I've been working to rid myself of my mistake of buying too many Michigan wood pellets in 2011. The Fahrenheit has been eating them for 2 weeks. I did nothing but fill the hopper. The flame started looking lazy this morning so I shut it down. I cleaned it two weeks ago today. Enjoy the pictures of the amount of ash produced by the Michigan pellets. I'm figuring this is about 12-14 bags worth as I've been burning around 1.5 to 2 bags a day. First pic is the ash pan. Second pic is what was left after pulling out the ash pan. Good news is I am almost out of them.