By Nelson from Fairfax VA on April 20, 2013
How do I install a 4" smoke guard with a glass door fireplace?
By Collin C. - NFI Master Hearth Professional on April 22, 2013
Answer:In most cases, there will be enough of a brick ledge behind the doors to allow the guard to be anchored. However, you will likely need to remove the door surround in order to mount the smoke guard. Removing the doors will allow access to either side of the surround and will provide the ability to anchor the shelf into position. You can then re-install the door assembly.
By Dave from Westhaven, CT on December 22, 2013
How do I know what size smoke guard I need? Should it be 4-6 or eight inch? Or, should I make the width smaller? Where do I start?
By Collin C. - NFI Master Hearth Professional on December 23, 2013
Answer:The size of the smokeguard that is needed will depend on the size of your fireplace opening and the size of the chimney flue. The fireplace opening and flue should have a 10 to 1 ratio to one another. Meaning, for every 10 square inches of fireplace opening, there should be 1 square inch of flue size. Based on that math, you should figure exactly how much the opening will be sized down using each guard.
By Cate from Charlotte, NC on September 18, 2013
How do I decide which width of smoke guard I need to purchase?
By Collin C. - NFI Master Hearth Professional on September 19, 2013
Answer:Ideally, your fireplace will have a 10 to 1 opening to flue ratio. That is to say, your fireplace flue will have 1 square inch of area to every 10 square inches of opening size. If you know the size of your flue, you can use that to determine how big your opening would need to be to get to that 10 to 1 ratio. You can then determine which size smoke shelf would size down your opening to get to that correct ratio.