We certainly agree on the name. Failure would be an fair description on that. I guess I'm thinking mostly about days where the highs and lows will vary by 15, 20 degrees or more. This is very common here in the fall and less so in the spring. I've already had 4 or 5 fires this fall all started in the evening. I haven't had any need for additional fires during the day. My fires aren't moderate, they are very low burns going for 8 hours or so on 3 or 4 small splits. So I'm thinking, if I wanted to get a 24 hour burn in a Princess, wouldn't I need at least twice as much wood? I guess the fire starting the next evening would be a bit easier with coals, but would that be worth using double the wood? I guess climate plays a huge factor here. If it was in the 40s and cloudy all day for long periods of time (e.g. PNW). I'd love some 30 hour burns. It just seems like we might get that weather for a week and half a year. The rest of the time, I feel like I'd either be not filling the stove full because I wouldn't want to burn wood I don't need to (fall and spring), or not be getting those crazy burn times because I need some substantial heat (winter).