The stove was interesting because it is small and simple, quite like the Optimus Svea 123. This one is in stainless steel, and has a silent burner. It does not have an over pressure relief valve, but it has a curved bottom like an LPG bottle. If you look further on them the heat shielding plate between burner and tank on the Svea does not be here. The top part is fixed by 3 screws. The preheating room is more easy to fill, and it comes with a little alcohol bottle and a funnel for filling the furl tank with slightly less than 0.2 litres of white gas. Buing from China may be a risk, and this one cost less than 1/2 of the Svea, but warranty? reclamation's? quality? It came, and I fired it up, and it was a leak where the burner was screwed on the tank. Easy fix for me, just remove it and use some thread sealant. After that the stove is good, the pot stands relatively sturdy and the burner is easy to use, simmer OK. I tried to boil 1 liter water and take the time. Temperature (deg C) of air 9.5 Water 19.5 boiling time exactly 5 minutes. Manual: https://classiccampstoves.com/threads/iwalker-g43.56003/
Not much science, but I hope it will help. I cut off the bottom of the can so the "brim" became a little stiffer, and cut a 12mm hole in the center, and a smaller off center in case of something that should go down to the bottom. The preheat was quicker, with less alcohol, and it started up nicely, but I have not tested it for real.
Just a quick test, boiling 1 litre of water (5 min) and temperature measured and written on the picture. By my opinion, this works!
