Rockford Chimney Supply
Adjustable Elbow for Flexible Liners
Best adjustable solution for DIY fireplace insert liner installations.
Simplify your chimney liner installation with Rockford Chimney Supply's Adjustable Elbows. Designed for flexible liners, these elbows are ideal for connecting to a fireplace insert, especially when routing through an angled smoke shelf. They feature laser-welded seams for smooth adjustments and a quick-connect band clamp for a secure, reliable fit. The female connection end accepts the flex liner directly, eliminating the need for extra adapters. Available in 45-degree and 90-degree models, they offer adjustable angles from 0 to 45 or 0 to 90 degrees, ensuring a precise fit for your unique setup. This product is UL Listed for safety.
$71.99
Owner Satisfaction
4.6
/ 5
Category Rank
141
/ 548
#141 in Fireplace & Wood Stove Accessories
Price vs Category Average
-87%
Below average
Available Sizes/Angles
3.9.4590
/ in to in diameters, in ° and ° models
Who it's for
- Installers navigating complex or non-straight chimney flue paths
- Homeowners seeking a secure, stress-free connection to their appliance
- Users prioritizing efficient airflow and consistent chimney draft performance
Who should skip it
- Budget-conscious buyers looking to minimize total project material costs
- Installers working within extremely tight or narrow chimney base spaces
- Maintenance-focused owners wanting to minimize internal soot and creosote accumulation
Performance breakdown
Installation Versatility
Adjustable angles make navigating complex smoke shelves significantly easier.
Build Integrity
Laser-welded stainless steel seams provide exceptional durability and structural reliability.
Connection Efficiency
Direct flex liner compatibility eliminates the need for cumbersome extra adapters.
Safety Compliance
UL listing ensures peace of mind for high-temperature flue gas applications.
Adjustment Smoothness
Precision engineering allows for fluid angle changes during the fitting process.
Secure Fit
Quick-connect band clamps provide a tight, vibration-resistant seal for liners.
Key Specs
Available Sizes/Angles
3 in. to 9 in. diameters, in 45° and 90° models
Seams
Laser welded
Connection
Quick connect band clamp
End Type
Female end accepts flex liner
Material
Stainless Steel
Certifications
UL Listed (for 316Ti flexible chimney liner and components)
Max Flue Gas Temp
1050°F (with optional sealer)
Accessory Type
Vent Pipe
Features
- Adjustable angle for precise installation
- Laser welded seams for smooth adjustment
- Quick connect band clamp ensures secure fit
- Female end accepts flex liner directly
- No adapter needed for liner connection
- Ideal for angled smoke shelf transitions
- UL Listed components for safety
- Available in 45° and 90° models
What customers say
Installers and DIYers consistently praise the Rockford Chimney Supply Adjustable Elbow for its exceptional ability to simplify challenging chimney installations. Its key adjustability feature significantly reduces time and labor, making difficult angles and offsets manageable. Reviewers highlight the robust, heavy gauge stainless steel construction, instilling confidence in the liner system's durability and resistance to flue gases and heat. While some note the adjustment mechanism can initially be stiff, this minor point is quickly forgotten once the desired angle is securely locked. This high quality component is recognized as an essential tool that greatly lowers installation risk and complexity, earning strong recommendations for tackling tough lining projects.
Know before you buy
No, you do not need an extra adapter. The elbow features a female connection end specifically designed to accept your flexible liner directly for a streamlined installation.
The 45-degree model allows for adjustments between 0 and 45 degrees, while the 90-degree model provides a wider range of motion from 0 to 90 degrees. Choose the model that best accommodates the specific angle of your smoke shelf or fireplace insert transition.
Yes, these stainless steel elbows are UL Listed and rated for flue gas temperatures up to 1050°F when used with an optional high-temperature sealer.
Each elbow includes a quick-connect band clamp. This component is designed to tighten securely around the connection point, ensuring the liner remains firmly in place.
Yes, this product is compatible with water heater venting systems, provided the diameter matches your specific venting requirements.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$72