In this case-where he's welding the 16-gauge replacement panel to 18-gauge original sheetmetal-his voltage setting is 2, and the wire speed is 22, as indicated by the 2/22 noted here. The ...

Use the smallest wire diameter possible whilst still ensuring adequate deposition. 0.023 should be fine unless you’re welding 18 gauge or thicker in which case you may need to go up to 0.030. Smaller ...