i have been running a woodstove for 2 years now and never before have i had the problem i am having this year. The cresote is building up too the point of it being flaky on my pipes. One of my family members out of good hearted intentions put together a pipe leading into the chimney a damper and told me too keep the fire burning but only too make sure that there is a blue flame no hotter. This kind of fast and flaky build up only happened after i installed the pipe w/ the damper and started to burn the wood as i was instructed. Also on my door too the part where you dump ashes out at i am getting this smooth build up on the door. Also i was instructed too only leave the ash door barely open. Here is the page too the closest model that i could find http://www.tractorsupply.com/wood-heaters/united-states-stove-hot-blast-warm-air-furnace-2-500-sq-ft--5095270?zoneMarketInfo=2-16&reqUrl=%2Fwood-heaters%2Funited-states-stove-hot-blast-warm-air-furnace-2-500-sq-ft--5095270&langId=-1&storeId=10551&storeCity=city%2C+state&catalogId=10001&storeZip=26726&ddkey=http:LocationBasedPricingCmd. Please someone help me.