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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6" Id Liner Ov 5" To 6" Rd Adapter
$122.91This 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...- SKU:
- NC65OVRD
- Weight:
- 2.00 LBS
$122.91 -
DirectVent Pro Ceiling Firestop (4" X 6 5/8")
$20.66Required 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...- SKU:
- 279630
- Weight:
- 0.96 LBS
$20.66 -
5.75" X 9.5" Rec Bottom Plate 18X18
$115.25Crafted 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...- SKU:
- NC5.759.5BP1818
- Weight:
- 3.50 LBS
$115.25 -
SafeFlex Insert Adapter - 5" - 304 SS
$153.61National 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...- SKU:
- NC5IA
- Weight:
- 5.00 LBS
$153.61 -
8" DVL Adapter
$117.55Use 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...- SKU:
- 296008
- Weight:
- 3.99 LBS
$117.55 -
5.75" X 9.5" Rec Bottom Plate 13X18
$87.48Designed 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...- SKU:
- NC5.759.5BP1318
- Weight:
- 3.50 LBS
$87.48 -
Masonry Chimney Conversion Kit
$434.60Kit 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...- SKU:
- 279601
- Weight:
- 7.60 LBS
$434.60 -
6" DVL Adapter
$103.056" 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...- SKU:
- 296006
- Weight:
- 3.99 LBS
$103.05 -
5.75" X 9.5" Rec Bottom Plate
$78.41Engineered 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...- SKU:
- NC5.759.5BP
- Weight:
- 3.50 LBS
$78.41 -
DirectVent Pro Storm Collar (4" X 6 5/8")
$17.51The 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...- SKU:
- 279530
- Weight:
- 0.47 LBS
$17.51 -
13" Bottom Plate 18X18
$87.73Crafted for easy integration with a 13" diameter round liner, our Square Bottom Plate is made with a sturdy 18-gauge 304 stainless steel 18" x 18" base plate and a 24-gauge steel collar standing 1...- SKU:
- NC13BP1818
- Weight:
- 3.50 LBS
$87.73 -
DVL Increaser - 6" to 8"
$157.26Use to increase from a smaller appliance flue outlet to larger diameter chimney or stovepipe.DVL Additional Info:The DVL Double-Wall Stovepipe System is designed to complete the venting process when...- SKU:
- 299806
- Weight:
- 3.99 LBS
$157.26 -
DirectVent Pro Cathedral Ceiling Support Box (4" X 6 5/8")
$168.88Use to pass through ceiling and support pipe. May be used on vaulted or flat ceilings. Painted black. Trim and clamp included.DirectVent Pro Additional Info:DirectVent Pro offers superior performance...- SKU:
- 279410
- Weight:
- 6.30 LBS
$168.88 -
DVL Oval to Round Adapter-8"
$206.50Use on Vermont Casting appliances with oval flue collars to adapt to round pipe.DVL Additional Info:The DVL Double-Wall Stovepipe System is designed to complete the venting process when paired with...- SKU:
- 295408
- Weight:
- 4.78 LBS
$206.50 -
DirectVent Pro Ceiling Support/Wall Thimble Cover(4"x6 5/8")
$109.22Use as a decorative cover for horizontal (through-wall) installations or for flat ceiling installations. Fits over the Wall Thimble face plate. Comes with an insulation ring to reduce air...- SKU:
- 279400
- Weight:
- 2.20 LBS
$109.22 -
11" X 11" Sq Bottom Plate
$87.48Designed to connect with an 11" x 11" square liner, our Square Bottom Plate features an 18-gauge 304 stainless steel 13" x 18" base plate and a 1-inch high collar crafted from 24-gauge steel. It...- SKU:
- NC1111BP1318
- Weight:
- 3.50 LBS
$87.48 -
DVL Oval to Round Adapter-6"
$206.50Use on Vermont Casting appliances with oval flue collars to adapt to round pipe.DVL Additional Info:The DVL Double-Wall Stovepipe System is designed to complete the venting process when paired with...- SKU:
- 295406
- Weight:
- 3.99 LBS
$206.50 -
DirectVent Prairie Co-Linear Kit & Flex - (2) 3" x 35' Flex
$653.64Designed for use when installing a direct vent co-linear insert into a masonry chimney.Kit includes:Prairie Termination Cap; and two pieces of 3" x 35' Aluminum Flex lengths - one Red (exhaust), and...- SKU:
- 279236
- Weight:
- 22.00 LBS
$653.64 -
DirectVent Pro High-Wind Co-Linear Kit & Flex (3")
$595.83Use when installing a direct vent, co-linear insert into a masonry chimney. Kit includes:High-Wind Termination Cap and two pieces of 3" x 35' Aluminum Flex lengths - one Red (exhaust), and one Green...- SKU:
- 279235
- Weight:
- 23.30 LBS
$595.83 -
DuraBlack Slip Increaser with Trim
$82.64Use to adapt from 6” DuraBlack to 8” DuraTech, DuraPlus, or DuraLiner at the ceiling support box or finishing collar. Adds 5” - 15” of length. Note: When installed with DuraTech Premium, DuraTech or...- SKU:
- 289986
- Weight:
- 3.24 LBS
$82.64