readings below 1

and steam systems up to 366°F

ensuring all mounting points and terminal connections align perfectly for faster job site turnaround

preventing dry-air delivery

Engineered with a robust brass body and reliable NBR seals

Lochinvar & A.O. Smith 100109859 Ignitor 320819-301 readings below 1The Lochinvar & A. O. Smith 100109859 Ignitor is a high performance silicon carbide hot surface ignitor engineered specifically for technical compatibility with premium Lochinvar Knight and A. O. Smith water heaters. As a critical OEM replacement part, it ensures rapid thermal response to bridge the gap between the call for heat and burner ignition, maintaining the tight combustion tolerances required by high efficiency condensing boilers. This