Hi Dan. I've only just come across your stove build. Looks fantastic. I fancy building something very similar. I followed the link to the Russian stove building site, not easy reading.
Please tell me: did your design incorporate a secondary air supply, and if so, is it pre-heatedl? Did you include the gaps or crevices that I read about?
Love your stove, hope mine is somewhere near as good. Regards from the UK, Dave.