Our DBO is designed to reduce the time your boiler will burn gas or oil without affecting the temperature of your building, giving your boiler more intelligence. A boiler thermostat generally maintains temperatures in the boiler between 70 and 80 degrees C. The DBO ensures a boiler only responds to the needs of the building – not the boiler, which can often cool a couple of extra degrees and is sufficient to double the length of the cooling curve. The DBO takes itself in and out of circuit every 50 boiler cycles and measures the cooling and firing times for each cycle. The DBO makes savings possible without the need for boiler temperature or footfall adjustments.