You should go speak to your Helpfull Squippers (Proper Service Squippers, not this civillian rubbish), get hold of 3 empty glue tins (KB156) bodge tape them together first one with 2mm hole in bottom, 2nd 4mm hole and the 3rd with a 6mm hole, using a plant sprayer to spray a fine mist into the chamber and ignite with one of them trigger type gas burner lighters! works really well, if you can find a piece of drain pipe about 3ft long to bodge onto it, will fire an apple over a hangar no probs
good luck
WW