OK, once you got it all set up, oxy pressure around 12, acet pressure around 5, turn on and light acet, observe the smoke coming from the tip of the yellow flame, turn up acet till the smoke JUST dissapears, then turn on ox and bring cone back to torch with a rounded cone tip= neutral flame for welding or brazing. Too much heat? smaller nozzle, to little heat, go bigger. You cannot increase the heat by adding more acet!!! For brazing you will need clean metal, borax flux, and plain or fluxed rods. heat the work to dull red and apply flux, heat rod tip and dip in flux, apply a blob of braze to job, and heat job till braze runs over the surface like solder, add more till job is done. If you are using ready fluxed rods you only need to flux the work at the start, then just feed in the rod. If it doesnt run like solder, it is not clean enough, or not hot enough or both! If it spits and boils off the job, its too hot! practice!