IN my 'hot works safety course' the teacher
explained very carefully
what can happen if you pour petrol carelessly (no stream of petrol thru
air which is longer than i think he said 10 cm.) Beyond that means a
risk for ignition due to static electricity.
I was told to make sure the 2 tanks/cans were electrically conencted and
conencted to a good local earth (not mains earth!). I cna't see how this
would harm thigns :-)
Personally it is entirely possible that i wouldnt catch the implications
of the fact that the heater inside the kitchen which i currently is in
always has a flame inside if travelling abroad to for example England.
Older heating boilers (and gas cookers) did indeed have a 'pilot light'
(aka a 'bypass;) which burns continuosly to light the main burners.
Modern ones have electrical spark ignition.
However, I am pretty sure in the incident I refered to, the person was
actually cooking something at the time she was pouring the petrol and
thus had a main burner lit too.
-tony