Power supply independent device for producing a hot air flow

摘要

The invention relates to a power supply independent device ( 1 ) producing a hot air flow ( 2 ). Heat ( 4 ) is produced by a catalytic heating element ( 5 ) which is energized by a liquid fuel, the hot air flow ( 2 ) being produced by an electric fan ( 7 ). The inventive device ( 1 ) is provided with a fuel cell ( 8 ) which supplies electric power to the fan ( 7 ). Said device comprises a tank ( 10 ) for the liquid fuel connected with the aid of a valve ( 11 ) to the fuel cell ( 8 ) and the heating element ( 5 ) in such a way that they are jointly supplied with the liquid fuel ( 6 ).