Very new to metal working so please guide me if this sounds stupid or I sound like I have no clue what I'm talking about (this is the case, this is all very very foreign to me)
I welded a metal box 9x12x15
Tomorrow when I get all the lining stuff I will begin the following.
two one inch layers of inswool
coat with Instuff Ceramic-Fiber Rigidizer
add a layer of Satanite Refractory Mortar
coat with ITC-100 Refractory Coating
then a layer of bubble alumina