Ashful
Minister of Fire
At 24 hour settings the results can vary day to day, as small factors leverage into big changes over that time scale, but I usually have enough left in the stove that I burn it on high a half hour when I get home and before loading, to burn down what’s left. Then occasionally I come home to nothing but ash and a warm stove, and wonder what happened, possibly a wood fiber in the gasket, a slightly less dense batch of wood, or my knob setting was off 1 degree. Note that the difference between my 12 hour and 24 hour settings is maybe less than one hour on the o’clock face.Jacub said on a "low burn," but we don't know how low that is compared to your burns, how much draft he's got etc. Granted, you must be running the 24-hr stove pretty low..unless you are milking the coal bed a long time and the actual load burn has a decent amount of air being pulled through.