this is a factory-calibrated

Optimized Starting Torque: The 145-175 microfarad rating provides the high-surge capacity required for high-rebound compressors and heat pumps

CWSE rotation assembly is critical for maintaining furnace pressure switch reliability and preventing system lockouts caused by inadequate venting

Enhanced Safety Logic: Prevents burner operation if intake or exhaust flow is restricted

Resideo Q4100C9044 Hot Surface Ignitor 320734-701 this is a factory-calibratedWhen you are out on a service call and encounter a furnace with a cracked or carbon fouled ignitor, you need a reliable silicon carbide hot surface igniter that drops right in. The Resideo Q4100C9044 is a professional grade 120 Vac replacement engineered for standard gas fired appliances. This 120 volt hot surface ignitor is compatible with both Natural and LP gas systems and is specifically designed to withstand the thermal stresses of repeated