Lochinvar & A.O. Smith 100208100 Gasket 322838-753 it is intended for use

it is intended for use in systems where pressure regulation is handled by an external manifold regulator or as part of a specific OEM configuration

providing more "headroom" for the control circuit's electrical load

While this model is factory-shipped for Natural Gas

as this model lacks internal auto-shutoff

If the boiler has 24V power and the damper is open but no spark is generated at the pilot assembly

Lochinvar & A.O. Smith 100208100 Gasket 322838-753 it is intended for useThe Lochinvar & A. O. Smith 100208100 2" Flange Gasket is a high performance OEM replacement part engineered for demanding boiler and water heater applications. This 2 inch thick flange gasket is specifically designed to create a reliable, leak proof seal within the ASME rated heat exchanger assemblies and pool heater manifold systems. Built to withstand the thermal cycling typical of EnergyRite series heaters, this industrial grade HVAC gasket