By Barbara from MA on December 24, 2014
There is about 1 inch of flush area for the springs to be supported by on my fireplace. Will this still be OK install?
By eFireplaceStore on December 24, 2014
Answer:The smoke shelf does require a 1 inch minimum area to mount properly. As such, the shelf should work for your application.
By steve from Fancy Gap, VA on November 26, 2012
How do I determine if I need an 8/6/4 inch smoke guard?
By Collin C. - NFI Master Hearth Professional on November 27, 2012
Answer:The goal of the smoke guard would be to reduce your fireplace opening so that you can achieve a 10 to 1 ratio between your fireplace opening and your chimney flue. That is to say, 10 square inches of fireplace opening to 1 square inch of flue opening. Of course, you will need to measure your flue at the termination, as there is not a good way to take the measurement from the bottom of the fireplace, as the flue will be above the smoke shelf and is not accessible.
If taking the measurement is not possible, you may also use a piece of plywood to partially cover the opening while burning a fire. Start by allowing the plywood to only cover the top 4 inches of the opening, then slowly drop it down until the unit stops smoking. When it stops, take a measurement of how much plywood is covering the opening. The next largest smoke shelf would be the one needed.
By Kathy from NY on August 10, 2015
Is a flue still needed with this SmokeGuard 8 inch smoke rollout eliminator?
By eFireplaceStore on August 11, 2015
Answer:This smoke guard is designed to size down the opening of your fireplace in order to more closely match the ratio between the flue size and the fireplace opening size. The chimney must still be in good condition and venting properly.
By Dawn from South Lake Tahoe, CA on December 2, 2014
How can I determine how big of a smoke guard is needed to solve the smoke roll out issue?
By eFireplaceStore on December 3, 2014
Answer:The correct smoke guard to use will depend on which model will bring your fireplace opening to the ideal 10 to 1 ratio with the flue. For every 10 square inches of fireplace opening, you should have 1 square inch of flue opening. If you are unable to determine the dimensions of your flue tiles, another option is to take a piece of scrap plywood and hold it over the upper part of your fireplace opening when burning your next fire. You can slowly lower it down over the opening a couple of inches at a time until the smoke roll out stops. You can then measure how many inches it took to stop the issue and purchase the appropriate size guard.
By Anthony from MD on November 18, 2015
Can this SmokeGuard 8 inch smoke rollout eliminator in black be mounted when there are glass doors and a mesh hanging screen already installed?
By Will M. on November 18, 2015
Answer:This will depend on how the doors are installed. For a masonry fireplace installed with lintel clamps, the smoke guard may be installed just below the lintel clamps, as long as the clamps do not extend away from the top of the fireplace and create too large of a gap for the smoke guard to be effective.
By Pegeen Swiatek from WEbster, NY on December 20, 2011
How do I know what size smoke rollout eliminator to get?
By Collin C. - NFI Master Hearth Professional on December 21, 2011
Answer:Ideally, you want the ratio of your fireplace opening to flue size to be 10:1. In order to purchase the correct rollout eliminator, you would need to calculate the number of square inches of your opening, in comparison to your flue, then determine how many inches the opening needs to be reduced.
Another way of checking this would be to build a fire, then use a piece of noncombustible material to simulate a smoke guard. You would need to have something wide enough to span the entire front of the fireplace that you could gradually lower over the opening until the fireplace stops smoking. You would then need to purchase the smoke guard that is closest in size.
By Kent from Madison, GA on January 19, 2014
The opening of my fireplace is 48 1/2 inches. This says it will work for fireplaces up to 48 inches. I was wondering if there is any play in that at all to make this work on mine?
By Collin C. - NFI Master Hearth Professional on January 20, 2014
Answer:While the smoke shelf will still hold together at up to 50 inches in width, the metal overlap is such that the shelf will begin to sag when expanded beyond 48 inches. You may need to narrow the opening a bit at the top by adding a thin coating of parging mix.
By Steve from Queens, NY on March 19, 2015
My bay window glass door clamps onto the inside top portion of my fireplace which holds it in place. Would this restrict the installation of this smoke guard?
By eFireplaceStore on March 19, 2015
Answer:Not necessarily. The lintel clamps that hold your door assembly in place will prevent you from mounting the smoke guard against the lintel, however the guard can be installed just below the clamps without a problem, as it will still be effective in making the fireplace opening smaller.
By Chuck from Chicago, IL on January 20, 2014
I have a fireplace with a 25" wide firebox opening. I was told that the 3 piece smoke guard would work if I "removed the center section". Do you think this would work, or do you have any suggestions?
By Collin C. - NFI Master Hearth Professional on January 21, 2014
Answer:My apologies, but removing the center section would not be an option, as the center section is what holds the expandable sides in place. Each side telescopes into the center section. However, it would be possible to disassemble the smoke guard and cut the components with a band saw. This would narrow the width enough to work for your application.
By Rose from Commack, NY on October 25, 2015
How do you determine what size of SmokeGuard to install in a chimney?
By Will M. on October 26, 2015
Answer:There should be a 10:1 ratio of fireplace opening size to chimney flue.
By eFireplaceStore on October 26, 2015
Answer:The correct size smoke guard will be the size that most closely brings your fireplace to a 10:1 ratio, meaning 10 square inches of fireplace opening for every 1 square inch of flue opening. Unfortunately, it can be difficult to determine the size of the flue without measuring from the roof, so the next best option is to use a scrap of plywood to test the fireplace as its burning. Using a piece of wood at least 10 inches wide and as long as the fireplace, start a fire and let it burn in. Hold the piece of plywood at the top of the opening, first covering 4 inches, then 6, and then 8. However far you must drop the plywood down to make the opening smaller is how large of a smoke shelf should be purchased.
By Craig from Columbus, OH on December 22, 2014
Is there a formula for determining if I should buy a 6" or 8" smoke guard? A couple of years ago I purchased a 4" one and it helped some but I clearly need more help.
By eFireplaceStore on December 23, 2014
Answer:There is indeed a 10 to 1 ratio that should be maintained between the size of the fireplace opening and the size of the flue. In other words, you should have 10 square inches of fireplace opening to every 1 square inch of flue. Once you know the size of your flue tiles in the chimney, you can calculate the ratio between the opening and the tiles to determine which guard will get you to the 10 to 1 ratio needed.
By Jahna from MA on July 8, 2015
I have a metal smoke guard installed in my fireplace that looks just like this SmokeGuard 8 inch smoke rollout eliminator. I don't like the look of the black finish and I would like to tile over the front plane of the brick and the metal smoke guard. How do I adhere the tile to the metal? My fireplace is used very infrequently.
By Will M. on July 8, 2015
By Steve King from Charleston, WV on January 16, 2017
The opening of our fireplace is 54". Do you customize smoke guards for larger openings, and if so, what would be the cost of such? We are interested in this 8" eliminator in black.
By Brennan W. on January 17, 2017
Answer:Unfortunately, we do not offer custom smoke guards.