I had a furnace installed that is a bit to large for the house. I did not realize this until after the fact and the installer did not tell me this ahead before installing it. It appears to work fine but the air flow in the existing vents makes noise. I am trying to sell my home and do not want to go the expense of another install so is there something that I can wrap them in to help muffle the sound. It is not terrible so I think that would be the answer. Also, will the furnace size be an issue for home inspector? Good grief, will it ever end?