I have a question too:
The oven is now isolated with a few layers of ceramic blanket. I'm planning on stuffing all the cavities up to where the enclosure is now with rockwool. On top of that I'm making a dome in a leca/cement mixture (sort of the way I made the dome for the actual oven with sand). This will than serve as insulation for the flue and as a mould to finish the enclosure with bricks.
Question: I think I've read rockwool and the ceramic blanket will lose insulating capabilities when they are compressed. So I'm wondering if I should close of the rockwool part with a metal sheet (expensive, even expanded metal) and put the leca on top of that, OR am I safe, seeing I've used so many layers of ceramic/rockwool that the commpression won't make much difference.
Sort of off topic, but since last weekend was no pizza weekend I stayed in my workshop and made this: