Central heating or domestic hot water boiler

A BURNER, PARTICULARLY APPROPRIATE FOR WALL BOILERS, IN WHICH, ABOVE THE AIREGAS MIXING CHAMBER, A CHAMBER PERFORATED IN ITS LOWER PART, WHICH IS FILLED WITH SMALL SUBSTANTIALLY SPHERICAL ELEMENTS, IS PREFERABLE, INTERSTICIES FROM WHICH THE MIXTURE FLOWS AND ABOVE WHICH COMBUSTION HAPPENS. PREFERRED FORMS OF PERFORMANCE ARE ALSO DESCRIBED. THE INVENTION FINDS APPLICATION IN THE MANUFACTURE OF WALL BOILERS FOR DOMESTIC USE.