FYI, I did line my firebox with firebricks I got from Northern Tool. They are regular 4-1/2"x9" but only 1-1/4 thick used for wood stoves. Box of 6 is about $13. They are easy to cut to size & shape with a diamond wheel on my small Makita grinder - they work great.
Originally Posted by smokeinthenoke
It is not insulated. I thought about putting some firebrick in the bottom, but I'm going to wait and see if it is necessary.
The firebox wheels come off when it is in use and it has steel feet it will sit down on.