The Rinnai 104000249 Water Heater Flame Rod and Electrode Kit supports burner ignition and flame detection in compatible water heaters. The electrode produces the spark needed to ignite the gas, while the flame rod detects the presence of a burner flame. These components work with the ignition system to monitor burner operation. This replacement kit is suitable for worn or damaged ign... https://www.hnkparts.com/104000249-rennai-kit-flame-rod-electrode-k/4-104000249.html