an oil fired burner for operating the ignitor initially in an interrupted mode, and instructing the burner to switch to intermittent ignition for a plurality of call-for-heat (CFH) cycles if it is determined that the flame quality is insufficient during the flame-proved period. On the last predetermined iteration cycle, a reset condition occurs; setting a counter back to zero, and a retry ignition is performed to operate once again in interrupted ignition mode. When the apparatus is in interrupted ignition mode, if the current CFH cycle ends normally by satisfying the call, the ignition will remain in the interrupted ignition mode.

A method of operating a cooktop appliance in a precision mode includes monitoring a temperature with a temperature sensor and starting a vaporization timer when the monitored temperature enters a vaporization band. The method also includes freezing the precision mode when the vaporization timer expires and the monitored temperature is within the vaporization band.

A gas manifold for a convection conveyor oven includes an elongated housing having a wall that at least partially encloses an interior volume; a gas inlet in fluid communication with the interior volume and extending through the wall; a plurality of gas outlets in fluid communication with the interior volume and extending through the wall; a plurality of seat inserts removably coupled with a plurality of gas outlets; a plurality of valve openings formed in the wall and aligned opposite the plurality of gas outlets; and at least one valve removably coupled to the wall and aligned with a first valve opening, wherein the valve is aligned with a first gas outlet and has a first position in which a first seat insert is not in fluid communication with the gas inlet.

Pellet grills including a control system that implements, manages, and/or controls various ignition-based protocols are disclosed. An example pellet grill includes a cooking chamber, a burn pot, an ignitor, and a controller. The ignitor extends into the burn pot and is configured to ignite pellet fuel located within the burn pot. The controller is configured to detect a temperature pattern of the cooking chamber corresponding to a flame out condition of the burn pot. The controller is further configured, in response to detecting the temperature pattern, to command the ignitor to activate during a first duration. The controller is further configured to determine, following expiration of the first duration, whether a temperature of the cooking chamber increased during the first duration. The controller is further configured, in response to determining that the temperature has not increased during the first duration, to command the ignitor to activate during a second duration.

A gas burner assembly for a cooktop appliance is provided. The gas burner has a gas stability chamber for providing a re-ignition source to primary burner ports positioned around the burner without the noises associated with spark controlled cycled burners. The stability chamber may entrain air from above the cooktop appliance for increased stability.

Systems, methods, and circuitries are provided for a controller for a fuel oil burner system that controls a fuel oil burner to perform intermittent ON cycles. In one example, a controller includes a memory configured to store a value for one or more burner control delay periods and a processor. The processor is configured to perform an auto-set procedure in a first ON cycle. The auto-set procedure includes detecting an oil valve in the fuel oil burner; determining that the value for a burner control delay period is a default value; and in response, storing a valve-present value as the value for the burner control delay period in the memory.

The invention relates to a method and a device for determining in a heating appliance whether ignition of the mixture of fluid fuel and air has taken place, comprising the following steps of: applying an electrical ignition signal to a measuring circuit; filtering a combustion signal from the ignition signal; comparing the detected combustion signal to a predetermined pattern; and establishing that the anticipated combustion signal took place during a predetermined period of time.

According to one embodiment a gas cooking appliance is provided that includes at least one burner and a manual regulating valve for each burner. The manual regulating valve includes a manual actuator movable in a range of actuation (A) to vary a gas flow rate (Q) therethrough. At least one electromagnetic valve fluidly communicates the manual regulating valve and the burner. A control unit controls the electromagnetic valve. At least one temperature sensor is electrically connected to the control unit to measure a temperature related to a cooking process. A cooking program selector is electrically connected to the control unit and mechanically coupled to the manual actuator, such that each cooking program is associated with a gas flow rate, the program selector including at least one cooking program with temperature regulation.

The present invention relates to an electromechanical system for automating the turning off of the knobs of a stove. The system can quickly identify the occurrence of a gas leak and turn off the knob corresponding to the burner that is leaking. The system is also connected to a user interface, providing real-time information about the status of the burners and allowing the user to turn off the knobs remotely. The system has an improved service life, does not considerably change the aesthetics of the stove and can be designed to fulfil different torque requirements. The invention also relates to cooktops comprising said system.

Control system for controlling the pilot flame of a combustible gas device, which includes a pilot burner, a main burner, and a valve assembly, which includes a pilot valve that allows/intercepts a flow of gas directed towards the pilot burner, and a main valve that allows/intercepts a gas flow to the main burner, the valve assembly moveable between a closed OFF state, a PILOT state, and an ON state, where gas flows to the main burner. The control system includes a detection device that generates a state signal, and a control unit including a timer, the control unit is operatively connected to the detection device to receive a state signal and to an actuator to close the valve. The control unit starts the timer when the state signal represents the PILOT state, and actuates the actuator for the pilot valve to close it when the timer reaches a preset limit.