Smith Cyclone MXi and BTH models

which then lights the main burner

ensuring consistent resistance-to-light ratio monitoring

and commercial heating units where maintaining specific WC pressure settings is essential for system integrity and combustion efficiency

this valve is built for seamless integration into 48VT and similar high-efficiency cased coil series

Lochinvar & A.O. Smith 100337717 Flange Gasket 323613-751 Smith Cyclone MXi and BTHWhen you are in the field performing standard maintenance or a full teardown on high efficiency hydronic systems, the Lochinvar & A. O. Smith 100337717 Flange Gasket is a critical component for ensuring a gas tight seal. This genuine OEM replacement part replaces the legacy part number 100133549 and is specifically engineered for precision fit within Lochinvar Power Fin (PF) series boilers, including the PF 250, PF 500, PF 750, and PF 1000 models. As