So... we have burned 1 ton since 10/15 - and I decided to do a good cleaning over this weekend. Never mind that trying to access our stove to say mildly very tight quarters since it's kitty corner and i have to lay on the floor to pull the back... anyways - I pulled the back to find the exhaust motor fan and looking for the 3 thumb bolts I was stopped in my tracks --- I found the 2 - i.e. 1 at 10 and 2nd at about 1, but the 3rd - no thumb bolt - what I saw was a nut with a long extention and a bolt head - see pic - am I supposed to take this as a thumb bolt? pic in the manual just showed an arrow. I was reluctant to loosen it so I didn't. Everything else looked really clean - found the fines box and that had some dust and about a palm full for 1/4" pellets... I will say however bad design - when you open the fines box - it falls on the intake fan below it --- next time i will cover that with a small rag something so mess is less. Also still having a issue with the fly as not getting into the pan and accumulated more toward the left of the stove than the right. Anyone else have an issue with this? It was just as deep at the ash in the pan. Thanks, all....