Methods and systems are provided for a fire device. In one example, a method for control of a fire device includes receiving a wireless input selecting a first mode, actuating a two-stage valve included in the fire device to open to a second stage, via a first control signal, to flow gas through a main gas channel, actuating a variable valve positioned on the main gas channel downstream of the two-stage valve to open to a first position, via the first control signal, to flow gas through the main gas channel, and receiving a second wireless input to adjust the variable valve responsive to an audio input.

To grasp a state of a combustion apparatus based on a flame state of a burner, a discharge number measurement unit measures the number of discharges of a flame sensor per unit time. A light emission information generation unit generates, as light emission information, information obtained based on a value obtained by dividing a total (accumulation) of the number of discharges per unit time measured by the discharge number measurement unit by a total measurement time. A determination unit determines the state of the combustion apparatus to be inspected based on the light emission information generated by the light emission information generation unit as described above.