I recently moved into a house that has a fireplace in the basement. On the fireplace is an inspectors note that says 'do not use until vent is repaired'. I have no experience with fireplaces and am wondering 1) where is the vent and can I repair/replace it 2)if I can't do it how much will this cost? Sorry for the vague description of my problem but I am more than willing to provide further details if anyone can help. Thanks in advance.