So I was on FB market place when this came up.. Its the last piece of the puzzle for the metal working school. I have 3 smallish gas powered furnaces for non ferrous but want to get into ferrous as well. The idea here is to modify it for cast iron. I know it will need a lid. I've changed the arrangment of the burner unit, raised to blower off the ground and eliminated 2 extra bends in the air pipe. I had forgotten a lot over the years since I was involved in study for such things some 40 years ago. This has substaintial internal volume (to much).. I know it will need a lid to keep heat in. The burner is a Hauck 781 and the plan is to run used oil.. Today was the first firing on #2 fuel oil and it worked a treat. I am including the google photo album for this furnace and build. I struggle with sizing photos to upload. https://photos.app.goo.gl/KDPZ1WnZCpHR3Vkm7
