Flue Thermostat – 402100003 – De Dietrich JJJ005310240

Monitor and control temperature in your boiler or heating system with this flue thermostat. It senses the temperature of exhaust gases and can trigger safety shutdowns or adjust operation. Replacing a faulty flue thermostat is crucial for maintaining efficiency and preventing overheating. This part is a standard component in many gas-fired appliances and is essential for safe operation.