The guys that do it full time have a 50g drum of stripper, and just dunk/submerge over night
The paint on stuff doesn't often work as well as that video, by the looks of it there was little to no prep work (that chrome should not have been shiny) and it was likely a very thin coating, just about any stripper would have lifted that coating
How well the surface was prepped makes a big difference as to how easily it comes off, as well as the coating thickness
It's a bastard to get off a well applied coating, and if it's a two stage...even worse
Burning does work quite well, and easy...that is the reason they make burn off ovens to remove old coatings