I am running a King Ultra, loaded the stove with very large splits of hard wood. I have an inside temp of 72* (area that the stove is in) and 69* in the farthest bedroom. The outside temp is 10* the thermostat is on 2 1/4 and the fan speed is in the middle or medium, stove top temp is 500*. What are your settings and how long should this burn before a reload? Usually when stove-top temp drops to 350* the house temp begins to fall a couple degrees with this cold it will be noticeable quicker. I will then reload to bring the house back up to temp. I am heating just with the king.