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All About Elbow Straps: Installation, Common Problems, and Care

January 16, 2024

Elbow straps are crucial components in chimney installations, especially when using flexible chimney liners. They are designed to support the weight of the liner and maintain its position within the chimney. Proper installation and maintenance of elbow straps are key to ensuring the safety and efficiency of your chimney system. Here’s a comprehensive guide on the installation process, common problems, and care tips.

Step-by-Step Installation of Elbow Straps

  1. Prepare the Area: Before starting, ensure the area around the chimney is clear and safe to work in. Wear protective gear such as gloves and safety glasses.
  2. Measure and Mark: Accurately measure the distance from the elbow to the point where the strap will be attached. Mark this spot on the chimney liner.
  3. Attach the Elbow Strap: Open the strap and wrap it around the marked area on the liner. The strap should fit snugly but not too tightly around the liner.
  4. Secure the Strap: Use screws or bolts provided with the elbow strap to secure it in place. Ensure that it is tightly fastened and the liner is held securely.
  5. Connect to the Elbow: Attach the other end of the strap to the elbow. This may involve screwing it into a designated spot on the elbow or using a clamping mechanism.
  6. Final Adjustments: Once connected, make any necessary adjustments to ensure the liner is straight and properly aligned within the chimney.
  7. Safety Check: Perform a final safety check to make sure everything is secure and there are no loose parts.

Common Problems with Elbow Straps

  • Loosening Over Time: Elbow straps can become loose due to the natural expansion and contraction caused by temperature changes.
  • Corrosion: Metal straps can corrode over time, especially in harsh weather conditions or if exposed to moisture.
  • Improper Sizing: If the strap is not the correct size for the liner, it can lead to ineffective support and alignment issues.

How to Take Care of Elbow Straps

  • Regular Inspections: Conduct regular inspections to check for any signs of wear, loosening, or corrosion.
  • Tightening and Adjustments: Periodically tighten the straps and make adjustments as needed to ensure proper support.
  • Rust Prevention: Apply anti-corrosion treatments if the straps are exposed to harsh conditions.
  • Replacement: Replace the straps if they show significant signs of wear or corrosion.


Elbow straps are a small but significant part of your chimney installation. Proper installation, regular inspections, and timely maintenance are crucial for their effectiveness and the overall safety of your chimney system. By following these guidelines, you can ensure that your elbow straps remain in good condition and perform their role effectively.

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