5.5 Inch diameter Round Aluminum Chimney Liner Kit

The 5.5 Inch Aluminum Round Chimney Liner Kit is a lightweight and cost-effective chimney liner designed specifically for venting gas appliances. Made from high-quality 2-ply 3003 aluminum, this liner kit is ideal for relining masonry chimneys while protecting against flue gas condensation and improving venting performance.

This 5.5 inch aluminum chimney liner kit is commonly used for gas fireplaces, furnaces, boilers, and water heaters that require slightly more venting capacity than a standard 5" liner. It is designed for Category I natural draft gas appliances and should not be used with wood-burning or high-temperature applications.

The flexible aluminum construction allows the liner to easily navigate bends and offsets within masonry chimneys, making installation quick and efficient. Its lightweight design makes handling easier compared to stainless steel liners while still providing reliable performance for gas venting.

Aluminum chimney liners are a popular choice for gas appliance relining due to their affordability, ease of installation, and resistance to corrosion from low-temperature flue gases.

Key Features: 5.5" round sizing (5.75" outer diameter), 2-ply 3003 aluminum construction, flexible design, UL listed for gas applications, lightweight material, corrosion-resistant, gas-tight seams, and lifetime warranty.

Product Specifications

Product type:	Aluminum chimney liner kit
Shape:	Round
Inner diameter:	5.5 inch
Outer diameter:	5.75 inch
Material:	2-ply 3003 aluminum
Wall construction:	Flexible aluminum
Application:	Gas appliances only (Category I)
Certification:	UL listed

Key Benefits

Lightweight	Easier to handle and install compared to stainless steel liners
Cost-Effective	More affordable option for gas appliance venting
Flexible Installation	Easily navigates bends and offsets in masonry chimneys
Corrosion Resistant	Designed to withstand moisture and flue gas condensation from gas appliances
Improved Draft	Helps maintain proper airflow for efficient venting performance
Code Compliant	Approved for use with Category I natural draft gas appliances
Complete Kit	Includes components needed for a typical chimney relining installation

This 5.5 inch aluminum chimney liner kit can be customized with different lengths, top plates, chimney caps, and adapters to match your specific installation requirements.