Liners & Pipes

Liners & Pipes

A chimney flue liner or flue pipe is used to line the inside of a chimney or to vent a insert of stove. The liner or pipe serves several important functions, including protecting the chimney from the heat and corrosive gases produced by the fireplace or wood stove, and providing a smooth surface that allows smoke and other combustion byproducts to easily pass through or to the chimney.

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  • DirectVent Pro Wall Strap (4" X 6 5/8") DirectVent Pro Wall Strap (4" X 6 5/8"), alternate image 1
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    DirectVent Pro Wall Strap (4" X 6 5/8")

    $16.59
    Use to support vent pipe. Provides a 1” clearance.  It's recommend to install Wall Straps at 4-foot intervals on vertical runs.DirectVent Pro Additional Info: DirectVent Pro offers superior performance with its tight inner connections, eliminating the...
    SKU:
    279880
    Weight:
    0.69 LBS
    $16.59
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    $16.59
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  • 7" X 11" Rec Bottom Plate 18X18
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    7" X 11" Rec Bottom Plate 18X18

    $104.99
    Designed for seamless integration with a 7" x 11" rectangular liner, our bottom plate features an 18-gauge 304 stainless steel base measuring 18" x 18" and a 1-inch high collar crafted from 24-gauge steel. This design guarantees solid support and a...
    SKU:
    NC711BP1818
    Weight:
    3.50 LBS
    $104.99
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    $104.99
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  • 7" X 11" Rec Bottom Plate 13X18
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    7" X 11" Rec Bottom Plate 13X18

    $79.99
    Crafted for seamless integration with a 7" x 11" rectangular liner, our bottom plate is an 18-gauge 304 stainless steel base measuring 13" x 18" and a 1-inch high collar made from 24-gauge steel. This ensures proper support and a secure fit for your...
    SKU:
    NC711BP1318
    Weight:
    3.50 LBS
    $79.99
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    $79.99
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  • DirectVent Pro Horizontal Square Termination Cap (4"x6 5/8") DirectVent Pro Horizontal Square Termination Cap (4"x6 5/8"), alternate image 1
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    DirectVent Pro Horizontal Square Termination Cap (4"x6 5/8")

    $284.99
    Use for standard and high-wind through-the-wall termination. Check installation instructions for restrictions on horizontal cap terminations, such as minimum distance from windows and doors. Available in aluminum, stainless steel (S), and copper (C)...
    SKU:
    279840
    Weight:
    5.00 LBS
    $284.99
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    $284.99
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  • 7" X 11" Rec Bottom Plate 13X13
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    7" X 11" Rec Bottom Plate 13X13

    $70.99
    Designed for seamless integration with a 7" x 11" rectangular liner, our bottom plate features an 18-gauge 304 stainless steel base measuring 18" x 18" and a 1-inch high collar crafted from 24-gauge steel. This design guarantees solid support and a...
    SKU:
    NC711BP
    Weight:
    3.00 LBS
    $70.99
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    $70.99
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  • DirectVent Pro Low Profile Termination Cap (4" X 6 5/8") DirectVent Pro Low Profile Termination Cap (4" X 6 5/8"), alternate image 1
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    DirectVent Pro Low Profile Termination Cap (4" X 6 5/8")

    $129.99
    Use this cap to terminate a DirectVent Pro installation. Use for vertical terminations only. Check the appliance manufacturer’s instructions to determine which caps are approved for use with their appliance. Available in aluminum.DirectVent Pro...
    SKU:
    279800
    Weight:
    2.00 LBS
    $129.99
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    $129.99
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  • 6" X 10" Rec Bottom Plate 18X18
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    6" X 10" Rec Bottom Plate 18X18

    $104.99
    Designed for seamless integration with a 6" x 10" rectangular liner, the bottom plate features an 18" x 18" base constructed from 18-gauge 304 stainless steel and a 1-inch high collar made from 24-gauge steel. This durable construction ensures excellent...
    SKU:
    NC610BP1818
    Weight:
    3.50 LBS
    $104.99
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    $104.99
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  • 6" Id Ov 5" Od To 6" Rd Rigid Adapter
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    6" Id Ov 5" Od To 6" Rd Rigid Adapter

    $128.99
    The 5"oval end of the adapter is designed to accept ovalized inside diameter (ID) liners. The crimped 6" round bottom end fits seamlessly into stovepipe or the stove's collar. Made with 316 stainless steel for durability and corrosion resistance.
    SKU:
    NC65OVRDL
    Weight:
    2.00 LBS
    $128.99
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    $128.99
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  • DirectVent Pro Horizontal Termination Kit A (Black)
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    DirectVent Pro Horizontal Termination Kit A (Black)

    $202.73
    Kit includes: 90° black Elbow, Ceiling Support/Wall Thimble Cover, 24” black Pipe, and 8 1⁄2” black Pipe Extension. Termination cap not included. For 4” x 6 5⁄8” direct vent.Choose termination cap and appropriate pipe length(s) for the horizontal run...
    SKU:
    279710
    Weight:
    16.06 LBS
    $202.73
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    Price:
    $202.73
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  • 6" X 10" Rec Bottom Plate 13X18
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    6" X 10" Rec Bottom Plate 13X18

    $79.99
    Engineered for flawless integration with a 6" x 10" rectangular liner, the bottom plate includes a 13" x 18" base made from 18-gauge 304 stainless steel and a 1-inch high collar crafted from 24-gauge steel. This sturdy construction offers excellent...
    SKU:
    NC610BP1318
    Weight:
    3.50 LBS
    $79.99
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    $79.99
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  • 6" Id Liner  Ov 5" To 6" Rd Adapter
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    6" Id Liner Ov 5" To 6" Rd Adapter

    $110.99
    This Oval to Round adapter is to attach a 5" oval to a 6" round. The ovalized end is designed to accept ovalized inside diameter (ID) liners, while the round bottom end is crimped for easy fitting. Made with 304 Stainless Steel.
    SKU:
    NC65OVRD
    Weight:
    2.00 LBS
    $110.99
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    $110.99
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  • DirectVent Pro Ceiling Firestop (4" X 6 5/8") DirectVent Pro Ceiling Firestop (4" X 6 5/8"), alternate image 1
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    DirectVent Pro Ceiling Firestop (4" X 6 5/8")

    $29.99
    Required for multi-story vertical installations at the second floor and any subsequent floors.DirectVent Pro Additional Info:DirectVent Pro offers superior performance with its tight inner connections, eliminating the need for gaskets or sealants (unless...
    SKU:
    279630
    Weight:
    0.96 LBS
    $29.99
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    Price:
    $29.99
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  • 5.75" X 9.5" Rec Bottom Plate 18X18
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    5.75" X 9.5" Rec Bottom Plate 18X18

    $104.99
    Crafted for seamless integration with a 5.75" x 9.5" rectangular liner, the bottom plate features an 18" x 18" base made from 18-gauge 304 stainless steel and a 1-inch high collar constructed from 24-gauge steel. This design ensures support and a secure...
    SKU:
    NC5.759.5BP1818
    Weight:
    3.50 LBS
    $104.99
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    Qty in Cart: 0
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    Price:
    $104.99
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  • SmartFlex Insert Adapter - 5" - 304 SS SmartFlex Insert Adapter - 5" - 304 SS, alternate image 1
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    SmartFlex Insert Adapter - 5" - 304 SS

    $138.99
    National Chimney offers a unique insert adapter that enables both front-to-back and side-to-side adjustments within the firebox. Its two-piece design allows for easy sliding to adjust the center-to-center distance of the collars, accommodating a...
    SKU:
    NC5IA
    Weight:
    5.00 LBS
    $138.99
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    $138.99
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  • 8" DVL Adapter 8" DVL Adapter, alternate image 1
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    8" DVL Adapter

    $119.99
    Use to connect from double-wall DVL to DuraTech, DuraPlus, DuraPlus HTC, and DuraLiner for a through-the-wall or ceiling support installation. Required for proper connection. Provides a strong mechanical connection. Painted black. Adapter will work with...
    SKU:
    296008
    Weight:
    2.00 LBS
    $119.99
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    Price:
    $119.99
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  • 5.75" X 9.5" Rec Bottom Plate 13X18
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    5.75" X 9.5" Rec Bottom Plate 13X18

    $79.99
    Designed for perfect integration with a 5.75" x 9.5" rectangle liner, the rectangle bottom plate features a 13" x 18" base constructed from 18-gauge 304 stainless steel and a 1-inch high collar made from 24-gauge steel. This construction provides support...
    SKU:
    NC5.759.5BP1318
    Weight:
    3.50 LBS
    $79.99
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    Qty in Cart: 0
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    Price:
    $79.99
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  • Masonry Chimney Conversion Kit
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    Masonry Chimney Conversion Kit

    $194.59
    Kit  includes: Cap Adapter, 18” x 18” Flashing, Round Ceiling Support/Wall Thimble Cover, Retro Connector.  For 4” x 6 5⁄8” direct vent. Termination Cap and 4” flex are sold separately. 13” 6/”Use with 4” x 6 5⁄8” direct vent gas stoves.  Use existing...
    SKU:
    279601
    Weight:
    6.60 LBS
    $194.59
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    $194.59
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  • 6" DVL Adapter
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    6" DVL Adapter

    $79.99
    6" DVL/DuraBlack Chimney Adapter/ with trim is used to connect from double-wall DVL and/or single-wall DuraBlack to DuraTech, DuraPlus, DuraPlus HTC, and DuraLiner.DVL Additional Info:The DVL Double-Wall Stovepipe System is designed to complete the...
    SKU:
    296006
    Weight:
    2.00 LBS
    $79.99
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    Qty in Cart: 0
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    Price:
    $79.99
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  • 5.75" X 9.5" Rec Bottom Plate
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    5.75" X 9.5" Rec Bottom Plate

    $70.99
    Engineered for seamless integration with a 5.75" x 9.5" rectangle liner, the rectangle bottom plate has a 13" x 13" base made from 18-gauge 304 stainless steel and a 1-inch high collar crafted from 24-gauge steel. This design ensures solid support and a...
    SKU:
    NC5.759.5BP
    Weight:
    3.50 LBS
    $70.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $70.99
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  • DirectVent Pro Storm Collar (4" X 6 5/8") DirectVent Pro Storm Collar (4" X 6 5/8"), alternate image 1
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    DirectVent Pro Storm Collar (4" X 6 5/8")

    $13.59
    The DirectVent Pro Storm Collar is designed to ensure a weather-tight seal between the vent pipe and the flashing, providing added protection against moisture and the elements.DirectVent Pro Additional Info: DirectVent Pro offers superior performance...
    SKU:
    279530
    Weight:
    0.46 LBS
    $13.59
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    Qty in Cart: 0
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    Price:
    $13.59
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