Nordyne 661045R Main Burner Orifice #45

The Nordyne 661045R Main Burner Orifice is used to adjust the natural gas flow to the assembly and determine the appropriate amount of fuel to supply the combustion in the HVAC systems. It has a size opening of 45, which dictates the amount of gas that can pass under the operating conditions, which assists in the correct fuel-to-air ratio to enable stable ignition and flame. Placed in the gas train in front of the burner ports and are threaded, efficient in heat production, and dependable in working in gas-fired furnaces and other heating parts of the equipment.