Lochinvar & A.O. Smith 100109859 Ignitor 323613-751 Durability: Features sealed ball bearings

Durability: Features sealed ball bearings and high-grade insulation to handle technical demands of continuous runtime

Precise Throttling: An integrated Amodel flow characterization disk provides a true equal percentage curve for superior part-load efficiency

Operating at 40 watts

always verify if a separate gasket set or high-temp RTV is required for your specific furnace model to ensure a gas-tight seal during installation

a full replacement of the head mechanism is the standard professional solution

Lochinvar & A.O. Smith 100109859 Ignitor 323613-751 Durability: Features sealed ball bearingsThe 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