Thisisover wrote: carbon dioxide concentration sensor in the air.
Are you sure
Or just a bad translation
Is it rather about CARBON MONOXIDE?
So I'm asking out of curiosity :-)
Selected from the manual ... The device is equipped with thermoelectric protection. If the combustion process is interrupted, it cuts off the gas supply, preventing the excessive accumulation of harmful carbon dioxide in the room.
So simply a thermocouple, the flame goes out, it cuts off the gas supply
Or maybe I don't understand something.