inside house and burning. i saw a thread here about this but it is closed, that is how i found this site. i have had a basic box wood stove, no grate just firebrick for 10 years and just installed my king stove two months ago. the previous stove only burned about 2 hours so i had to get up all night feeding it. my king stove burns wood and coal but i have just been burning aspen i cut/split over a year ago so it is dry and in small hunks for the smaller stove. i have single wall from stove to about 10" below ceiling, then into triple wall through attic to about a foot above roof, then into single wall again with a simple cap. draft is pretty good, i just cleaned it and it wasn't that bad, mostly dry black flakes. creosote is running down the single wall inside house, then burning... i have never seen this before. i now have a big stove burning slowly instead of a small stove burning fast. i have been using dry aspen so where is the creosote coming from? i have been mixing in some larger pine i split for this stove, bigger pieces. i scraped off the creosote so not pics. it oozes down, bubbles, dries and burns or hardens when the stove cools. as warm as it has been, the stove is just idling most of the time which i don't like but this stove will heat 3k sq. ft. and my house is just 800.