Thread: Gas forge for heat treating?

Well got her going today, held temp just fine, but the burner is not working well or correctly. The flame is burning when it hits the front of the oven and not when it comes out of the burner nozzle. The mig tip isn’t entering the tube at the center off about an 1/8”, definitely not helping things but not sure if that’s the only reason, I guess I need to try some different sizes too. I tried adjusting the tip fore and aft but that had little effect. At really low pressure it burns right at the end of the burner. I also played with some different choke settings with no difference in where the burn was occurring.



With the pressure up, combustion is happening at the front under the muffle:


With the pressure turned way down, couldn’t hold temp, losing about a degree every 15 seconds at around 1475.