so we have the oil level 1mm over the top of the nut, now this once blown up into the air is not enough to promote a flammable mixture, because the oil is cold it will spit and shoot blobs of oil instead of a fine mist, so we have to heat the oil, i use a glowplug from a diesel car, but a 110v/240v heater would probably be easier, it only need to be a small heater like 150w as the hot oil rises up, then turn on the air, light with a blowtorch and your away, turn off the heater after about 1-2 minutes as the flame will warm the oil, you will do well to let the atomised fuel up a tube with holes to let the flames out and air in, as long as the oil level remains constant and the air is 30psi, it will continue to burn forever i suppose, no soot and no cleaning as its fantastically clean burn with no smoke just heat waves, if you have anymore pictures or have anymore questions i will try to help, cheers