I don’t think my title is very good but I didn’t want it to be too long
The way that my gas hob works is that I push in and turn
the knob of the burner that I want to use so that the gas starts coming out. When I activate the spark and the burner is lit I can stop pushing in the knob and the gas will keep flowing. If I stop pushing in the knob without lighting the burner then the gas stops flowing immediately, even though I haven’t turned the knob back to zero. Why does the gas not keep flowing like it does when the burner is lit?
In: Other
The burner contains a device called a thermocouple – it acts as a switch that reacts to the presence of sufficient heat. If the heat (from the lit burner) is not there, the thermocouple will switch the gas off.
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