The Dutch Food and Consumergoods Authority has done a test with the "spraycan" cannister-operated campingstoves.
According to them, they are a deathtrap!
When you use a too big pan/pot (which is listed in the manual as something you shouldn't do!) heat cannot escape, and the gascanister will reach temperatures of over 70 °C with the following result:
http://www.youtube.com/watch?v=6iMjw...ature=youtu.be
from:
http://www.nvwa.nl/actueel/nieuws/ni...loffingsgevaar