MotorSeven
Elite Member
It's hard to believe that a stove can run for 40 hours on a single load without dropping below the optimum burn temperature of around 250 degrees. I can leave my stove smoldering for a long time, but it's not good for the chimney, and it's not keeping my house warm in the mean time. A stove running at a given efficiency will extract a certain number of BTUs from a certain number of pounds of wood. I don't see how a long burn time is desirable, unless it is accompanied by a significant increase in efficiency, since it will just mean extracting the BTUs from the wood at a slower rate, resulting in a colder house.
EDIT TO ADD: I guess the one caveat would be that a stove should be able to be loaded in the evening before bed, and still have viable coals in it the next morning, so you're not building a fire from scratch every day. But that's something like a 12 hour burn time at most.
The King has a CAT and that is one way it gets longer burn time. Cat's burn all those particles in the gas and smoke that a conventional stove can't burn so you loose it up the flue. The Cat gets really hot when this occurs, so the stove gets hot too. I do agree that 250 degrees is not going to keep my house comfortably warm but it will take the edge off. You can push a King harder and keep the temps higher...but your burn time will suffer. All in all the BK King would be my number one choice if I was going to replace my Soapstone.....and someday I just might do that.