Upgrade Your Hearth With This 6X35 Ft Flexible Insulated Chimney Liner Kit

This 6-inch by 35-foot flexible insulated chimney liner kit delivers immediate draft improvements and heat retention for aging masonry flues and factory-built hearths. The continuous bendable construction navigates stacked offsets and tight vertical chases, eliminating the need for structural chimney rebuilding during your fireplace upgrade.

Thermal Efficiency and Condensation Control

The built-in insulation jacket captures exhaust heat to keep flue gases above the dew point. Sustained high temperatures prevent moisture condensation inside the vent system, which minimizes acidic corrosion and dramatically reduces creosote deposition on the liner surface. Faster warm-up times translate to consistent appliance performance right after ignition.

Sizing and Installation Practicalities

• Specified diameter measures 6 inches across with a full 35-foot run, designed to serve two-story residential chimney systems
• Flexible profile slides through existing passageways without requiring access hatches or masonry removal
• Insulated outer layer maintains safer exterior wall temperatures to protect nearby combustible framing and siding
• Pre-folded delivery format enables straightforward single-person deployment down the flue opening

Connecting this insulated flexliner restores proper venting capacity while preserving your existing hearth structure. Route the exposed end to your selected appliance collar, secure the joint with rated high-temperature sealant, and confirm steady draft movement before operating your heating unit.