I chose to go with a pre-assembled forge burner 'cause I wanted it to just work. After much reading, researching etc I chose the Z Burner and grabbed one of his connection kits and burner holders.
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Long Gas Forge

Making a propane gas forge for blacksmithing and bladesmithing. This forge is designed for working on blades and swords, complementing a previously made general-use forge. All forges utilize identical ...
About 10,000 Master Forge five-burner gas grills, made in China and imported by L G Sourcing of North Wilkesboro, N.C., because the hose on the gas tank can melt and rupture when the grill is lit.