Hi all...if my insert says it has a 10hr burn time, what does that actually mean? Does it mean I will have an active flame or just heat for that long?? I've not "packed" the box full yet but my nightly loads are getting bigger as I become more comfortable with the stove. I'll wake in the morning to a bed of coals and my blower still blowing nice, warm air. I'm a little confused to what "burn time" actually means. Thanks for your input!