Vehicle burner

A vehicle burner for heating a gas flow in a motor vehicle, the vehicle burner comprising:

• a combustion chamber;
• an injection nozzle;
• a fuel pump for delivering a fuel to the injection nozzle, the fuel pump being actuated for injecting fuel into the combustion chamber;
• an air delivery and/or air regulating means for delivering air to the combustion chamber;
• a control for operating the vehicle burner, the control being coupled with the fuel pump, with the air delivery and/or air regulating means and with the injection nozzle, wherein the burner waste gas, which is generated during the operation of the vehicle burner by the reaction of fuel with air in the combustion chamber, is used to heat the gas flow, the control determining a quantity of fuel, a quantity of air as well as a fuel pressure as a function of a heat output, which can be preset, and the control actuating the air delivery and/or air regulating means for setting the quantity of air determined, said control actuating the fuel pump such that said fuel pump is set at the fuel pressure determined, and said control actuating the injection nozzle for setting the quantity of fuel determined to set the predetermined heat output.