The FireFlex Flexible Chimney Liner Tee Kit is a stainless steel chimney liner kit designed for installations that need a tee connection and horizontal hookup support. The confirmed product details point to a 5.5 inch by 20 foot liner, along with a top plate, rain cap, tee connector, and cleanout cap for the horizontal section. It is described as UL 1777 listed, made in the USA, and backed by a lifetime transferable warranty.
Quick Overview
This kit is intended for chimney liner installations where a tee connector is part of the setup. The included components are aimed at creating a more complete liner system rather than providing only the liner itself. For homeowners or installers comparing chimney liner options, the most useful details are the liner size, the included tee assembly, and the listed certification and warranty.
| Product Type | Flexible chimney liner tee kit |
|---|---|
| Brand | FireFlex |
| Material | 316 stainless steel |
| Dimensions | 5.5 in x 20 ft |
| Included Components | Liner, 13 in x 13 in top plate, rain cap, tee connector, 10 in snout cleanout cap |
| Certification | UL 1777 Listed |
| Warranty | Lifetime transferable warranty |
| Manufacturing | Made in the USA |
What the FireFlex Flexible Chimney Liner Tee Kit Includes
The key value of this chimney liner kit is that it combines several installation pieces into one package. The confirmed included parts are a FireFlex 316 stainless steel liner, a 13 inch by 13 inch top plate with a rain cap, and a tee connector with a 10 inch snout cleanout cap. That combination matters because a tee setup is commonly used where the liner needs to connect to a horizontal section and allow access for cleaning.
The liner thickness is listed as .006 thick stainless steel. If thickness is important for your project, that figure is one of the main product-specific details worth checking alongside local installation requirements and appliance compatibility.
Why the Tee Connector Matters
A tee connector is one of the defining parts of this kit. In chimney liner systems, a tee is used to manage the transition between vertical and horizontal sections. The included cleanout cap on the tee snout adds access for maintenance, which can be helpful in installations that need periodic inspection or cleaning.
This makes the kit more specialized than a straight liner-only package. It may be suitable for liner jobs involving a fireplace insert or another setup where the connector at the base of the flue needs to accommodate a horizontal run. Because chimney and venting configurations vary, the exact fit should always be checked against the appliance and chimney structure before installation.
Materials and Construction
The main material listed for the liner is 316 stainless steel. Stainless steel chimney liners are commonly chosen because they are designed for long-term exposure to heat and flue gases. The available details do not provide a full breakdown of seam construction, corrugation count, or other fine manufacturing specifications, so those should not be assumed.
What can be confirmed is that the product is a flexible liner kit, which means it is made for a chimney path that may not be perfectly straight or easy to line with rigid sections. Flexibility can be useful during installation, especially in older masonry chimneys or flues with offsets.
Certification, Warranty, and Manufacturing
The FireFlex Flexible Chimney Liner Tee Kit is listed as UL 1777 Listed. That certification is important to many buyers because it identifies the liner as meeting a recognized standard for chimney liner systems.
The kit also includes a lifetime transferable warranty. Transferable warranties may be worth noting if future property ownership matters, since that can affect the long-term value of the product for some installations.
Another confirmed detail is that the kit is made in the USA. For readers who prefer domestically manufactured building products, that may be a relevant point when comparing options.
Common Applications
This chimney liner kit is designed for applications that require a tee connection and a horizontal cleanout setup. In practical terms, that can matter for fireplace insert installations or similar venting arrangements where the liner needs to connect through the chimney and then continue to a horizontal appliance connection.
It is also a product where the dimensions matter a great deal. The confirmed size is 5.5 inches by 20 feet, so compatibility with an existing flue or appliance collar should be checked carefully. A chimney liner should not be selected by brand name alone, because the actual dimensions and installation layout need to match the system being lined.
Who It May Be Suitable For
This kit may appeal to people who already know they need a flexible liner with a tee assembly. It may be especially useful for:
- Homeowners replacing or upgrading a chimney liner system
- Installations that require a horizontal connection
- Projects where UL 1777 listing is an important check point
- Buyers looking for a kit that includes the top plate, rain cap, and cleanout cap
- Those who want a transferable warranty as part of the product package
Because chimney liner work is tied to safety and building requirements, it is also the kind of product where consulting a qualified installer or reviewing local code requirements can be worthwhile before purchase.
Things to Check Before Choosing This Kit
Several details matter before selecting a chimney liner tee kit. The most important one is whether the 5.5 inch diameter is the right match for the appliance and chimney application. The 20 foot length is another detail to confirm, especially if the flue height is uncertain.
It is also worth checking whether the included tee connector layout fits the existing chimney path. Since this product is configured for horizontal connections, it is not the same as a straight-through liner package.
Other practical points to verify include:
- Whether the chimney opening and appliance connection match the liner size
- Whether the installation requires a tee or a different connector style
- Whether the included top plate dimensions suit the chimney opening
- Whether the listed materials and certification align with project requirements
How This Kit Compares with Similar Chimney Liner Options
Compared with a basic flexible liner, this FireFlex kit is more complete because it includes the tee connector and cleanout cap. That can reduce the number of separate parts a buyer needs to source for a horizontal hookup installation.
Compared with other chimney liner tee kits, the most useful distinguishing details here are the 5.5 inch by 20 foot size, the 316 stainless steel liner, UL 1777 listing, and lifetime transferable warranty. Those are the confirmed facts that set it apart without needing to make assumptions about performance beyond the provided product details.
For the latest product information and specifications, view the current product listing.
Frequently Asked Questions
What is included with the FireFlex Flexible Chimney Liner Tee Kit?
The confirmed included components are a FireFlex 316 stainless steel liner, a 13 inch by 13 inch top plate with rain cap, a tee connector, and a 10 inch snout cleanout cap for horizontal connections.
Is this chimney liner kit UL listed?
Yes. The product information states that it is UL 1777 Listed.
What size is the liner?
The confirmed size is 5.5 inches by 20 feet.
Does the kit include a warranty?
Yes. It is listed with a lifetime transferable warranty.
Where is it made?
The product is described as made in the USA.
Final Thoughts
The FireFlex Flexible Chimney Liner Tee Kit is a specialized chimney liner package for installations that need a tee connector and horizontal cleanout access. Its confirmed details, including the 316 stainless steel liner, UL 1777 listing, lifetime transferable warranty, and made in the USA status, make it a straightforward product to evaluate for chimney projects where those features matter.
For anyone comparing chimney liner kits, the most important step is to verify that the 5.5 inch by 20 foot size and tee configuration match the existing system. Once those fit requirements are clear, the included top plate, rain cap, and cleanout cap make this a more complete liner solution than a basic liner-only setup.