I would like to add that if I'm home during the day I tend to use more wood than I really should. By that I mean that i end up putting wood in the stove when in fact it really just needs the coals stirred up and some air given to it to burn them down. At night I load it between 9 and 10 and it burns fine until 5-6 am so roughly 8-9 hrs and the house will be above 72 most days. If I'm off to work I load it up before I leave at 6:30-7 and have a nice bed of coals when I get home at 4 or so, again, another 8-9 hrs and a warm home. If I'm home all day I put wood in at 5-6 am, then again at noon, then maybe at 5 then at bedtime, it's a very hard habit to get out of, I've been trying for two years...LOL