By Jim from Durand, MI on October 7, 2013
For a multi-cap chimney, would I need to measure the length, width, and height of flues?
By Collin C. - NFI Master Hearth Professional on October 8, 2013
Answer:Precisely. The outside dimensions of the flues, as well as their projection above the chimney wash would need to be known. Any offset from one flue to the other will also need to be noted.
By Ray from OK on July 27, 2013
How can I keep water from going down my chimney? What kind of chimney cap should I use?
By Collin C. - NFI Master Hearth Professional on July 29, 2013
Answer:Generally, the best way to stop this from happening is to use a chimney cap that is oversized to the chimney opening.
By Bob from NY on July 27, 2013
Would getting a cap with damper help with my very old stone fireplace with a rusted out damper? The draw up is not good and smoke rolls back into the room.
By Collin C. - NFI Master Hearth Professional on July 29, 2013
Answer:Likely not. A poorly drafting fireplace is usually caused by one of the following problems:
1. Chimney flue is poorly insulated (cold hearth syndrome).
2. Chimney flue is too large for the opening.
3. Chimney is too short.
4. Obstruction near the chimney is interfering with drafting.
5. Prevailing wind is overpowering natural draft.
By Jean from Lynchburg, VA on October 31, 2014
We need to replace an inside mount chimney cap. The inside dimensions of the flue are 10 3/4" X 15". The chimney flue is flush with the top of the chimney and our current cap is held in place by a flange that goes around the base of the cap. What would you suggest?
By eFireplaceStore on November 3, 2014
By David from New Jersey on February 18, 2014
What cap do you recommend for 5" Asbestos (transient) B vent exhaust pipe?
By Collin C. - NFI Master Hearth Professional on February 18, 2014
By Ann Bekaert from Holly, MI on December 4, 2012
Is there such a thing as a cap extension? Our two crocks are jammed together. We have a cap over them but need it raised higher.
By Collin C. - NFI Master Hearth Professional on December 4, 2012
By Sandy from Pebble Beach, CA on April 2, 2013
I need to replace the chimney cap on my Majestic fireplace. I'm looking for an S series cap. Do you have something I can use?
By Tyler M. - NFI Certified Specialist on April 3, 2013
By Frank from Sterling Heights, MI on October 16, 2013
My house was built in 1967. I have a natural wood fireplace with a single flue. We want to convert to natural gas with vented logs. We want to preserve as much heat as possible and not have it all go up the chimney. Can you give us some advice on how to do this?
By Collin C. - NFI Master Hearth Professional on October 16, 2013
Answer:Vented logs by nature give a great deal of their heat up to the chimney. The best way to preserve some heat is to regulate the damper assembly in the fireplace. If the cast iron damper is intact, it can be closed down far enough that the log set damper clamp is the only thing keeping it propped open. This will help to keep hot gases in the smoke chamber longer, increasing heat output.
By Maryann from Oxford, MI on May 9, 2014
I have a home with prefab fireplace double-stacked, that is, both fireplaces use the same chimney. The model no of both units is mrc-42. The chimney cap needs to be replaced, per the home inspection report. What model of chimney cap should I purchase?
By Collin C. - NFI Master Hearth Professional on May 9, 2014
These particular units used one of 3 chimney systems manufactured by Majestic. The best way to tell which you have is to measure both the inner diameter and outer diameter of the chimney piping. Please advise when you can.
In regards to your other inquires, I will need to check to see if the original brick panels can still be procured for this model.
The original doors have been discontinued, but they can be replaced with the Majestic Standard Bi-Fold Black Glass Fireplace Doors with Black Track
, along with an adaptor kit to compensate for a small difference in size.
By Jerry from Boston on November 27, 2012
I need a low cost 16 x 36 chimney cap. Can you please help me to find one?
By Tyler M. - Fireplace Specialist on November 27, 2012
By Pete from MN on April 21, 2014
I have a round clay tile flue(natural gas furnace) with an 8" inside diameter and an outside diameter of about 9.75 inches. Which cap(s) would work best for me?
By Collin C. - NFI Master Hearth Professional on April 22, 2014
By Shirley from Gouldbusk, TX on April 6, 2013
We have a wood stove and rain comes down the chimney pipe when it rains at an angle. There's an 8 inch pipe inside of the larger pipe and I think the rain is coming in the space between the two pipes. Is there some sort of a cover or flange that will cover this gap? The outside pipe is approximately 44.5 inches in circumference, with a 14" diameter.
By Collin C. - NFI Master Hearth Professional on April 8, 2013
By Jim from Greenwich, CT on July 14, 2013
I get lousy draw in my fireplace when the cap is on. What is wrong?
By Collin C. - NFI Master Hearth Professional on July 15, 2013
Answer:It is quite likely that the draft of your fireplace is weak to begin with and the cap is simply enough to stifle what little draft there is. There are a couple of things that could cause this. 1. The chimney cap screen height is too short, placing the top of the cap too close to your chimney termination and impeding draft. 2. The chimney is too short and the house itself is fighting the chimney for draft. This often is characterized by smoke rolling back into the room.
By Gary from Jackson, MO on January 8, 2014
I have a customer with a 2 flue chiminey with a wood burning stove in the basement and a wood burning fire place on the main level. The brick chimney is about 30 feet tall total with both 9 x 13 liners extending about 8 inches above the brick. When he burns a fire in the main level fireplace it pulls smoke into the house from the wood burning stove in the basement. should I extend one flue higher than the other? Neither of them have a cap. Would this also help?
By Collin C. - NFI Master Hearth Professional on January 9, 2014
Extending the flue by means of a flue stretcher cap or section of manufactured chimney would indeed be the way to go. It is recommended to have at least 18 inches of difference in height for any chimney flues that are 24 inches or closer to one another. This is usually enough to prevent the drawback problem. If you use a flue stretcher, such as the Gelco Stainless Steel 8 in. x 13 in. Base 2 Foot Flue Stretcher
, this will help to solve the issue. It is also recommended to cap the lower flue, as this will also help to disrupt the direct line of travel the smoke is taking from one flue to the other.
By Bill Petranszky from Eastlake, OH on October 23, 2012
I want to purchase and install a chimney cap but I currently have a round cap at the top of the chimney liner. This round cap does not cover the square chimney pipe. What should I do? By the way, my furnace no longer uses the chimney, just the hot water tank.
By Collin C. - NFI Master Hearth Professional on October 23, 2012
Answer:Do you happen to know how the liner is currently supported at the top of the chimney? If it uses a flat metal support plate, and the liner is clamped to the plate, you should be able to remove the current cap and storm collar, then cover the square clay flue tile with a larger cap.
However, if the liner is the type that attaches to your current cap, then pulls down on the top plate, you will need to support the liner using alternate means. It is possible to use HVAC strapping to hold the liner in position, then attach another cap.
By Tim from Cloquet, MN on March 22, 2013
When it rains, water seeps down and through the mortar between the blocks. Can I do anything to prevent this? Is getting a chimney cap my best option?
By Tyler M. - NFI Certified Specialist on March 22, 2013
By Stephen from Cumberland, MD on October 22, 2014
I need a single flue chimney cap with legs or brackets that is 17 inches by 17 inches. What options do you offer?
By eFireplaceStore on October 22, 2014
By Bob from Wilmington, DE on July 15, 2013
I have an air insulated class A chimney pipe that needs a new cap. The current one seems to allow water into the stove. How should I measure the size cap required? Is it the inside diameter of the current pipe?
By Tyler M. - NFI Certified Specialist on July 16, 2013
Answer:Yes, please measure the inside diameter of your pipe. Being able to identify the manufacturer/model information of the pipe will also be helpful, if you want a factory replacement.
By Heather from Gainesville, Georgia on January 14, 2013
We are looking for a "fireproof" product or material to place on top of our chimney cap to hopefully get rid of noise. We have a 2 story home with a fireplace containing gas logs on each floor. The second floor fireplace is in our master bedroom & unfortunately we have a hickory nut tree that drops nuts on top of our stainless chimney cap, thus making a lot of noise. Rain is also a noisy factor due to the cap being 12 feet away from our bedroom ceiling and our home being located on the highest elevation on the lake in our state, we see a lot of heavy storms/wind making a lot of noise. Do you know of any "fixes" or products available?
By Collin C. - NFI Master Hearth Professional on January 15, 2013
Answer:Unfortunately, I do not have an insulating material that can be applied to a chimney cap that with withstand both the heat and outdoor elements. The main thing I can suggest would be to cut several pieces of sheet metal to the same size as the cap lid and either rivet or screw them to the lid. By adding layers of metal, this will increase the overall thickness of the lid and will cut down on reverberation. Applying a thin layer of construction adhesive between the layers of metal would further insulate the noise. I apologize that I do not have a premade product to remedy this issue.
By Debbie from Edmond, OK on January 9, 2014
I have a Majestic BC36 wood burning fireplace. On windy days, puffs of smoke come into the living room. Do you have any solutions for this?
By Collin C. - NFI Master Hearth Professional on January 9, 2014
Unfortunately, this is an issue that often plagues open faced wood burning fireplaces, as they have a characteristically weak draft that wind can easily overwhelm. A product that is designed to help with this issue is the HomeSaver Air-Cooled WindBeater Stainless Steel Chimney Cap - 8 Inch Round
. The internally baffled cap acts as a stop to the wind and the lower baffle below the cap will still allow your chimney to breathe properly.
By Jim from Woodland, WA on January 4, 2014
I have a large woodburning fireplace with a 13" rectangular flue that is flush with the top of the chimney. Which single flue caps have available mounting hardware to attach to the flush top? It's fairly windy here so legs are probably not the best option. Also, I probably need 10" or more in height. What do you suggest?
By Collin C. - NFI Master Hearth Professional on January 6, 2014
For your application, a swing tab type of cap would be the best item to use. An example is the BigTop 14 in. x 21 in. Painted Black Galvanized Steel Multi-Flue Chimney Cover
. The mounting tabs can be pivoted to fit any angle of your chimney wash. You can utilize either construction adhesive or masonry anchors and screws to hold the unit to the chimney wash. This model is available in a 10 inch screen height as well.
By Dave Lance from Cerritos, CA on February 24, 2013
I need a chimney cap. I have a problem with bees. Do they make a chimney cap with mesh small enough to keep the bees out?
By Collin C. - NFI Master Hearth Professional on February 25, 2013
Answer:For instances when small insects are a nuisance, I recommend wrapping the factory chimney mesh with a smaller gauge stainless steel wire mesh. So as not to impede draft, I do not recommend going smaller than 1/8 of an inch.
By RC from Montville, NJ on August 3, 2014
I am looking for a Dual Flue Chimney Cap in stainless steel. See the sketch of the two Flues below. Could you please advise what size I should use? The 8 1/2 x13 Flue is used with an oil furnace. The other 13 x 13 is for a fireplace which is not used.
By eFireplaceStore on August 4, 2014
Based on your supplied information, one of our semi custom caps will serve you best. The Multi-Flue Semi-Custom Gelco Chimney Cap - 12" High Mesh
will be the best choice, as the 12 inch mesh height will be needed to clear the flues properly. Once on the page, you can select a 24 inch length, 16 inch width, standard mesh, and standard overhang. This will give you a proportional cap with perfect coverage.
By Joseph on November 9, 2012
What are the pros and cons of single chimney caps vs. one cap that covers both flues?
on November 9, 2012
Answer:The main advantages to a single cap are a cleaner look and generally lower cost overall. It will also eliminate the need for determining the proper lid size needed for the side by side flues. However, a single cap can cause back drafting issues, if the flues are close to each other. Individual caps, especially if they are staggered in height, will help to avoid the individual flues pulling against one another. Obviously, there must be enough clearance between the caps so that they do not bump one another.
Please let me know if I can assist you further.
By Ray on November 9, 2012
I am looking for a 17" x 22" chimney cap preferably that has a tightening band used to attach it to chimney. What options do you have available?
on November 9, 2012
Please view the cap at the link below. It has an outside perimeter band as you describe and can adjust between 16.5" to 18.5" on one side and 20.5" to 22.5" on the other. This should suit your needs accordingly.
Please let me know if you have any technical questions about the product or if I can help you in any other way.
By Pete on November 9, 2012
I have a double flue, each about 18 x 18. I use a vent free gas log set. I would like a flat cap on each flue. We live on a high ridge with a lot of wind. Is all is right if we get rain in the flues, even though the total stack has a concrete cover? Bottom line: we don't need the wire, just a means to tighten down a cover. Do you have any ideas?
on November 9, 2012
Answer:Given the fact that a vent free log set does put off some residual heat to the chimney, I would recommend using a wind/rain guard on the side of the chimney that is exposed to the prevailing wind the most. This way, the chimney will still be able to vent properly, but will be less susceptible to water intrusion. Unfortunately, this would be somewhat of a custom application, as we really do not carry anything that can be used on larger chimneys as a wind guard. You would likely need to have a guard manufactured by a fabricator out of 22 gauge stainless steel. Unfortunately, we do not offer any fabrication. We are a dealer of finished products only.
By Greg on November 9, 2012
What is the lowest cost for an 8" high cap that will fit my brick chimney with an outside diameter of 17.75" X 27"?
on November 9, 2012
Answer:Unfortunately, I do not have a cap in these exact dimensions. However, I do have caps that are slightly smaller and can be attached to the top of the chimney, rather than around the outer perimeter.
By Bob from Seattle on February 14, 2014
I have a Napoleon GDi44 with two 3 inch liners that attach to a Napoleon 14 x 16 high wind co-terminal (GDi226). The flue is a clay tile 12 x 16 in size and extends 10 inches above the crown. Do you have anything that can be used to attach the terminal to the flue, or a base that the terminal can be attached to for mounting to the flue?
By Collin C. - NFI Master Hearth Professional on February 14, 2014
Answer:Unfortunately, we do not offer any particular attachment to be used with the co-linear termination. Typically, the terminal would be attached with construction adhesive, but if you have too much overlap and air space results, you may need have a custom mounting plate made for the terminal to attach to. The only other option would be to cut down the terra cotta flue tile to be flush with the crown, allowing the termination to be cemented directly to the crown mortar.
By Tom from Long Valley, NJ on September 8, 2014
Is there a minimum distance from the top of the flu to the underside of the top of the cap? I wanted to make sure that I had enough distance to allow a proper flow.
By eFireplaceStore on September 9, 2014
Answer:The minimum required gap between the top of a clay flue tile and the underside of the cap lid is five inches. Keep in mind that this is a minimum and an inch or two of extra space will help to improve draft further, especially on shorter chimneys.
By Ann from Winston-Salem, NC on August 29, 2014
I have a flue, 10 3/8 inches square, flush with the chimney top. I want a chimney cap with mesh to keep out the birds and the top to keep out the rain. What would you suggest?
By eFireplaceStore on August 29, 2014
By Paul from Trenton, Ontario on November 4, 2012
I have a 5-inch liner inside an 8 inch x 12 inch clay flue tile. Can you please advise products that will fit this application? I prefer copper.
By Collin C. - NFI Master Hearth Professional on November 5, 2012
As far as capping the 8 x 12 flue tile goes, the Gelco 8 in. x 13 in.
cap could be adjusted to work. However, I am unsure of how your 5-inch liner is currently supported. It is possible to attach this cap over an existing top plate, if that is what you currently have.
Also, the supplier of this cap will not ship to Canada, but we could ship to a U.S. location for shipment forwarding of the cap.
By Perry from Cutler, Ohio on November 24, 2012
I purchased 6" double wall Super-Vent chimney pipe and I need to purchase a chimney cap. Is a Super-Vent cap the only brand that will work with this pipe?
By Collin C. - NFI Master Hearth Professional on November 26, 2012
Any push-in type of 6 inch cap for factory built chimneys will work. Selkirk's SuperPro line also uses the same type of twist lock mechanism as their Supervent line. As such, this SuperPro All-Fuel Deluxe Chimney Rain Cap
would offer a direct fit to your existing chimney and would give a factory appearance.
By Eric from Hillsborough, NJ on May 2, 2014
I need to cap off two chimneys on my home. The round opening is 10" diameter but the opening doesn't extend very far out. The rectangular opening is about 42" wide by 22.5" wide for the outside brick measurement.
I would like to know if any 10" round diameter rain cap will work for the first chimney. For the second, do you sell rectangular solid caps to cover the opening completely? That chimney is not in use.
By Collin C. - NFI Master Hearth Professional on May 5, 2014
For the first chimney, it appears you have enough projection to use a cap such as the HomeSaver Pro 10 in. Diameter Base Black Steel Chimney Cap for Round Clay Flue Tiles
. For the second chimney, a custom solid cover can be fabricated. This will include a reinforced center span and drip edge, also in black galvanized steel. If you would like to place an order for the custom cap, I can contact you via phone to do so.
By Rigo from Dallas, TX on November 18, 2014
Do you use screws to mount the Gelco Muti-flue to the top of the chimney?
By Kevin E. on November 18, 2014
Answer:That is correct. Standard masonry fasteners should be used.
By Tim from Statesville, NC on November 27, 2014
My chimney measure 16 5/8 inches x 55 1/8 inches. How does the cap anchor to the chimney? Do I need to cut back the mortar cap and make the cap smaller or does the cap anchor to the side?
By Tyler M. on November 28, 2014
Answer:Assuming you are referring to the Gelco semi-custom multi flue caps, those caps can be installed in one of two ways. The first is to set the cap in position to verify proper fit, then trace the outer perimeter of the mounting flange. You can then apply a bead of construction adhesive just inside the traced line, then position the cap again. This is the easier way to install, but the cap will be difficult to remove, should it ever need replacement.
The second way is to position the cap, then mark 4 to 6 attachment points evenly spaced around the perimeter of the perforated mounting flange. The cap must then be set aside and a masonry bit used to drill anchor holes into the chimney wash. After installing mounting anchors, place the cap in position again and fasten it to the wash with coarse thread screws.
By Dona from Searcy, AR on November 4, 2012
I have a double-wall solid pack insulated round chimney pipe. The interior pipe is 6". Exterior is 9". My present chimney cap has the interior pipe and then an exterior wall that fits over the outside pipe. The stove is installed in the front, on a very steep roof that is a single story in the front and two story in the back.
I need a replacement but am not sure exactly what to get. The company that installed the stove is out of business and there is nothing to tell me the brand of the original cap (22 years old).
By Tyler M. - Fireplace Specialist on November 5, 2012
By Teresa from Satsuma, Florida on January 18, 2013
I have a 1992 mobile home that has a FMI fullview fireplace model # 36ECM ll. I am trying to find a replacement round top termination cap. Do you know where I can get one?
By Tyler M. - Fireplace Specialist on January 18, 2013