I'll be rebuilding/modifying my naturally aspirated Diamondback forge as well as building 1 blown vertical forge and 2 horizontal forges. Materials on hand for the newly constructed forges; #55 Kast-o-lite 30 plus #5 pounds of Bubble Alumina for the forge floor 1 pint of ITC-100 2 yards of 2" SuperWool Refractory remnants, canibalized Firebrick and Kaowool Scraps, bentonite clay, and other materials that work their way into the equation... I'll be using this as a blower. 120 CFM might be the high end of "needs", but I plan on diverting some of the excess towards the gate, as I've heard this saves you from singed hair. http://www.amazon.com/BR-2C01A-120-CFM-Outdoor-Inflatable-0-8-Amp/dp/B00CMQXV3S The blown forge will be very similar to the Don Fogg forge I've seen via these subforums... Stay tuned.