Are those fans common? We have one, too. It's working fine (albeit noisily), but I've actually been thinking about taking it out. We had somebody come out the clean the dryer vent shortly after we moved in, and they mentioned those fans not being up to code. My cursory research on the topic seems to confirm that, and the consensus appears to be that they cause more accumulation/fire risk than they prevent.
4/21/16 at 11:24am