Earlier today, I asked the guys about the best way to remove the paint that's on the upper portion of the rocket stove.
The general consensus was just to run a hot fire to start to burn or bubble it, then scrape and sand the rest later.
I ran a fire in the stove tonight, with the lid on, spaced out by some angle iron to let the air through.
Think this is too hot?
That is all from natural convection - no bellows, no fans, no blowing air in.
This thing is about half a step from being a forge!
I can see why they are often made from concrete!