I was at Lowes today with my
RMH shopping list. I see they carry one fire brick. I went to customer service and he pulled up the specs and it said
concrete material rated at 3000f. Is this correct from what i have read I assumed this was a specialty product to reach those temps or every one would just stop into lowes. Of
course the generic wording they have it may not actually be concrete or i dont under stand what fire brick is yet. I'm building the j tube
RMH FYI