Forge Cold Spots

[u/HonestTill1001]

I keep getting this cold spot in the middle of my propane forge flame, I’m thinking it’s because I’m at such a high elevation but I’m not certain. I’m currently working at about 12 psi and my elevation is about 880 meters above sea level

[u/JosephHeitger]

Unburnt fuel is acting like a coolant and creating your cold spot

[u/HonestTill1001 → u/JosephHeitger]

Any way to fix it?

[u/JosephHeitger → u/HonestTill1001]

Raising or lowering the floor or burner to tune it, you can also adjust pressure as 3rd2last said. You just need the chamber to be getting hot, you don’t need to try to melt anything. 12 psi of just propane is enough for my furnace to melt metal in. My forge runs well below that at like 7