Example furnaces and methods related thereto include a burner box including at least one burner configured to combust a fuel/air mixture. In addition, the furnace includes a first blower including an inlet nozzle having an air inlet and fuel inlet. The inlet nozzle is configured such that operation of the first blower is to pull air and fuel into the inlet nozzle to produce the fuel/air mixture at a fuel/air ratio that is configured to produce flue products having less than 14 Nano-grams per Joule of nitrogen oxides when combusted. Operation of the first blower is configured to push the fuel/air mixture into the burner box. Further, the furnace includes a heat exchanger assembly fluidly coupled to the burner box through a vestibule, and a second blower configured to pull the flue products through the heat exchanger assembly.

A gas control valve (1) has a central module (40), a control module (20) and a sensor module (30). Gas can flows through the central module (40) from a valve inlet (41) to a valve outlet (42). The control module (20) is directly on the central module (40) and controls a flow of the gas through the central module (40). A throttle element (23) is fluidically arranged between the valve inlet (41) and the valve outlet (42). The sensor module (30) is arranged directly on the central module (40) and has at least one sensor (31, 32) in operative connection with the gas flowing through the central module (40) through a gas inlet (44) fluidically arranged between the throttle element (23) and the valve outlet (42). In order to control the pressure, it detects a pressure difference between the gas flowing through the central module (40) and air having a reference pressure.

A cooktop appliance includes a first burner and a second burner which are spaced apart with a grate positioned above the burners. The grate includes a first sensor finger with a first temperature sensor over the first burner and a second sensor finger with a second temperature sensor over the second burner. The cooktop appliance also includes a first control valve and a second control valve which selectively direct fuel to the respective burners. A controller of the cooktop appliance is operably coupled to the temperature sensors and the control valves. The controller may be operable for and/or methods of operating the cooktop appliance may include receiving a set temperature, receiving a first temperature measurement from the first temperature sensor and a second temperature measurement from the second temperature sensor, and adjusting each control valve based on the set temperature and the corresponding temperature measurement.

A heating device as well as a method for the operation thereof. The heating device has an outer housing that surrounds an installation space. The components of heating device are arranged inside or on the outer housing, particularly a burner unit, a fan, a fuel valve and as an option a circulation pump. At least one of these units comprises at least one electrical and/or electronic component. On one or more of the anyway present electrical and/or electronic components at least one gas sensor is arranged on the outer housing and/or inside the installation space, particularly on a support or a circuit board of the respective electrical and/or electronic component. The at least one gas sensor is configured to create a sensor signal that describes the presence and/or concentration of at least one gas component in the atmosphere. Based thereon leakages, faults, undesired backflow, etc. can be determined. Thereupon a respective measure can be initiated, e.g. the output of a warning message and/or suction of the atmosphere by means of fan.

A gas burner may include a burner body, a first gas orifice, a second gas orifice, a mixed outlet nozzle, an injet body, a gas supply line, a secondary gas line, and a flow sensor. The first gas orifice may be directed towards a plurality of naturally aspirated flame ports. The second gas orifice may be spaced apart from the first gas orifice. The mixed outlet nozzle may be downstream from the second gas orifice and directed towards a plurality of forced induction flame ports. The injet body may define an air passage and a mixing chamber downstream from the air passage. The gas supply line may be mounted on the injet body. The secondary gas line may extend in fluid parallel to the first gas orifice. The flow sensor may be positioned in fluid communication with the secondary gas line to detect a flow rate of gaseous fuel therethrough.

A cooking appliance and method of operating the same utilize a multi-level valve system that regulates an output power level of a gas burner for an oven between a maximum output power level and at least one reduced output power level to selectively reduce the output power level of the gas burner during at least a portion of an oven warm-up operation, e.g., to improve burner operating characteristics during the oven warm-up operation.

A cooking appliance and method of operating the same utilize a variable electromechanical valve to regulate an output power level of an oven broiler gas burner for a cooking appliance. Among other benefits, in some instances broiler control during cooking may be decoupled from oven warm-up, and in some instances support may be provided for automatic and/or user controlled broiler output power levels and/or automated broil profiles.

An assembly for injecting a gaseous combustion agent into a combustion zone, the assembly having a chamber having an inlet, through which the agent is introduced into the assembly; at least one primary injector configured to convey a primary flow of the agent from the chamber toward the combustion zone, at least one secondary injector for conveying a secondary flow of the agent from the chamber toward the combustion zone, a pressure detector; a regulating; and a control system connected to the pressure detector and to the regulating system, the control system controlling the regulating system so that the flow section of the at least one secondary passage is regulated as a function of the pressure or of the variation in pressure detected by the pressure detector.

Gas cooktops disclosed herein may include a proportional solenoid valve controlling gas flow to a gas burner, where the proportional solenoid valve has a continuously variable range of positions. A user interface (UI) element associated with the proportional solenoid valve may be utilized to control a linear voltage regulator having a continuously variable output voltage. The output voltage of the linear voltage regulator is coupled to a solenoid of the proportional solenoid valve, such that the gas flow to the gas burner has a linear relationship with the output voltage of the linear voltage regulator.

Embodiments relate generally to mounting components of a furnace. A mounting assembly may include brackets attached to a burner box of the furnace. Each bracket includes an opening configured to receive a gas line, a recess configured to receive a gas supply valve, a pressure transducer aperture configured to receive a pressure transducer, and slots adjacent to the pressure transducer aperture. The slots are configured to secure the pressure transducer to the bracket.