[TheForge] converting to natural gas

[CGRAF]

12psi???

Mike Graf


Kevin Gallagher wrote:
> I have been running a propane forge based on Ron Reil's sidearm burner for several years now and it does a great job.  However, I just moved into a new shop which has a natural gas line in it.  Switching from bottle propane to shop gas would be very convenient but I have some questions and concerns.  I usually run the burners on propane at 5psi, the natural gas at the shop is 12psi.  I know natural gas burns cooler than propane but given the increase in psi, do I need to increase the orifice in the burner?  (Currently it is a .035 mig tip.)  Most importantly, will a naturally aspirated burner ever get hot enough on natural gas at 12psi to forge weld?  If so, how do I need to modify my burners?  Thanks 
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