Quote Originally Posted by wdrzal View Post
Yep all the extras add up. While acetylene is the hottest of the 2 gas mixes you want to use a cool (relatively speaking) quit flame with no Blow for brazing. You want the inner most flame to go from a pin point to just starting to feather,you'll see 3 or 4 small points on the inner flame. if the flame is noisy there is too much of one or both gases.

Ask the guys at the welding shop to demonstrate,most shops will.
Thanks for the tips Walt. The folks at Praxair did a demonstration for me and gave me a Harris book on brazing. The Harris book on brazing has a lot of content. Tip sizes, what brazing alloy they would recommend for the given metal(s) along with pictures and captions of what a proper flame should like. I'm thinking about scanning the book (can't find it online) and making a .PDF for people that are just starting out, like me.