Made a firepit from an old oildrum for an autumn barbeque party. I drilled a lot of holes in the drum to feed the fire with fresh oxygen, and reduce smoke. Worked quite well. Temperature at the bottom of the barrel was around 630°C and made the metal turn orange.
https://blossom.primal.net/aa3cef4914dfb70348b956eceed83a8abdefa58cd86a0fa8bbc2323d6e0032de.mp4