This OEM Reznor replacement part features durable brass construction

Field-Proven Durability: Features high-temperature ceramic construction that outlasts standard plastic versions in high-heat zones

Always verify the part number against your specific unit's rating plate or manual before installation

High Pressure Rated: Engineered to maintain seal integrity under standard refrigeration vacuum and pressure ranges

swapping in this Heil Quaker furnace part is the standard professional fix

Reznor 11831 Orifice This OEM Reznor replacement partThe Reznor 11831 Orifice is a critical OEM replacement part designed for precision fuel regulation in gas fired heating systems. This brass gas orifice plug is specifically sized as a #35 natural gas orifice, ensuring the exact manifold pressure and BTU input required for optimal burner performance. In the field, installing the correct unit heater orifice is the difference between a clean, efficient burn and dangerous overfiring or soot accumulation.