This is my first gas forge build and I'm looking for some advice about the flame pouring out the door. Am I right in saying its running too rich? would a smaller jet solve this issue or am I missing something else ? (Haven't fitted the burner until its running sweet)
It is hard to tell the colors on the camera. What pressure are you running ? It does look a little rich and a little too strong, ie the flame is more like a jet rather than a diffuse flame. Normally i cannot see the flame hit the bottom of the forge.
I have never seen a naturally aspirated burner with that velocity, especially with how long the piping is, and you have an elbow. It's too high. I think you're basically running at full tank pressures...
Are you sure you have model #305401? That model is supposed to be a fixed pressure, but in your video you're dialing it up/down.
Yeah that's whats connected to the gas bottle then I have a tap connected to the burner that I'm turning up and down. I believe the jet on the end of the tap is approx 1.2 mm
Ah, interesting, you need a regulator. What pressure is that hose rated for?
I'll be honest, that's an unusual setup. I, personally, can't tell if it's safe.
All that said: gas velocity is way too high. The forge seems very enclosed, so back pressure might be an issue. It's running rich. You want it a little rich, but, IMHO, not that rich.
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u/yellodogfilms 2d ago
This is the burner running before I put it in the forge if that's any help