That was no LPG heater though , that was just a gas bottle that leaked if i remember the story , i guess the bloke returned to van and pressed the central locking and boom .
It must be very rare for a bottle to fail , i use one but must admit that it does get disconected every time the van moves and when in use the back and sides are open , plus it comes out and goes in the back yard at night , but it happens so be as carefull as you can