The objective of the present invention is to provide a combustion device capable of informing an amount of used gas, in which an air of gas temperature is reflected, to a user and a method of measuring the amount of used gas. To this end, the combustion device includes: a burner configured to burn gas; a blower configured to supply air for combustion to the burner;

gas valves configured to supply gas for combustion to the burner; a gas temperature sensor configured to measure a temperature of gas supplied to the burner or the blower; and a control unit configured to control the number of revolutions of the blower, calculate a first amount of used gas for a present operating heat quantity burned according to a signal input by a user, and compensate the calculated first amount of used gas with a measured gas temperature measured by the gas temperature sensor to calculate a second amount of used gas.

Example embodiments relate to a burner including a control unit and an ignition and ionization electrode for igniting and monitoring the burner flame, wherein the ignition and ionization electrode is arranged in the flame area of the burner, is electrically coupled to a discharge circuit and provides an ionization signal when the flame of the burner is switched on, wherein the control unit provides an output signal for actuating the burner on the basis of the ionization signal, and wherein the discharge circuit is connected to a DC voltage source. Example embodiments further relate to a method of monitoring and igniting the flame of a burner and to a circuit arrangement for a burner.

A movable fluid fuel heater to heat air and to introduce it into an environment to be heated. The heater includes a flow rate variator device for varying the flow rate of oxidizing air introduced in the combustion chamber by a forced ventilation device between a minimum flow rate value and a maximum flow rate value. The heater also includes a reference device comprising a plurality of reference values of a parameter representative of the pressure and a plurality of reference temperature values of the environmental air upstream of the combustion chamber. The reference device is configured to suggest an optimal setting value to set the flow rate variator device, at each pair of values formed by a value of the plurality of reference values of a parameter representative of the pressure and a value of the plurality of reference temperature values.

A method is provided for heating a furnace arranged with a heating zone heated with a burner providing a flame extending in a longitudinal direction and fed with a fuel and a primary oxidant, the burner is operated with a mass relationship between the fed fuel and primary oxidant permitting less than 50% of the fed fuel to be combusted using the primary oxidant, and a respective pair of secondary oxidant lances are provided one either side of the furnace pointing into the heating zone, lancing a secondary oxidant into the heating zone downstream of the burner substantially parallel with a cross plane, such that a temperature is measured downstream of the lances and that each of the lance pairs includes an upstream, low-speed first and a downstream, high-speed second lance, wherein the amount of secondary oxidant supplied via the first lance is regulated to achieve a homogenous lateral temperature profile. A related furnace is also provided.

A heater system for preheating a vehicle and method of operating the same, wherein the method of operation is dependent upon the temperature of the coolant fluid in the vehicle coolant system.

Example embodiments relate to a method of starting a burner device. The temperature of the combustion air is measured, and a temperature-dependent set value of the heating energy of a glow element is specified. Example embodiments also relate to a heating device having a burner device.

A plurality of water heaters are connected in parallel with respect to a hot water supply path, and each of the plurality of water heaters has an exhaust path connected to an exhaust path assembly. Each of a plurality of sensing units is configured to be shifted from an electrically conducting state to an electrically non-conducting state when each of the plurality of sensing units senses an abnormal condition about air supply or exhaust. A series circuit of the plurality of sensing units is electrically connected in series to a resistance element between the power supply line and the ground line. The controller is configured to monitor an abnormal condition about air supply or exhaust based on a voltage on a node between the series circuit and the resistance element.

A movable fluid fuel heater to heat air and to introduce it into an environment to be heated. The heater includes a flow rate variator device for varying the flow rate of oxidizing air introduced in the combustion chamber by a forced ventilation device between a minimum flow rate value and a maximum flow rate value. The heater also includes a reference device comprising a plurality of reference values of a parameter representative of the pressure and a plurality of reference temperature values of the environmental air upstream of the combustion chamber. The reference device is configured to suggest an optimal setting value to set the flow rate variator device, at each pair of values formed by a value of the plurality of reference values of a parameter representative of the pressure and a value of the plurality of reference temperature values.

A heat controlled oven system includes a plurality of oven levels, including an oven belt and gas burners; a gas flow network, including a gas supply line, a variable flow control valve, and on/off flow control valves; and a heat control unit, including a processor, a non-transitory memory, and input/output component, a heat modeler, a heat manager, a feedback controller, and a valve controller, such that the heat control unit is configured to calculate an estimated heat demand to adjust to a temperature set point, based on a heat model of the at least one oven level, and further calculates an optimized heat demand using a control loop feedback algorithm. Also disclosed is a method of heat calculation for an oven, including defining a heat model, calculating and optimizing the estimated heat demand, calculating and setting a variable valve position for the gas burners.

A burner control valve with speed control includes a speed control assembly for metering loading pressure into a loading pressure chamber to prevent pilot light blow out and/or backfire in a downstream burner.