Furnace Flame Rods
There are no products listed under this category.
Furnace Flame Rods
There are no products listed under this category.
A flame rod, also called a flame sensing electrode, confirms that a burner flame is present through a process called flame rectification. When the rod detects a stable flame, it completes an electrical signal that allows the burner to continue running; if the flame is lost, the system shuts off fuel flow as a safety measure.
Furnace Part Source carries a range of flame rods for commercial and industrial burners, boilers, and unit heaters, along with flame rods used in select residential furnace applications.
Common flame rod components include:
Before ordering, check the equipment data plate and the existing flame rod for the model number and part number. Confirm the rod length and diameter, since a rod that is too short may not properly detect the flame, while one that is too long can be prone to mechanical damage.
For best fit, compare:
Material compatibility also matters. The flame rod material should be suited to the fuel type and combustion environment, particularly for high-temperature commercial and industrial applications.
Our catalog includes flame rods from Maxon, Fireye, AERCO, Modine, Auburn, Armstrong Furnace, Crown Engineering, Lochinvar & A.O. Smith, and Honeywell, covering a range of residential, commercial, and industrial combustion equipment.
Not sure which flame rod you need? Use the model number, serial number, and part number from your equipment to narrow the search, or contact Furnace Part Source for help identifying the correct replacement.
Flame rod and flame sensor are often used interchangeably. Both detect the presence of a flame through ionization or rectification to confirm safe, continuous combustion.
If a flame rod fails or gives an inaccurate signal, the system may shut down the burner as a safety precaution, or in some cases fail to detect a flame that is present, causing short cycling or lockouts.
Measure the length and diameter of the existing rod, and note the mounting style and connection type. These details are typically included in the product name for cross-reference.
Yes. Flame rods are used across a range of equipment sizes, from small residential furnace and boiler applications to large industrial burners, though rod length, material, and mounting style can vary significantly by application.