To provide an organic synthesizer that can conduct a pressure reaction and an atmospheric reaction in one organic synthesizer. The cooking stove includes a combustion chamber which encloses, contains and regulates the entire combustion process. As a result, the detection performance of the data sync signal can be improved while maintaining the data discrimination performance. For the regeneration function, the connection of the additional pressure fluid line that forms the return side of the consumer with the reservoir can be blocked by a shutoff valve device located between the consumer and the control valve.