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The Z-FLEX 2zr321f0604 is a rigid stainless steel chimney liner section designed for reliable flue gas venting in residential and commercial heating systems. Measuring 6 inches in diameter and 48 inches in length, this liner section handles the high-temperature, corrosive exhaust produced by gas, oil, and solid-fuel appliances. Stainless steel construction resists oxidation and flue-gas condensate, maintaining structural integrity across a wide range of operating conditions. Licensed HVAC technicians and chimney professionals install this liner as part of a complete rigid liner system to restore or upgrade flue capacity and meet current venting code requirements.
This liner section is suited for residential chimneys and light commercial applications where a rigid liner system is required or preferred over flexible alternatives. Typical installations include relining an existing masonry chimney to serve a gas furnace, boiler, or water heater, as well as new construction venting projects. The 6-inch diameter accommodates common residential appliance flue-output sizes. Its silver stainless steel finish is compatible with standard chimney liner hardware, couplings, and termination components used in complete rigid liner assemblies.
Designed as an OEM-style replacement or new-installation component for rigid stainless steel chimney liner systems used with residential and commercial heating appliances.
Installation of chimney liner systems should be performed by a qualified HVAC technician or licensed chimney professional in accordance with NFPA 211 and local building codes. Shut down and allow the heating appliance and flue to cool completely before beginning liner work. Ensure all liner sections, couplings, and termination components are compatible in diameter and material before assembly. Do not operate the connected appliance until the liner system is fully installed, inspected, and any required permits are closed.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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