12", 14", 14.5", and 15" Oval Double Ply Smooth Chimney Liner (Only)

The 12", 14", 14.5", & 15" Oval Double Ply Smooth Chimney Liner is a premium stainless steel chimney liner designed to improve chimney performance, safety, and durability in installations where a standard round liner will not properly fit. Manufactured from high-quality 316 stainless steel, this double ply smooth liner is ideal for relining large masonry chimneys with limited space while protecting against corrosion, moisture, and flue gas leaks.

These large oval double ply smooth chimney liners are commonly used for commercial fireplace systems, large wood stoves, boilers, furnaces, and other high-output heating appliances requiring an ovalized venting solution to fit narrow or offset chimney flues. Their oval design maximizes available chimney space while maintaining strong draft and airflow performance.

The double-ply smooth construction provides enhanced strength, durability, and improved airflow performance compared to standard corrugated liners. Its flexible design allows the liner to navigate bends and offsets within masonry chimneys while maintaining superior structural integrity and long-term reliability.

Smooth oval chimney liners provide improved draft efficiency and easier cleaning compared to corrugated liners, helping maximize appliance performance while simplifying maintenance.

Key Features: Available in 12", 14", 14.5", and 15" oval sizing options, double-ply smooth flexible construction, 316 stainless steel, UL 1777 listed, made in the USA, air- and water-tight design, superior airflow performance, and lifetime warranty.

Product Specifications

Product type:	Double ply smooth oval chimney liner
Shape:	Oval
Available sizes:	12", 14", 14.5", and 15"
Material:	316 stainless steel
Construction:	Double-ply smooth flexible
Certification:	UL 1777 listed

Key Benefits

Fits Tight Chimney Spaces	Oval shape allows installation in narrow masonry chimney flues
Improved Airflow	Smooth interior enhances draft and appliance efficiency
Flexible Installation	Easily navigates bends and offsets in masonry chimneys
Enhanced Durability	Double-ply construction provides added strength and long-term reliability
Easier Cleaning	Smooth interior helps reduce buildup and simplifies maintenance
Improved Safety	Helps contain flue gases and reduce the risk of leaks
Air- & Water-Tight	Prevents leaks and protects chimney structure
Commercial-Grade Venting	Supports large high-output heating appliances while fitting tighter chimney spaces
Made in USA	Manufactured with high-quality materials and standards
Warranty	Lifetime warranty (transferable)

This 12", 14", 14.5", and 15" oval double ply smooth chimney liner can be customized with different top plates, chimney caps, adapters, and other chimney components to match your installation requirements.