I'm not having much success with the overnight burn. I'll load up before bed but when I get up in the morning the stove is cold and if I have any coals they're small and useless. I'm running a Lopi Patriot with a 1.6 cf wood box. The advertised burn time is up to 8 hours but hell if I can get it to last more than 3-4. I'm also wondering if there's really a point to burning overnight. It seems pretty wasteful since you're burning so low, I wonder if it wouldn't be better just do your last reload in the early evening and not worry about an overnight burn. I just feel like I'm wasting wood since the stove is cold in the morning anyway. FYI, when I DO attempt an overnight burn I go to bed with the house around 70 and get up with it around 60, when I DON'T try the overnight burn, I go to bed around 70 and get up around 55, granted our lowest outside temperature so far was 21 degrees, so that inside morning temperature might start to drop as winter sets in.