In article ,
says...

We have acquired a weed torch at a car boot yesterday.
The couple used to run a gardening business. They told us it runs on
petrol! It's definitely got petrol in it anyway!

Apart from looking very worn it's much like
http://www.mowermagic.co.uk/acatalog...me_Weeder.html

OMG Do NOT use petrol in it, that would be very dangerous indeed.

They are made to burn parrafin only.

Janet