ensuring seamless integration with commercial-grade power supplies

this component provides the exact physical footprint and port alignment needed to restore safe furnace operation without the field-modifications often required by generic alternatives

the Functional Devices track mount relay offers the mechanical durability and electrical performance required by veteran field technicians and electrical contractors

facilitating a high-integrity thermal barrier between the front header and the heat exchanger

replacing a fouled heater is standard practice to restore system reliability

Lochinvar & A.O. Smith 100189054 Collar 326058-755 ensuring seamless integration with commercial-gradeThe Lochinvar & A. O. Smith 100189054 Collar is a precision engineered 4" flue collar essential for maintaining the structural integrity of high efficiency venting systems. As an OEM component, this kit provides a secure, gas tight transition between the appliance and the exhaust infrastructure, preventing hazardous leaks and ensuring optimal draft performance. This specific part is a direct replacement for legacy units, as 100189054 is identical to