Psilan: Careful with that cardboard box. Hope it doesn't stay there. It'll spontaneously combust .
Lol it was a test to see if you were paying attention. But no, I just park the box there to load the kindling and then move it as it heats up. In this case I got side tracked by my fancy movie making session, but am happy to report I didn't burn the house down.
We have ours corner mounted like yours. The walls get surprisingly hot.
If you are looking for a matching wood box, we bought this tool box (but maybe not this size, I can't remember). It works really well: https://www.topmaq.co.nz/shop/automotive/job-site-tool-box-1200-x-720-x-610mm/