I have used a similar iron made by Ridgid. It was designed to use in places that had too many combustibles too close. I used it in very tight places that fumes from torch would be bad or of a fire did get going I couldn't get out fast enough to get it stopped. Also in places that you could not risk scorching a finished surface.
It worked perfect. Pipe had to be dry with no running dripping water. Not as forgiving in this respect as compared to a torch. A torch will boil a pipe dry faster.