I had a woodstove insert in my fireplace before the room became a listening room. After living with it like that for a year or so, last fall I had the woodstove moved to a more central location in the house, had a new hearth and flue built. I then re-installed the damper in the fireplace and filled the front opening with an Auralex Space Array diffusor panel. Not only does it sound better, but the new location of the stove heats the house quite nicely in the winter. The fireplace is still completely functional should we decide to sell or move the listening room.