elcetricity question

I'm going to approach it another way, and ask what you plan to weld. If it is thin auto sheetmetal you "may" get by with a 15 amp. circuit. I would prefer a dedicated 20 amp, but it don't look like you are going to get that!
Also, note the duty cycle. Whatever you plug it into you can only weld for short bursts.
My 2 cents.
C