Wow!!......what a brilliant video. Yet another original way of creating a form for building the dome.
Love your workmanship in building the oven and I adore the finished article. Thanks for sharing. You can also post that vid in the Pompeii oven board if you like. I never tire of seeing a Pompeii build.
I've used them clay perferated/air gap blocks in France and Germany and I've been trying to find a supplier of them in S.Wales to use on a little project.....no luck so far. Not sure how to describe them to UK suppliers. In France they were "Poroton" blocks and in Germany they were "Siegle Stein" (I think)....got any links to suppliers?