Mega_Me - which model did you get? I got the US Stove "Magnolia" - I'm very happy with the performance, especially for $775. I won't be trying coal in mine, as the airflow is from the top, and that's not going to work with coal I don't think. But it kicks butt as a wood stove. 3-4hrs is what mine will burn too, although it will go a bit longer if I load it up with big pieces of ash or oak and stop it down real hard. Unfortunately, I've got a lot of poplar, which is only half the BTU per log. But what the heck, I've got loads of it, it's free, it splits easy, stacks nice, dries fast, and burns hot. So I try to save the good stuff for the night time loads!
I rigged up a thermostat to turn on the blower for my hot air system, and modified the duct work. So when the basement room the stove is in gets to about 78, it turns on the fan. It beats just turning on the override, because now if the fire goes low, it won't just blow cold air around.