I got a burner for practically nothing, but I had to go out and get a regulator for it. I also went ahead and got an extension hose. In looking at it closer, and doing some Googling, I think I need an orifice adapter. I also fear there is something else I am missing, but do not know what. See pic. What holds that plate (which I believe is some type of air intake/regulator) in place? Any help or close up pics of how all this connects would be greatly appreciated.