In reply to Wainers44:
I think burning is often pan-related. Now I have a Chinook nonstick frying pan, life is better.
Plus one for the Jetboil burning, especially if my mate Doug overfills it with rice - now I only boil water with it.
And we have had burning with a post-war petrol stove, tiny but totally nuclear!! (strangely enough, it belongs to Doug too).
I think a wide controllable flame range is useful, if you plan to cook rather than just boil water or instonoodles. But a thin aluminium pan with scratches on it will ruin anything.