Chimney Caps: The #1 Chimney Cover Store (Free Calculator)
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When wind-driven rain blows into the chimney cap and goes down the flue and the shafts that hold the flue, where does the water go besides the fireplace itself?
Provided you have no leaks or loose joints in the manufactured chimney, the precipitation will be in the fireplace itself or on top of the firebox, in addition to the inside walls of the chimney.
Answered by:
Tyler M. - NFI Master Hearth Professional
on Feb 28, 2023
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Larry K.from Lewes delaware asked:
I was told you should never put a chimney cap on an oil-fired furnace. Is that true?
You can indeed use a stainless steel cap suitable for a class A chimney on such a system.
Answered by:
Tyler M. - NFI Master Hearth Professional
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Mike S.from asked:
What are the dimensions, width, and height?
The base of the chimney cap is approximately 9.25" x 9.25", and the lid is 16" x 16". The height from the base to the screen under the lid is approximately 9.5".
Answered by:
on Jun 12, 2024
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Angel C.from Florida asked:
I have a discontinued chimney cap FTF8-CTD. What do you recommend as a replacement?
Answered by:
Tyler M. - NFI Master Hearth Professional
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Preston C.from Rock Hill SC asked:
Do you have a complete chimney cover?
Unfortunately, we do not offer full seal chimney covers.
Answered by:
Brennan W.
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John M.from pittsburgh asked:
What's the best material for a chimney cap that does not rust?
The best material for rust prevention and heat tolerance would be copper, followed by stainless steel.
Answered by:
Tyler M. - NFI Master Hearth Professional
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Bevfrom Southern Pines, NC asked:
Our architect drew a chimney topper similar to the image you have in your guide of the two different height plies on a red roof. Do you have toppers like that?
We do not sell chimney caps/vent terminations in this style. We apologize for the inconvenience.
Answered by:
Tyler M. - NFI Master Hearth Professional
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Michael L.from Chino Valley Arizona asked:
Are the chimney caps adequate for containing ash?
No. The caps listed as California Caps have a tighter mesh screen for the higher wildfire areas of the US.
Answered by:
Owen O.
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Marcia Y.from West Monroe. NY asked:
Is there a cap for a mobile home to keep the snow from shutting off the furnace? Can a cap be extended on a mobile home to keep the snow from blocking the cap?
If this is a gas furnace, the cap installed is likely the only option as these are model specific.
Answered by:
Tyler M. - NFI Master Hearth Professional
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David H.from canyon country ca asked:
Is there a cap to keep bees out?
Most of our caps have a 3/4" or 5/8" mesh screen and, due to the design of the caps, bees could still cause an issue. We do have some louvered caps, but these are model-specific and can only be used on certain model chimneys.
Answered by:
Tyler M. - NFI Master Hearth Professional
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Sarahfrom Council, ID asked:
What type of cap would prevent smoke from filling up the house? When the wind blows out of the NW our house gets smoke in it.
We would recommend one of our wind-resistant caps.
Answered by:
Tyler M. - NFI Master Hearth Professional
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Hookitfrom Idaho asked:
I have 6" flex stainless out of an existing clay flue. I want a cap to cover the existing 20"x20" masonry chimney with a hole for the 6" pipe. Do you stock something like that in galvanized or is that a custom made part?
They make a top plate, which holds the flex liner and covers the brick chimney flue. Then a cap that attaches to that, and they are made from stainless steel.
Answered by:
Owen O.
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Gregfrom Oklahoma City, OK asked:
Wasps come through the 5/8 mesh on my chimney caps. Is there a finer mesh or some other solution that will prevent intrusion by wasps while still providing adequate airflow?
Nothing standard, but you can replace the 5/8" with a tighter mesh that would not be an issue.
Answered by:
Owen O.
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Darrell P.from Litchfield Illinois asked:
Have a 24'x16" outside dimension brick chimney that I believe a surface mount would work best on. The customer wants a round vent on top. It has hot water exhaust. What do you recommend?
For masonry chimneys with clay or terracotta flues, we do not offer a round flue cap for a chimney this size.
Answered by:
Tyler M. - NFI Master Hearth Professional
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Dave H.from asked:
What can I do to seal up the top of my fireplace if I no longer want to use it?
The best option we have to offer would be a damper cap that would mount to the top of your flue. A cable would run from the damper assembly located atop your chimney down through the damper opening. By pulling the cable down and securing the handle to an included bracket that would be anchored to the side of the fireplace opening, the cap would provide a tight seal.
Answered by:
Will M.
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David B.from Blanchard, OK asked:
The outside measurements that I need a cap for are 17.5 x 17.5, should I purchase an 18 x 18?
18" x 18" would indeed be the best way to go.
Answered by:
Brennan W.
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Stevefrom Charlottesville, VA asked:
We need a new wood stove pipe cap. The pipe is single wall, 6 inches. What are our options? Thanks
Unfortunately, we do not have any caps that could fit single wall stove pipe, as the stove pipe is supposed to transition over the Class A chimney pipe before exiting the house.
Answered by:
Brennan W.
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Sara A.from Marion, va asked:
I need a chimney cap for a brick chimney with 2 flues. The outside dimensions are 17.25 x 41.75 inches and the flues are flush with the top of chimney. Can you recommend which cap would work best?
I normally suggest going right to the edge of the chimney crown to make sure you have maximum coverage in the event of heavy/slanted rain. With your flue being flush, I'd say a 41" x 17" cap with an 8" height would be ideal.
Answered by:
Brennan W.
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Markfrom Hickory, NC asked:
On the surface mount caps, how wide or deep are the mounting flange?
Just over 1".
Answered by:
Owen
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Janetfrom Thomaston, ME asked:
How does the multi-flue Gelco chimney cap attach to the chimney?
It attaches to the crown with TapCons and adhesive.
Answered by:
Owen
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Lisafrom Trcukee, CA asked:
Is there a standard width chimney cap?
There is no standard chimney cap. With masonry fireplaces, the construction is very much subject to builder discretion and the flue measurements will subsequently vary widely. With manufactured fireplaces, the chimney and chimney cap will be very specific to the fireplace.
Answered by:
Will M.
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Lancefrom Lewisville, TX asked:
Do I measure the inside or the entire chimney?
It would depend on how you would like the cap to mount. On a flue mounted cap, we would need the inner and outer diameter of the flue itself.
Answered by:
Owen
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Beth B.from Denham Springs, LA asked:
Where would I find a chimney cap screen?
Unfortunately, we do not carry screens for chimney caps.
Answered by:
Brennan W.
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Maryfrom Sacramento, CA asked:
How do I know which height chimney cap to get?
The height will depend on how high the clay flue sticks up from your chimney. The cap will need to be a minimum of 5" above the clay flue.
Answered by:
Brennan W.
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Clarencefrom Stuart, VA asked:
How far above the top of the flu do these chimney cap covers need to be?
When selecting a chimney cap, you will need to ensure the mesh height or lid will be at least 5" taller than the highest flue tile that extends from your crown. Typically, the terracotta flue should extend 2" above the crown, splay or wash, however, the flue tile can sometimes be level with this surface or extend much higher than 2". We have caps on our site that can accommodate this issue and we also have a custom fabrication department that can make a cap to your needs, with the proper information provided.
Answered by:
Will M.
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Tomfrom Long Valley, NJ asked:
Is there a minimum distance from the top of the flu to the underside of the top of the cap?
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.
Answered by:
eFireplaceStore
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Jimfrom Durand, MI asked:
For a multi-cap chimney, would I need to measure the length, width, and height of flues?
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.
Answered by:
Collin C. - NFI Master Hearth Professional
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Rayfrom OK asked:
How can I keep water from going down my chimney?
Generally, the best way to stop this from happening is to use a chimney cap that is oversized to the chimney opening.
Answered by:
Collin C. - NFI Master Hearth Professional
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Dave L.from Cerritos, CA asked:
Do they make a chimney cap with mesh small enough to keep the bees out?
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.
Answered by:
Collin C. - NFI Master Hearth Professional
Thank you for your interest in our products. We've received your question and will get back to you shortly — usually within the hour but always within 1 business day. To ensure you receive our response, please add our email address (info@efireplacestore.com) to your email whitelist or address book.
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You should have a chimney cap if you've got an active chimney. Chimney caps help keep critters and debris out while keeping sparks and embers in. If you don't have a chimney flue cap, your chimney might also be compromised by weather damage like rust or mold. Copper chimney caps also enhance the outer appearance of your flue pipe. If you'd like to learn more about your need for a flue cap, check out our Chimney Cap Buying Guide for everything you need to know about a chimney cover!
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