So it seems a sub-panel is the way to go. People have mentioned 2-2-2-4 aluminum wire. I'll admit, I know nothing of this wire. Some googling did help, but seems like it is all wire for burying. I will need to run this wire though the house. I suspect that a conduit could/should be used? But at the rate of building materials these days, if I have to buy conduit with aluminum wire, is there any real savings over Romex? Getting back to the wire, can someone recommend a 2-2-2-4 wire that I should use for this 100ft run?
Along those same lines, I know nothing of sub-panel installs. If I was made of money, this would be hired out. But since I'm stretched very thin on this project already, and the wife keeps bugging me about how much more this welder is going to cost, I need to do the work myself. My retired friend is apparently out of the state visiting family for the summer. He is unavailable.
As to the amount of power I have in the home. Currently have a 200amp service. That services a few MAJOR circuits already in the home. To name a few: range, dryer, heat pump and AC, furnace, 50amp brewery, two well pumps (yes, two.), and a host of smaller 110 circuits. I get that not everything is running at full capacity 100% of the time. However, the well pumps kick on, the AC kicks on, the wife fires up the dryer, puts a kettle on the stove while she does her laundry, while I'm outside welding in the garage. It's possible that the house will pull 200 amps.
But I'm certainly not opposed to it running this circuit/sub-panel. I just know that I will need more power, eventually.
I can, in the main panel, make space for a 100amp breaker.