Actually ash. Cleaned some of the clinkers and ash that were congregating on the front of my burn pot, compliments of some NEWP's. Fire was low, room and home well heated and toasty. Took dog out and low behold, there it was, brown ash in about three foot circle on the newly fallen pristine snow. I have a direct vent pointing downward at an angle. Must have blown out when I closed the door on the stove. Other than that, there has at least been no black soot. This Harman P68 burns clean. Check it out all the time outside and have yet to any soot. Even when it lights off, it only blows some white smoke. Can't complain, yet. Although the dog may not like the competition with coloring the snow.
