Heating device and method for operating a heating device

Abstract

The invention relates to a heating device (1) with at least one reaction unit (2) for generating heat from a reaction gas mixture which comprises hydrogen, gaseous hydrocarbon and / or oxygen, wherein the reaction unit (2) has at least one hydrogen catalytic converter (6) for flameless combustion of the hydrogen-comprising reaction gas mixture, and wherein the reaction unit (2) has at least one inlet (23) for the reaction gas mixture and / or the oxygen, and at least one outlet (24) for a heated exhaust gas mixture. According to the invention, the heating device (1) comprises at least one connecting portion (25) which fluidically connects the at least one inlet (23) and the at least one outlet (24) to one another, with the result that the heated exhaust gas mixture can be fed at least partially to the at least one inlet (23). The invention also relates to a method for operating a heating device (1).

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