Jetboil! Is there a good, cheap alternative to be used purely as a power cut kettle? All our burners take a bit longer. My ancient primus micron (older design with the wure gauze centre of the burner) is our fastest burner.
I'll be honest, mine is a cheap version (£20) - I know there have been reports of cheap ones leaking etc. but mine has worked perfectly for several years and I couldn't see any difference at all when I compared it to a labelled 'Jetboil'.