The Lochinvar & A.O. Smith 100265150 Ignitor Kit is a reliable ignition replacement designed for FB series units from models 1501 through 2001. This kit generates the necessary heat or spark to ignite the gas burner, ensuring safe and consistent startup of the heating system. Commonly used in commercial boilers and water heaters, it restores dependable ignition performance, reduces ig... https://www.partshnc.com/kignitorfb-1501-2001-3