Hi All, Last season (around February) my stove started making a noise (in the middle of the night of course) that sounded like someone sharpening an ice skate (that's all I can think of). So, when I did the annual cleaning last month and took off the combustion blower, I found a couple of pieces of loose metal. One looked like a 5 inch needle shape and the other was about the size of a stick of gum (very thin). Haven't heard that noise at all this season after removing the loose pieces. Could it have been some type of loose sauldering rubbing on the combustion blower blades? Mike if you read this please chime in. Thanks