I have a Seton w130 boiler with a 40 gallon water storage. I bought it last fall from Fred and this is my second winter with it. I have a huge build up of ash. Approx every 2 weeks I have to let it go out to remove the ashes because they are higher than the air intake. And that's with me pulling the ashes away from the inlets every time I load wood. I have a metal insert in a brick chimney but its not insulated. I also do not have a draft inducer. I was told by Fred last year that it was probably because I was using split wood since I had already cut my wood for my old wood furnace. This year tho I have unsplit logs and I'm still having the same problem. I hope someone can help as its a pain to have to keep letting the water temp drop so I can get in there to move the ashes.