Wise Guy,...I did have an issue last Sunday when we were having high winds all day, I couldn't get it to burn higher than 300*. It was back to normal the next day after the winds had diminished, did you have the same issue by chance?
D8Chumley, I can't remember how you have your thermometer situated. I have mine placed on the backside of the stove pipe about 6 inches above the top of the stove. I have never had the stove so hot that that thermometer read above 400* even on that first firing when I was trying to cure the paint. I think at that time I got the stove up to 400*, but no further. When the fire seems to be rolling along, the thermometer consistently reads just above the 300* mark. On those windy days a few days ago, the gauge didn't go above 250*. Today and yesterday, I had no trouble getting that dining room thermometer up to 76* and again the thermometer was reading just above the 300* mark. In fact, today, I have tried not to keep a roaring fire, and the thermometer throughout the day has consistently been in the 73-75 degree range. It is currently 74. I plan to stoke the fire for the night, damp it down, and then I expect to find a thick bed of hot coals around 7 tomorrow morning.
But keep this in mind. The thermometer reading is likely to go up once I start burning that seasoned northern red oak I have. Remember, I am burning seasoned hackberry, and the BTU output of hackberry is less than northern red oak, and probably less than what your maple, cherry, poplar, black walnut mix is putting out too. Nonetheless, I saw a noticeable decrease in the heat output of the Manchey when the temps fell into the 20s and the wind was gusting up to 40mph sending the windchill temps into the low teens. The real problem here isn't the Manchey, it's the lack of insulation in the drafty old farmhouse.