That's cool, but you probably represent 0.3% of wood burners. Most people do not work at home. People with normal schedules would find an 18 hour burn cycle to be basically impossible. If you're going to put wood in the stove more than once a day, it's much easier to do when you're actually home and awake.
Edit: What you crave and what some other very vocal folks on here seem to think is the most important thing with a wood stove simply does not match how the vast majority of users will use their stove. I absolutely could not manage an 18 hour burn cycle and can't imagine how anyone with a nornal schedule could. So, maybe burning forever at a really low output just doesn't work for me, and probably wouldn't work for most people. Maybe, just maybe, this is not realistically the most important thing to most burners. Something to consider...