firebrickforge from Zoeller Forge - October 29, 2008: "The forge above is basically the same as the first firebrick forge that I built except this one has a layer of 3/4" 3000°F 42% Alumina Firebricks on the bottom. This forge has a more durable floor that can also be used for forge welding. I put the two interior floor bricks together using Derby 3000 °F Mortar. This will keep the flux from running down in between the bricks."
