Lochinvar & A.O. Smith 100109859 Ignitor 321894-708 using this HVAC blower pulley

using this HVAC blower pulley ensures the drive belt tracks correctly and maintains the intended system efficiency

This modulating temperature controller eliminates the offset common in proportional-only systems

Technicians should inspect the existing holder for cracks and reuse it or source it separately if damaged

user-programmable up to 5000 ppm

It is fully compatible with a wide range of models including the KHN

Lochinvar & A.O. Smith 100109859 Ignitor 321894-708 using this HVAC blower pulleyThe 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