Abstract: The invention concerns a device for quick starting a reformed gas converter. A first fuel nozzle vaporizes fuel supplied thereto and directs the fuel towards a flame tray. An oxygen carrying gas is combined with the vaporized fuel and the mixture is ignited by a suitable ignition device. The hot gases generated permeate through the device to pre-heat a catalytic converting material such as a perforated sintered block. A second fuel nozzle, after the converting material has been pre-heated to a minimum temperature, directs a stream of vaporized liquid fuel against the heated block. The reform gas generated passes into the reform gas generator proper as fuel therefor. By control of the combustion temperature, the hot gases generated by the ignition step when they pass through the sintered block will also be partially converted to reform gas, suitable for fuel for the generator proper, thereby allowing immediate operation of the generator.