I thought I'd post this to illustrate how little fuel is required to bring 500ml of water to a rolling boil. The stove is the Einzel Kocher EK-750 UL and came about thanks to a request from a guy in Sweden for a lighter potstand than the standard wire mesh type. I've made a lighter grate for this one as it's the one I use myself, trail weight including potstand and foil ash tray is 79g. The windshield is made from a double layer of kitchen foil and weighs 16g.
It took 18 mins from setting up to reach a rolling boil so the video is in 2 parts.