Abstract: The invention relates to a heating device (100) employing catalytic combustion of gas, especially of petroleum gases, comprising:a flat combustion enclosure (110) delimited by two parallel large plane walls (111, 112), at least one of which is a heater plate made of a metallic material, the said combustion enclosure (110) being provided with at least one gas inlet (130a, 132a, 132b, 134a) and one outlet (111a, 111b),a gas circulation circuit, devised inside the said combustion enclosure (110) between each gas inlet and each outlet, the gas circulation circuit passing through at least one catalytic contact surface (121a, 122a, 123a, 124a).

Abstract: A burner operating on liquefied petroleum gas comprising a tubular barrel having an inlet for the liquefied petroleum gas. The end of the tubular barrel is provided with a swirl chamber that debouches into a calibrated central injector port. A cylindro-ogival end piece is attached to the end of the barrel and the axial position of the end piece with respect to the injector port is varied to vary the flow rate of the burner.