Fuel burner control apparatus
Fuel burner control system
Fuel burner sequencing device with safety checking means
Fuel ignition control arrangement employing dual flame sensors
Fuel supply and ignition control system employing flame sensing
Gas burner control for a bake oven
Gas burner control system
Gas valve relay redundant safety
Hot surface direct ignition system for gas furnaces
Ignition and control system for gas burning apparatus
Integrated furnace control having ignition switch diagnostics
Interrogation of multiple switch conditions
Laboratory burner apparatus
Method and apparatus for reducing nitrogen dioxide (NO2)...
Method for operating a gas burner
Microcontroller and system for controlling trial times in a furn
Microprocessor controlled fuel and ignition control for a fuel b
Multi-level flame curent sensing circuit
Primary gas furnace control
Primary gas furnace control