Indeed it's been through atleast 30 or so burns and simply left outside in all weather not under any cover etc. Its rusting a bit but it's holding up really nicely.
Discussion
How wide is your cutout section? And are there any major cons that you’ve ran into?
I cut it the same as the Aussie who came up with the idea. Which I found thanks to Jack Spirko's biochar resource page which I would also recommend:
No cons as far as I am concerned only benefits in regard to tilting the angle of the barrel allows more oxidation and more heat(the more extreme the tilt the more it acts like a chimney)for burning wetter wood... obviously there is a trade off you get less char but when you have a lot of material to burn it's worth it.
If you do have more wet material to burn you still need dry to get the heat up. Also stacking the wet wood upright can help as it evaporates the sap outside the barrel.
Post some pics when you get it done Ryan 👍