Venison

one simple possibility for that forge, if you decide not to build your own, would be to stack up fire bricks (check your local brickyard or hardware store) around the sides to help keep some of the heat in. you can change them around depending on size of work etc. just make sure you leave enough exhaust area to prevent back-pressure. if you want to get fancy paint the hot faces of the bricks with itc100 or plistix best price i found for itc 100 is on ebay.

not fully clear on your question, but hope these help: http://images.tribe.net/tribe/upload/photo/c63/38e/c6338e12-10fc-48b2-a48b-4b823690f20b http://ronreil.abana.org/design1.shtml

working on designing the fuel supply for a three burner gas forge. burners most likely will be 1/8"pipe x .035" orifice. i know that pressure and size and temp of tank are factors, but wondering if i need 3/8" supply side up to a cross fitting (reducing to three 1/8" outlets) or would 1/4" be big enough?