When assessing burner operation, what should you do after changing an orifice size?

After changing an orifice size, the most important step is to check the flame and input at the meter. This is crucial because the orifice size directly affects the amount of gas flow to the burner, which in turn influences the combustion process. By checking the flame, you can assess whether the burner is operating efficiently and whether the flame characteristics are appropriate for the type of appliance being used. Additionally, measuring the input at the meter allows you to confirm that the gas supply is consistent with the new specifications resulting from the orifice change. Proper monitoring of these factors helps ensure safety, efficiency, and optimal performance of the gas burner.

While inspecting the burner for damage, calibrating the meter, and recording measurement readings are important tasks in their own right, they do not address the immediate and specific needs following an orifice size change as effectively as checking the flame and input. These actions should be taken into consideration, but they are secondary to ensuring the burner is functioning correctly following such an adjustment.