Where is the igniter located?
The igniter’s location varies by device: in most consumer appliances it sits near the burner or inside the burner assembly; in vehicles it’s part of the ignition system near the engine cylinders; in industrial burners it’s located inside the combustion chamber or burner housing.
This article explains where igniters are typically found across common categories of equipment, how placement affects performance and maintenance, and safe ways to handle issues. For model-specific details, always consult the manufacturer’s manual.
Igniters in household gas appliances
Before listing the typical placements, note that models vary. Here are common locations by device type:
- Gas stove or cooktop: The igniter is usually located behind the front panel near the burner. It is typically an electric spark electrode or a glow-type device that lights the gas when you turn the knob.
- Gas oven: The igniter is generally inside the oven, near the bake burner at the bottom or in the top burner assembly, depending on the model. Some older ovens use a standing pilot light; newer ones use electronic ignition.
- Gas fireplace or space heater: The igniter sits within the firebox, near the burner. Depending on the model, it may be a glow plug or a spark igniter integrated with the burner assembly.
- Gas water heater or boiler: The electronic ignition or pilot system is housed in the burner enclosure. In modern units, the igniter and flame sensor are part of the burner assembly.
Knowing these locations helps with basic inspection and understanding symptoms like delayed lighting or clicking sounds. Always follow safety procedures and consult the manual or a professional if you suspect a faulty igniter.
Household ignition safety and maintenance
Keep access panels closed and power disconnected when inspecting ignition components. Do not bypass safety features or light a burner by other methods. If you hear unusual clicking, smell gas, or the appliance fails to light, discontinue use and seek service.
Igniters in vehicles and industrial equipment
Ignition technology varies by system. In gasoline engines, the “igniter” function is performed by spark plugs with high-voltage ignition coils; in diesel engines, glow plugs preheat the cylinders; in industrial burners, dedicated igniters sit inside the burner chamber or combustion housing.
- Gasoline-powered vehicles: Spark plugs reside in each engine cylinder, powered by ignition coils or coil packs located in the engine bay. Access and replacement are typically done from the top or side of the engine, depending on the design.
- Diesel engines: Glow plugs are installed in the cylinder head and heated to raise the air temperature before starting; they are activated by the starting circuit and controlled by the engine's electronics.
- Industrial burners and large equipment: Igniters are integrated into the burner assembly within the combustion chamber. They may be spark igniters, hot surface igniters, or flame sensors that work with the control system.
Work around ignition components should be performed by trained personnel. Improper handling can lead to gas leaks, misfires, or electric shock.
Locating your model’s igniter
Check the user or service manual for diagrams of the burner or ignition assembly. For vehicles, consult the factory service manual to identify spark plug and coil locations by engine type. If you’re unsure, contact a qualified technician.
Summary
Igniters are placed differently depending on the device: in most home appliances they sit near the burner or inside the burner assembly, while in vehicles they are part of the ignition system near the engine cylinders, and in industrial settings within the burner chamber. Understanding these common locations aids safety, troubleshooting, and informed maintenance. Always prioritize manufacturer guidance and seek professional help when needed.
