Originally Posted by Dry Run
This was touched on a while back........not safe at home or with your own vessel. A while back we managed to (used to) practice emergency inflation with butane/propane that was introduced into tubes for a few seconds and then lit.
Don't try it even on a scrap boat. These had sponson liners and it was all a bit guess work. It did work though. Was intended to reinflate a burst-then-fixed tube whilst afloat. Can't ever imagine actually doing it in a real life situation but this was all a bit extreme.
You can inflate tyres this way too.