Reznor 11831 Orifice Key Benefits Precise Thermal Call:

Key Benefits Precise Thermal Call: Calibrated with a 190°F open and 160°F close range for optimal system protection

This component provides the rapid heat-up and reliable gas ignition required for high-efficiency appliance operation

While possible

Engineered for maximum evaporative efficiency

Reznor 11831 Orifice Key Benefits Precise Thermal Call:The 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.