Ernest_U

after reading through this section for a good two hours or so, I have settled on a few things that would best help me build my forge. 1. Using a helium or freon tank for the optimum size. 2. 2 rigidized 1" layers of kaowool or similar substance for the first layer, followed by a 1/4"? thick layer of castable refractory, then a 1/4"? thick layer of ITC. Some things I'm still wondering about is what size burner to use in this setup, and whether I should try to make it able to stand up to put a crucible into for casting, or if I should just build a foundry separate from my forge. Also, How do you decide how big the vent hole in the door should be?

I'm brand new here, So I'll jump right in. based on what you guys have said, The spiral angle seems better. I plan on making a 2- in -1 forge/foundry setup, so angled burners seem ideal for both.