[header] How to build and operate a fullly automated ceramic pyrolisy stove for indoors [title] Build a pipe out of 3 mm thick iron or 10 mm thick ceramic. [step] The interior diameter should be 100 mm or more and the length should be 200 mm with a bottom. Don't forget to put another piece of pipe beneath the bottom and cut a fuel chops entry in the bottom section, crenelating the top accordingly. 
The pipe should be at least twice as tall as wide. [title] Build the conic lid to fit over the top.