Lennox 60P07 Selkirk AF25-04 4 Inch x 25 Foot Flexi-Liner Aluminum Flexible Chimney Liner Kit is a durable, lightweight venting solution designed for gas furnace, boiler, and water heater applications. This 4 inch diameter by 25 foot long aluminum chimney liner provides corrosion-resistant performance and flexible installation in masonry chimneys. Ideal for natural draft gas appliances, the AF25-04 Flexi-Liner kit helps improve venting efficiency and ensures safe exhaust of flue gases in residential HVAC systems.
The Lennox 60P07 Selkirk AF25-04 Flexi-Liner Kit is a 4 inch x 25 foot aluminum flexible chimney liner designed for gas furnace, boiler, and water heater venting applications. Engineered for use with natural draft gas appliances, this aluminum chimney liner provides reliable flue gas exhaust and improved venting performance in masonry chimneys.
The flexible aluminum construction allows easier installation through offsets and irregular chimney passages, while maintaining corrosion resistance for long-term durability. The AF25-04 liner kit is ideal for relining existing chimneys to help restore proper draft and enhance overall HVAC system safety and efficiency.
Key Features
• 4 inch diameter x 25 foot length aluminum flexible chimney liner • Designed for natural draft gas furnace, boiler, and water heater venting • Corrosion-resistant aluminum construction • Flexible design for easier installation in masonry chimneys • Helps improve venting efficiency and safe exhaust of flue gases • OEM-quality venting solution for residential HVAC systems
Applications
Suitable for residential gas-fired appliances requiring 4 inch venting. Commonly used in chimney relining projects for furnaces, boilers, and water heaters where improved draft and safe flue gas removal are required.
The Lennox 60P07 Selkirk AF25-04 4 Inch x 25 Foot Flexi-Liner Aluminum Chimney Liner Kit is a dependable HVAC venting solution for contractors and homeowners seeking safe, efficient gas appliance exhaust performance.
