I sold our pellet stove as we didn't use it (previous owner purchased). After removing the stove, thimble, and pipe; I now have a hole in the siding which we can't replace to match. I was thinking of installing a new 'faux' thimble with a cap on the opening but can't figure out where to find a cap that encloses the thimble in the similar manner one might do on the end of a pipe. Please help!