Welding???

[Ukprepper88]

I know very little about welding but am planning on doing a course in the near future (as soon as I have saved up) and I just wanted to double check that welding would be possible post shtf? Because from what I remember its just basically gas cannister to blow torch via a tube so no electrics involved but just wanted to double check

P.S. I will be getting the right equiptment to weld with and I'm not asking how to make do with something makeshift post shtf as I do plan on living

Thanks -Ukprepper88