Welding galvanized is highly scoffed at. It emits a yellow greenish gas that can cause nausea, vomiting, headaches, blurred vision, or (like my freinds brother who welded it for years cause us pansies wore respirators and did it outside on a very, very limited basis) EMPHYSEMA. Not just minor, but a severe case that has him on a list for double transplants. I suggest to you a 3m respirator, wide open outdoors, grind away the galv. and then weld. This is a longer process but the end result is the same. You will still have to coat the new weld and place you ground. This is alot safer than burning the galvanized off. Sorry for the same info as Scott, but we see alike on this one, and I want you to know the consequence before you lean over and huff it. Wire welders usually don't get hot enough unless you have a pretty big rig. The cold galvanized is better than paint.