evildeadash Posted March 16, 2021 Share Posted March 16, 2021 So i built a pair of 3/4 sidearm burners for my propane tank forge. I calculate the volume to be around 460 cu in. I know two 3/4 is a bit over kill but two 1/2 burners was going to be under sized so I plan to turn down the pressure or turn down one burner once I get the forge hot. Anyway, I ran the forge a bit this weekend and the "dragons breath" seemed a little overwhelming. I pulled the burners out today and tuned them in a vice, then re-install and adjusted a little. The dragons breath still seems a bit much once the forge gets going. I'm attaching some pics of the forge running at 5 psi and 8 psi after just lighting it. Also a pic of both pressures when the forge is really going and what I think is a bit much dragons breath. Best I can tell it seems like the burners might be running a bit rich. I have a .025 mig tip installed in each. The forge is lined with two layers of 1" kaowool, kast-o-lite 30 over the kaowool, and layer of Plistix for efficiency. I shined up a piece of flat bar and put in forge to see how much it would scale. Once it got orange hot I pulled it and brushed it but no scale came off. Put it back in and pulled at orange hot again. Tapped a few times with hammer and got a little bit of scale to come off. This leads me to be believe that it might be too rich but I'm definitely not an expert. Any help you guys can offer would be much appreciated, thanks. Quote Link to comment Share on other sites More sharing options...
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