Hi I'm brand new here but have been reading all the comments on the 5510. You people are amazing---was having the standard problems ie--full pot ,unburned pellets, dirty door, etc etc. Well after reading this forum and seeing I was not alone, and only lasting 30 hours till pot filled and overflowed causing excess pellets to catch fire I stoped the stove and cleaned it out well. Then I followed the advice on this forum---sealed the bottom ash doors--set heat on 2, exhaust on 3, blower on auto- and as I type it is burning so clean and hot I can not believe it is the same stove. I am so amped up that I will be installing a thermostat this weekend( also thanks to this forums instructions) . Oh by the way ---I beat all pricing on my purchase. Bought it at Tractor supply and was told it was last years model (mfg date 6-04-10) new not used still warrantied Paid $649.99 Dam near blew my socks off--------- Using lignetics pellets @ $215.00/ton Once again thank you all for your advice. God Bless Joe