Nordyne 661044R 0.044" Burner Orifice #44

The Nordyne 661044R Burner Orifice is a metering component used to regulate gas flow into a burner assembly. It contains a precision opening that controls fuel delivery so the combustion process matches required operating conditions inside heating equipment. In HVAC systems, it has a burner manifold, where it shapes and limits the gas stream entering the burner ports, helping maintain a consistent flame during operation. The #44 designation with a 0.044-inch opening corresponds to specific fuel output settings for natural gas applications. It is commonly replaced during servicing, or system adjustment to match correct firing rates and combustion balance.