Abstract: A portable gas forge. The forge is comprised of a housing having an insulated interior and an opening for insertion of the article to be heated such as a horseshoe or the like. The forge is resistant to blow-out by wind when used in the field and has a specially designed burner connected to the top of the housing. The burner is connected to a source of gas such as an LP gas cylinder. A gas orifice is connected to an enlarged burner pipe having a bell-shaped primary air inlet adjacent the gas orifice. A source of secondary air is located at the exterior burner pipe connection to the housing to obtain maximum flame concentration in the housing and inhibit back flaming.