A. The Toyotomi 20470611 Primary Flame Rod is a genuine OEM flame-sensing component used in compatible Toyotomi Laser heating systems, including the Laser 730, Laser 730AT, Laser 731, and Laser 732.
The primary flame rod monitors burner flame presence during heater operation. It helps the heater's control system verify proper combustion before allowing continued operation, making it an important safety and performance component.
Using the correct OEM flame rod helps maintain reliable burner operation and preserves the heater's original ignition and flame detection system.