Nice to hear that the small forge I am planning to build is sufficient in size. So a small forge goes a long way heat treating a knife. Thanks Doug. I will make that pass through port for sure!
I might give the perlite-aluminium oxide lining a go
Has anyone tried it? I can get the ingredients dirt cheap. I think I am going to try it.
Or maybe plaster with sand? I do even have the ingredients at home.