..24 (?) cylinders.

Definitely NQM, but my links to Höhr-Grenzhausen couldn’t be described as tenuous.

This is the “Kannofen”, a cross-fired salt glaze kiln that lay dormant for 50 years before phoenixing back into life in 2004 and becoming the lead actor in the annual “Höhr-Grenzhausen brennt” ceramics event.
(Play on words: either “on fire” or – third-person singular simple present – “fires”)

Then in go the 250kg of salt that vapourise and create a glaze as exquisite as this.