Firing controller DN 20 (¾”) external thread

The firing controller controls the air supply for burning. The temperature in the heat generator is recorded via an integrated thermostat. The thermostat is connected to the supply air flap via a lever rod and a chain. The air supply is controlled independently of the boiler flow temperature by opening and closing the supply air flap.
• Operating temperature: max. 120 °C
• Ambient temperature: max. 60°C
• Chain length: 1.2 m
• Materials
- Set button: Plastic
- Housing and immersion pipe: Brass, nickel-plated