Hello all, This morning while I was stretching getting ready for my daily 4 mile run, I heard my oil furnace kick on. But, it lasted only for about a minute. I was not worried due to the fact that I still use the oil burner to keep my domestic hot water hot. But, about 15 minutes later, it kicked on again. This is unusual I said. So, instead of going for the run, I put my old clothes on, went outside (dang it was cold) and noticed the water temp was lower than it should have been for that time of day (night?). I opened the door and saw that I had stacked the firewood too tight and it wouldn't let the air flow correctly to keep it going. So, on goes the leather gloves, out comes the unburned wood. Thankfully, I caught it early and there were red coal, not many but enough to get it rekindled again. I then put the unburned stuff on top of the coal, loosely, and let the furnace do its thing. I think it was maybe 20 to 25 minutes later that the water temp was up to 185 and providing heat to the house again. This furnace is new to me and there is definitely a learning curve to it. It operates so different the usual indoor woodstove. But, it is just awesome to get home from work or get up in the morning to a warm house and not hear the oil furnace running. So, the moral of this story is not to stack the firewood so tight as to prevent the OWB from operating properly.