Its snap-fit design

By utilizing the Warrick 3Z1B with 3Z1A suspension wire

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

preventing internal terminal overheating

Reznor 11831 Orifice Its snap-fit designThe 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.