So here it is 345 am and I'm trying to figure out exactly what went on. My daughter has been home sick for the last three days, coughing like mad. I was woke up by one of her coughing fits, went to get her some water. As I came down stairs I checked the thermostat(70*F). Walked into the kitchen to get her a glass of water. Looked at the temp on the boiler 161*F, thought oh well it must just have fired back up. Went back up stairs and heard this sound. WTH!! Came running back down to find the Oil Boiler hammering away and the the water temp at 144*F. I opened up the fire box to find all of the wood has been turned to charcoal. I rustled up the coals and shut the door, and instant gasification. The temp on the WB was increasing by 1*F per minute. WTH, ok now I'm fully awake and wondering what is going on. The temp hits 165*, it shuts off the OB, temps drop to 155* and it continues to gasify, while slowly bring up the temps. My question is this, why did it completely turn the load of wood to charcoal? Did I put to much fuel in there for what the heat load was to be? Presently it is -5*F with 30 mph NW winds, I filled the boiler at 9 pm as we are all fighting this bug and I was hoping to get the first decent nights sleep in a week, and not have to worry if I slept till 8 or 830. On the good side I now know that my OB will indeed come on if needed Here is the scary part .... Your thoughts????