Figured I'd post in this thread rather than start a new one - I got a 18-19 hour solid burn out of the Chubby last night/today.
I last tended the stove around 4ish yesterday - and didn't touch it till I got home around 11am today. I figured I'd come home to a cold stove but the stove was still hovering very near 300F.
I opened MPD and air intake - poked from below and let it sit for about 10 minutes. Temps came up quickly and then I shook. The pic below shows what the bed looked like just after shaking.
I added several scoops of nut and closed the mpd down 80% and air down to less than 1/8th inch open.
Normally my routine has me shaking twice to three times a day. Last night I didn't touch it at all...and go figure - not touching it allowed it to burn for the longest burn time I've experienced.
Not to steal a phrase but 'chubby coal stove doing me well too'.