I know. I must be missing something. I have a NC30. I dont use the ashpan. I shovel everything out into metal bucket. I think I will have to get a screen/strainer and shovel everything out, take it all outside and sift it outside then bring the bucket with the hot coals back in but that sounds like a pain. I just hate to throw 2 gallons of heat out in the ash pile.
The ash pans are a joke, not sure what the heck they are thinking and why all the stoves have them. Maybe someone who knows some tricks to using them will show up and help me/us out, but I've never heard anyone using them.
I used to have a problem with over coaling(especially when it's very cold as the newer stoves burn all the smoke particulate and volatile gases before burning the wood itself. Then you have a large pile of coals that have lots of heat potential left in them, but will not burn hot enough to keep the house warm when it's very cold out
. When I first started burning I had more of a problem with this because my wood was not real dry, and I didn't know how to deal with it, so I also wanted to pull out those coals/be able to separate them so as not to waste the BTU's. In my stove it has air inlets on the front and will burn the wood there first so when the stove starts to cool down(I'm talking like 400 from 450-550F) I will remove as much of the smaller coals and ash, as muddstopper was saying. Then I will pull the larger coals to the front of the stove in a large pile across the front of the stove, then I will open the draft control all the way (it looks like I'm burning real coal as the flames will many times be blue), this allows the coals to burn down and puts out a lot of heat in the front of the stove, even though the temperature of the stove is only around 400. If I want more heat then I will place a short split on top of the pile of coals(loaded east west) and also leave the drafted wide open, then the stove will put out more heat and will get up to more like 450. Sometimes I do this multiple times to reduce the excess coals as you are adding more coals by placing the split on top of the pile. Obviously this does not work well when you need to load and leave the house, then I just shovel them out.
Something else I do is to shovel out the large coals into my metal can(with a bit of fine ash on the bottom as an insulator, keeps the bottom cooler) and bring the can into the master bath(gloves are a must have for this operation) which is the farthest point away from the stove in our house. I set a spare wheel/ tire in the garden tub and then set the can inside the wheel. To the safety police; I've let the air out of the tire in case the heat to the rim gets into the tire and causes it to expand the air/increase pressure and blow up the tire. Even so it's more of a precautionary measure because I've checked the temp of the rim at the tire as well as the pressure for an increase and never saw anything I had concerns with. I've also placed my CO detector in there and had no indication of any problems. My biggest concern is that someone will walk/run into me while I'm carrying the hot coals to the back. Doing this will raise the temps in that back area substantially, usually 3-5 degrees depending in the outside temps and the amount of coals.
I can take some pictures if anyone is unclear of my explanation of these things and would like.
Hope this helps.