My wife loves the coal stove, but is not too crazy about the coal dust we used to get when I would pour the rice coal into the hopper. I have treated bulk coal but I still get some coal dust, especially if the coal is over a year old. The way I solved this. I always bring two 5 gallon pails of rice coal in each morning, after I dump the pails of coal in the hopper that I brought in the previous morning. When I bring in the pails of coal, I have a watering can, the type you would use for watering your garden or flowers. I sprinkle a bit of water on top of each pail. Enough to wet the coal all the way to the bottom. The next morning when I dump the coal in, I get no dust, and the wet coal seems to burn just fine. Each pail filled about 4/5 of the way to the top, weighs about 30 lbs. I very seldom use more then two pails full of coal in 1 day. A few years ago when I used bagged coal, I would dump the coal into the pails outside, then bring them in and follow the same procedure. Anyone else have other ways to keep the coal dust down?