I have been told by some people at a welding course that an oxy-acetylene system is so much better for silver soldering than my air-LPG torch which I currently use for soldering and annealing copper, but oxy-acetylene is expensive! $300 for the equipment package, and an extra $250-300 for the yearly cylinder hire, and an extra $100-150 or so in gas levy per year to boot! I just can't afford such a system. So I thought, why not use hydrogen instead? I did some reasearch, and I found they use oxy-hydrogen for underwater welding, (It gets up to 2800 degrees celsius!) and I can easily generate both gases from water using electrolysis. Instead of pressurised cylinders, I intend to get the pressure needed in the torch by using a pair of electric pumps. The torch itself will be similar to a regular oxy-acetylene torch. I also intend to make a flame cutting torch at some point as well. I've attached a diagram of the electrolysis cell and torches I intend to make. If the pictures look funny, just click to enlarge them.