Thanks Rich, good to know you like it. It was a very nice experience overall, the entire process. The clay felt real soothing and full of possibilities after I had battered unforgiving, sharp flint for a while. And playing around with fire is always just good, basic fun.
NeolithicMan. I just put the stuff in as in the pic, closed the oven and built a fire right at the entrance. I started small. As the oven got hot, it startet to suck in more air, the fire went hotter. I gently pushed the coals back into the chamber, but gently.
I tried the open fire before, with similar results as yours.