Day two... as you can see the foundation for the raised hearth has been built.  Dana has also started on the firebox floor.  The interior of the firebox is being constructed in red firebrick also referred to as fire clay brick.  These brick are used for firebox construction to meet todays standards and codes.  They are meant to withstand the effects of long term fireplace usage.  For photos of day one  http://www.dmstorrschimney.com/our-soot-stories/fireplace-firebox-construction-mansfield-day-1-complete- More photos to come so please check back!