[TheForge] converting to natural gas

[Kevin Gallagher]

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 

 

Kevin 

www.muddyanvil.com

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