Heil Flame Sensor for Gas Furnaces

The Heil flame sensor (also called a flame rod or furnace flame sensor) is a replacement part for gas furnaces. It confirms that the burner flame is lit during each heating cycle. The sensor is a key part of your furnace's safety system.

Key Features:

• Flame detection: Senses the burner flame by flame rectification. It sends a signal to the furnace control board so the gas valve stays open only while a flame is present.
• Safety shutoff: If the flame is not detected, the control board closes the gas valve. This helps prevent unburned gas from building up.
• Durable construction: The rod is made to withstand the high heat inside a furnace burner compartment.
• Direct replacement: Replaces a worn or carbon-fouled sensor that can cause short cycling, nuisance lockouts, or a furnace that starts and then shuts off.
• Heil product line: Offered in OEM and replacement versions to suit different Heil gas furnace models.

A flame sensor that works properly helps your furnace light reliably and run safely and efficiently. Installation is usually simple. Turn off power and gas, remove the mounting screw, and swap the sensor.