Primary oil burner safety control and intermittent ignition syst
Process and device for operating a gas burner
Proven pilot fuel ignition system with sampling flame sensor
Regulating device for an air ratio-regulated burner
Safe start check circuit
Safe start fuel burner control system
Safety device for boiler comprising a time delay protected...
Self-checking automatic pilot fuel ignition system
Self-checking safety switch control circuit
Self-proving burner igniter with stable pilot flame
System and method for controlling the operation of a primary bur