Hello. This is a gas fireplace unit set within the original masonry firebox. It is from Regency, model P33S. As with any gas appliance and fireplace, coordinate with your specific site conditions and check with local authorities. Thank you for the question and your interest in the project.

But, from where did the gray ledge stone come.

Looks similar to Realstone in Charcoal

You can find it at ErthCOVERINGS. www.erthcoverings.com. This looks like 18F Springwood Black 3D

Looks just like Charcoal Shadowstone by Realstone Systems. Beautiful house!

fantastic idea

What is the actual answer to the question ... your answer?

Hello, and thank you for your interest in our work. It seems we've answered this question several times over the years. The fact is, we don't have a manufacturer or product to share. We carefully selected this stone at the time this project was designed 9 or so years ago. It was from a local supplier, and the criteria we used included color, texture, and perhaps most important, joint layout (avoiding straight cut joint lines in an otherwise random layup pattern). We'd encourage anyone taking on a project like this to review the products they are using, compare with your overall palette, and pay strict attention to details like the joint configuration. Work with a local architect, designer, and/or supplier. Thank you again.