Nordyne 661028 0.028 Natural Gas Main Burner Orifice #28

The Nordyne 661028 0.028 Natural Gas Main Burner Orifice #28 is used to regulate gas flow to individual burner ports inside heating equipment. It meters fuel through a calibrated opening to maintain a stable flame pattern and consistent combustion across the burner assembly in HVAC systems. It is fitted into the manifold of gas furnaces where it supports controlled mixing of gas and air before ignition. It is installed within the furnace section and plays a direct role in better heat generation and steady operation.