Abstract: A burner suppliable with a mixture of air and fuel, comprising a burner body provided with a diffuser in which openings are made for the passage and subsequent combustion of said mixture, said diffuser is divided into a plurality of diffuser elements that are adjacent to one another, each diffuser element being at least partially free to dilate in at least one direction.

Abstract: A system for feeding a plurality of burners (2a, 2b, 2c, 2d, 2n) includes a manifold (1) into which a flow of gaseous fuel is introduced via an inlet duct (5), said manifold (1) including an hollow body (3) provided with a plurality of outlets (6) each of which can be connected to a respective burner (2a, 2b, 2c, 2d, 2n), said manifold (1) further comprises distributing means (4) for selectively distributing said fuel to said burners (2a, 2b, 2c, 2d, 2n), said distributing means (7) being provided with connecting means (8) with one or more of said outlets (6).

Abstract: A burner (1), with natural or forced suction, comprising a burner body (2), into which a mixture of fuel and air is introduced, said body (2) being provided with openings (4) for the flow and subsequent combustion of said mixture and comprising a Venturi tube (3) into which a jet of said fuel is introduced under pressure and extension means (6) for said Venturi tube (3); said extension means (6) is removably coupled with said Venturi tube (3).