DuraVent 9017SSCF 6 in x 36 in Class-A Chimney Pipe - Straight Length

In this review the DuraVent 9017SSCF from the DuraPlus Series is evaluated for installers and homeowners who need a reliable 36 in straight chimney section. The bottom line: this boxed straight pipe is for anyone fitting Class-A chimneys on wood stoves, fireplaces, boilers or water heaters who needs a durable, easy in-and-out fit and predictable insulation profile. The review focuses on practical installation behavior, compatibility, and the insulation details that affect installed length and clearances.

Key Features

• 36 in Length: Provides a long straight run that reduces the number of joints required and speeds installation for many chimney layouts.
• 6 in Diameter: Matches 6 in appliance outlets commonly found on compact stoves and water heaters for proper draft and fit.
• Boxed straight pipe format: Comes as a boxed straight section that is designed for straightforward handling and stacking on site.
• Easy in-and-out fit: The pipe is engineered for simple connection and removal, making service and repositioning less time consuming.
• DuraPlus insulation scheme: Uses a thicker 12 in insulation blanket for 24 in and 36 in sections which improves thermal separation over shorter lengths.

Who It's For

This product is aimed at professional installers and knowledgeable DIYers replacing or extending Class-A chimney systems on appliances that list compatibility with 6 in pipe, including wood stoves, fireplaces, furnaces, boilers, stoves, ranges and water heaters. The 36 in length is particularly useful when you want a longer straight run to minimize seams and maintain consistent draft.

Those who should look elsewhere include users who require a different diameter, custom lengths under 24 in where the insulation specification differs, or installers needing decorative or painted finishes - this is a functional, performance-focused boxed straight pipe intended for use inside flues and chimneys.

Pros & Cons

Pros

• Long 36 in section reduces the number of joints and speeds installation.
• Consistent 6 in diameter suits appliances listed for that outlet size and helps maintain draft.
• The thicker 12 in insulation used on this length improves thermal separation compared with shorter sections.
• Easy in-and-out fit simplifies maintenance and repositioning.

Cons

• The boxed straight pipe is a functional component without decorative finish, so it is not intended where appearance is a priority.
• The installed length calculation requires subtracting 1 1/2 in per section, which must be accounted for during layout.

Specifications

Our Verdict

The DuraVent 9017SSCF 36 in Class-A chimney pipe is a practical choice for installers who want a long, well-insulated 6 in section that speeds installation and eases maintenance. It offers good value for systems that need reliable thermal separation and a predictable installed length; choose it when appearance is secondary to performance and straightforward fitment.

Frequently Asked Questions

How does the insulation differ on this length?
The 36 in pipe uses a 12 in insulation blanket, which is thicker than the 1 in blanket used on some shorter 6 in, 9 in and 12 in sections.

How do I calculate installed length?
To determine installed length of DuraPlus chimney pipe, subtract 1 1/2 in from each length of chimney pipe when planning runs.

Which appliances is this compatible with?
It is designed for appliances listed for use with 6 in Class-A chimney pipe, including wood stoves, fireplaces, furnaces, boilers, stoves, ranges and water heaters.