Selkirk 1750035 Flex Aluminum Chimney Liner Kit 5 Inch 35 Foot

Product Description

The SELKIRK 1750035 is a 5-inch flexible aluminum chimney liner kit designed for relining masonry chimneys in gas appliance applications. The kit includes a 35-foot Flexi-Liner length, round top, flashing with 3-inch collar, mortar guard, fasteners, and instructions — everything needed to complete a single-flue reline job. The liner uses a seamless construction process that increases compressibility, allowing it to ship and store in a slim-line suitcase-style carton. That same seamless build improves rip resistance and overall liner durability compared to seamed alternatives. Licensed chimney professionals and HVAC technicians install this liner as part of a gas appliance venting system upgrade or code-compliance restoration.

The 1750035 kit is suited for residential and light-commercial masonry chimneys being relined for gas appliance service. Typical applications include relining an existing masonry flue to properly vent a gas furnace, boiler, or water heater where the original flue is oversized, deteriorated, or otherwise non-compliant. The 5-inch diameter and 35-foot length address common single-story and two-story chimney configurations. This kit is specific to gas applications and is not intended for solid-fuel or oil appliance venting without confirming appropriate ratings.

Key Features

• Seamless aluminum construction increases compressibility and rip resistance
• 5-inch diameter, 35-foot length for standard residential masonry chimney relining
• Complete kit includes liner, round top, flashing with 3-inch collar, mortar guard, fasteners, and instructions
• Slim-line suitcase-style carton for easier jobsite handling and storage
• Rated for gas appliance chimney liner applications

Compatibility

Designed for use with gas appliance chimney liner systems in masonry flues requiring relining. Suitable for gas appliances per the application rating included with this kit.

Installation Notes

Installation should be performed by a licensed chimney sweep, HVAC technician, or qualified contractor familiar with NFPA 211 and local venting codes. Shut off and lock out all connected gas appliances before beginning liner installation. Confirm the existing masonry flue is clean, structurally sound, and properly sized for the liner diameter before inserting the flexible liner. Follow the manufacturer-supplied instructions included in the kit for top termination and flashing sealing procedures.

Technical Specifications

• Diameter: 5 inches
• Length: 35 feet
• Material: Aluminum
• Construction: Seamless
• Application: Gas appliance chimney liner system
• Kit Contents: Flexi-Liner, round top, flashing with 3-inch collar, mortar guard, fasteners, instructions

Standard Information

• Brand: SELKIRK
• Manufacturer Part Number: 1750035