Two thoughts .... 250 stick welder will pull same amp as a stove even elec dyer. Make you an extension cord that could run out to the project.has anyone used one of these welders? im in the market for one but need one with a generator since my house isn't electrically set up for a welder. for the build I have coming up I need something that can handle it.
Another thought (which is how i would go) is a mig. 120v / 220v (switch wires to change volts) 160amp welder with gas does one heck of a job! Welded up a 80" grapple bucket few years ago with no issues and i am hard on it. I have one branded a snap-on but it is a lincoln. It welds great with just 120v and is my go to welder up to 1/4" ish. I have a 400amp tig / stick but never really use it. I have one of the old BARN TOP welder that is copper wound (many alum wound) that i pivked up for 100 used and it does the trick if i have heavy dirty metal. I have run it with a 5000w honda generator out in the woods with no problems.