I have my parents dutchwest 2461 and i believed I replaced all the gaskets in it. I replaced the interam,the doors,, and the top and the part going to chimney pipe. I ran the stove for a month or so and the catalytic combuster just wasn't doing what it was supposed to so I took it apart again. I realized I didn't replace the damper gasket and it was literal dust so now I replace that but the interam gasket was crumbled as well when I just replaced it. Did I put it on wrong or another reason it did this