The twilight switch is used to switch gas lights. Up to now, theswitching systems worked with a servomotor and a control gear. The ignition is triggered by pressure switches. Due to their construction, these are much more susceptible to faults and are subject to greater mechanical wear. They were replaced by an extremely robust solenoid valve which is switched by a control board. At the same time the ignition voltage was increased from 12,000 Volts to 20,000 Volts. The energy for this is supplied by a 1.5 Volt D cell battery. If the ignition fails, a re-ignition automatic is triggered. If this also fails to ignite, an automatic safety shutdown prevents the climate-damaging CO2 from escaping into the atmosphere
