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AL29-4C Liner & Components

Our AL29-4C stainless steel chimney liner and components are designed for extreme resistance to corrosion, pitting and stress corrosion cracking. AL29-4C is typically used with high efficiency furnace and venting designs. All of our components feature the quick-connect band clamp system for a secure and easy installation.

High efficiency appliance chimney pipeRock-Flex AL29-4C Furnace, Boiler, and Corn Pipe and Components

Since 1983, furnace and vent manufacturers have specified AL29-4C alloy in high efficiency furnace and venting designs (typically 86% or greater efficiency). High efficiency furnaces extract so much heat from the exhaust that the highly acidic water vapor in the exhaust condenses. This moisture accumulation is corrosive and damaging to standard stainless liners and chimneys.

APPLICATIONS: High efficiency boilers, oil, gas, furnace, and corn burning appliances

AL29-4C is a stainless steel alloy designed for extreme resistance to corrosion, pitting and stress corrosion cracking. This resistance makes it an ideal choice for venting the corrosive condensation in high efficiency furnaces. Its low alloy content and corrosion resistance makes it an economical choice, and by using AL 29-4C, manufacturers have benefited by being able to extend their warranties.

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  1. Gas Oil Rigid Pipe AL29-4C
    Gas Oil Rigid Pipe AL29-4C
    As low as $69.99

    2 ft. sections of AL294C, the perfect pipe to get you from your appliance to the Tee. Plus, it will last a lifetime.

  2. Round Pulling Cone
    Round Pulling Cone
    As low as $59.99

    The pulling cone makes the job of installing a chimney liner easier. Used to help pull the liner through the chimney. Quick connect & disconnect from our Round stainless steel chimney liner.

  3. Premium Top Plate
    Premium Top Plate
    As low as $51.99

    Our Premium Top Plate is laser welded & sloped to allow rain and snow to run off. No clamps, flashing or storm collars needed. Just pull the chimney liner through the collar & securely tighten.

  4. Terra-Cotta Top Plate
    Terra-Cotta Top Plate
    Rating:
    100%
    As low as $67.99

    Our Terra-Cotta Top Plate fastens right on the terra-cotta flue tile. The top plate pressure screws to the tile like a rain cap and gives a great no hassle, finished look.

  5. Square Chimney Rain Cap, Top Plate Mount
    Square Chimney Rain Cap, Top Plate Mount
    Rating:
    90%
    As low as $65.99

    Square quick connect chimney rain cap with screen. Just fasten down the quick connect clamp and you're done! Use only with the collar of the flex liner Top Plate or Chase Cover.

5 Items

per page
Set Descending Direction