The main breaker is on the left and the box that the dryer in wired into is on the right. the big box in the middle supplies them both. The box in the middle has a giant pullout in it.That's not your main breaker... Is this part of the house, or an outbuilding?
Thanks for the part #'s. I need to correct something. the dryer is a 30, and the double 60 is,,, I don't know. somewhere in the last 60 years someone has scratched "AC" on that double 60 but I turned on the AC and it kept running,, I turned on the heat pump and it kept running. Ill need to figure this out.
You should use 2-2-4 service wire, Home Depot Model # 55417599, it runs $1.26 a foot in aluminum and would be rated for 60 amps for a 25 foot run. You have space on your breaker panel in space #3 for another double 60 breaker like your dryer, $8.25 Home Depot Model # HOM260CP. Dryer sockets are pricy and will be about $20 depending on what matches your welder. Your welder should pull less than 50 amps at full load and I doubt you will exceed that running a 304 on smoker thickness steel. The chart says #2 wire is good for 30 feet but you can go a few more if needed since your load won't be over 50 and #2 is good to 40' at 50 amps. That is a solid welder, I really like mine. It is simple to do but if you haven't done it before, it is a good idea to get an electrician over, it shouldn't take very long at all depending on how the wire has to run through the walls.
From what I tallied here on the forum, a 120 wouldn't cut it, or at best had mixed reviews. I figure that although a little more $$ would be spent on getting the welder functional, in the end I would have a machine that is versatile and would be capable of doing more than I would ever need,,, I hate coming up short. I might have to drop $200 and some change on some 50' leads but once I have them, Ill never need them again.The cost of an electrician, and the leads you need to run that welder?...maybe better to go with a small 120v mig welder?