Inherited a little flux core welder a while ago if you know of any good books or videos please share. Had a stick welder years ago but never got a feel for working on thin stuff, I'm guessing this will be the opposite problem.
I het the general theory looking for like practice drills and how to read a weld to know what wrong
Lotta old Victorian homes and factories from that Era did the same thing (without water obviously just a big tower to catch the wind). More like an attic fan than an AC in those cases, still a pretty clever way to move air without electricity. Always impressed by how clever people were back in the old times