First off I don't post normally just search,read and try to soak up information and ain't real good at this computer,but here is my question and it is about a US Stove hot blast furnace so I may be in the wrong forum area, anyhow I took the brush to my chimney today and got about two thirds of a coffee can of dry flaky sreosote this is after four weeks of shoulder burning and cutting the stove back at night trying to keep my shop and office warm 24 hours,seems like alot to me, I have been burning alot of birch,poplar,pine and all my punky stuff,it all checks below 20 percent with moisture meter,so is it my wood,my burning techniques, or a draft problem, the reason I ask this is it is a litle tricky to get a stove temp over 400-500 with temp guage on front exposed surface of the furnace and my flue temp generally stays 200-300,I only have 4.5 foot of single wall heavy guage welded seam black stove pipe then 6 foot of class A chimney total 10.5 foot without cap