The American Metal 8HS-24 is the clearest match for buyers specifically seeking an 8-inch triple-wall chimney pipe. Other listed options include insulated Class-A or triple-wall pipe, but product descriptions do not identify every model’s wall construction. Compare diameter, pipe length, system compatibility, and installation requirements before choosing. The DuraVent 9206 is a short section, while the Selkirk and AllFuel HST options offer other insulated chimney-pipe configurations. Do not mix chimney brands unless the manufacturer confirms compatibility.
| Product | Listed configuration | Best suited for |
|---|---|---|
| American Metal 8HS-24 | 8-inch triple wall, 24 inches long | Buyers seeking a stated triple-wall section |
| DuraVent 9206 | 8-inch inner diameter, 6-inch length | Short pipe runs or spacing needs |
| DuraPlus 36-inch | 8-inch chimney pipe, 36 inches long | Buyers comparing a longer DuraVent section |
| Selkirk 208024 | 8-inch ID, 24 inches long | Buyers who need listed temperature information |
| AllFuel HST 36-inch | 304 stainless steel, insulated Class-A double wall | Buyers considering a specified double-wall system |
American Metal 8HS-24 Triple-Wall Pipe

This 8-inch-by-24-inch section is the most direct match for the keyword because its product name and listed features specify triple-wall chimney pipe. It has a snap-lock joint end, which is a relevant connection detail to verify against the rest of the chimney system.
Best for: Buyers who specifically need an 8-inch triple-wall section in a 24-inch length. It was selected because the listed description directly identifies both the diameter and triple-wall construction.
Consideration: The supplied details do not state clearance, temperature rating, or compatibility with other brands. Confirm these specifications in the product documentation before installation.
DuraVent 9206 Short Pipe Section

The DuraVent 9206 is listed as a 6-inch-long pipe with an 8-inch inner diameter and 12-inch outer diameter. The dimensions make it a short section to consider where a full-length pipe would not fit the planned layout. The supplied product features do not specify its wall construction.
Best for: Buyers comparing short 8-inch-inner-diameter sections or needing a small length increment. It was selected because its listed inner diameter matches the requested size.
Consideration: Do not assume this is triple-wall based on the keyword or the brand. Verify its construction and compatibility with the exact chimney system before buying.
DuraPlus 8-Inch 36-Inch Chimney Pipe

This DuraPlus listing identifies an 8-inch chimney pipe in a 36-inch length. Its listed brand information describes DuraVent as a maker of venting systems for HVAC, hearth, and industrial applications. The provided features do not give the pipe’s wall construction or additional specifications.
Best for: Buyers comparing a longer 8-inch pipe section from DuraVent. Its 36-inch length distinguishes it from the 24-inch American Metal and Selkirk options.
Consideration: The supplied information does not confirm triple-wall construction, clearances, or which components it connects to. Check the manufacturer’s system requirements before selecting it as a replacement or extension.
Selkirk 208024 Insulated Chimney Pipe

The Selkirk 208024 is listed as a 24-inch insulated chimney pipe with an 8-inch inside diameter and 10-inch outside diameter. Its listed test temperature is 2,100 degrees Fahrenheit. The available product details do not state that it is triple-wall.
Best for: Buyers who need a 24-inch insulated 8-inch-ID section and want a listed temperature figure for comparison. It was selected because its dimensions match the requested inner diameter.
Consideration: Confirm the precise wall construction and compatible chimney components. The temperature detail alone does not establish suitability for a particular appliance or installation.
AllFuel HST 36-Inch Double-Wall Pipe

This 36-inch AllFuel HST section is explicitly described as insulated Class-A double-wall pipe, not triple-wall. It uses 304 stainless steel inner and outer walls with laser-welded seams and a ceramic-fiber blanket. The listing states a 2-inch clearance to combustibles and says the insulation helps maintain flue temperatures for draft.
Best for: Buyers considering a specified double-wall Class-A system rather than requiring triple-wall construction. It was selected as a clearly described insulated alternative in the 8-inch product group.
Consideration: It is compatible with AllFuel HST Class-A double-wall chimney pipe and cannot be connected to other brands of Class-A chimney, according to the listing.
Buying Guide: How To Choose 8-Inch Chimney Pipe
Does the product need to be triple-wall?
Check the product specifications rather than relying on search terms or appearance. In this selection, the American Metal 8HS-24 is explicitly identified as triple-wall. The AllFuel HST listing explicitly says double-wall, while several other descriptions do not identify wall construction. If triple-wall is a firm requirement, verify the exact model documentation before purchase.
What pipe length should you choose?
Compare the listed section length with the layout and the other components in the system. The options here include 6-, 24-, and 36-inch sections. Short sections can help with small spacing adjustments, while longer sections cover more distance. Confirm how the manufacturer measures pipe length and how sections join.
How important are diameter and system compatibility?
Match the required inner diameter, not just the outside measurement. The Selkirk listing gives both an 8-inch inside diameter and a 10-inch outside diameter; DuraVent 9206 lists an 8-inch inner and 12-inch outer diameter. Follow the chimney manufacturer’s instructions for connections, clearances, and components. Do not combine brands based on diameter alone.
What specifications should buyers verify?
Before ordering, check the appliance requirements, pipe construction, clearance to combustibles, temperature information, and approved connection components. Product details vary, and missing information should be confirmed with the manufacturer or complete installation documentation. Follow local building and fire-safety requirements.
Frequently Asked Questions
Which listed product is explicitly triple-wall?
The American Metal 8HS-24 product description explicitly identifies an 8-inch triple-wall chimney pipe with a snap-lock joint.
Is AllFuel HST triple-wall pipe?
No. The provided AllFuel HST description identifies it as insulated Class-A double-wall pipe.
What does 8-inch pipe size usually refer to?
Product descriptions may use 8 inches for the inner diameter, but confirm the specific listing. Outside diameter can be larger, as shown by the Selkirk and DuraVent 9206 dimensions.
Can chimney pipe brands be mixed?
Do not assume different brands are compatible. The AllFuel HST listing specifically says it cannot connect to other brands of Class-A chimney; verify compatibility for any system.
Which option is the shortest?
The DuraVent 9206 is listed as 6 inches long, making it the shortest section among the five products compared here.