I tested out my forge again today and I made small adjustment as you said Frosty. And I think it seems to be running well I just need to use it more and get used to how it runs.
I was also reading somewhere that the sound of the forge will change at the point where the mix is pretty much neutral. There is a point where it really roars and then slightly past that point it rumbles a bit more. Does that make sense?
A couple more questions. The hole in the insulation for the burner tip is the same size as the outside of the burner or should it be the size of the inside of the flare tip? Or even taper out the closer it gets the the chamber?
There is a tiny gap around the burner flare, about 1/16 of an inch. Would it run better if I stuff something in there?
The burner gets too hot to touch a long way up the burner and is cool about an inch from the gas nozzle. I probably had it running hotter than I would for normal forging this time though.
Sorry about all the questions but I like to do things properly.
Thanks
Nathan