I have an oven underway, currently to the vermiculite layer on the hearth. Looking forward to the interaction on this forum. What a great way to share information. I am a steamfitter and welder by trade so this brick and mortar thing is a bit challenging . I do have a problem listed in the "Newbie section" in that fireclay is not available in Green Bay, Orco set seems to be the thing of choice. Do I need an alternitive to set my floor on. This stuff is expensive.