A modulating burner in a boiler system adjusts its firing rate – the amount of fuel it burns – to precisely match the heating demand. This adjustment is achieved through a control system that varies the fuel and air supply to the burner. The control system is driven by feedback from several sensors that monitor key operating parameters. One of the most critical sensors is the water temperature sensor (or steam pressure sensor in steam boilers). This sensor continuously monitors the temperature of the water (or the pressure of the steam) being produced ....
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