York S1-029-20423-045 0.082" Burner Orifice #45

The York S1-029-20423-045 Burner Orifice is a metering component used to regulate fuel delivery into a burner assembly. It contains a precision opening that control the amount of gas entering the burner manifold ensuring proper combustion conditions inside heating equipment. In HVAC systems, it is installed at the burner inlet, where it help maintain consistent flame shape and stable ignition by restricting and directing gas flow to each burner port. The #45 designation with a 0.082-inch opening corresponds to specific fuel output requirements for natural gas application. It is commonly replaced during servicing or fuel setup adjustments,