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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4"X90 Deg Id Fixed Elbow 304
$58.99The 4" Inner Diameter x 90 Degree Fixed Elbow, crafted from 304 stainless steel, is tailored for ID flex pipe installations. It supports all fuel applications, ensuring reliable exhaust flow and providing the necessary versatility for fixed...- SKU:
- NC490FLEXSSF
- Weight:
- 2.00 LBS
$58.99 -
8" X 12" Rec Bottom Plate 18X18
$104.99Crafted for effortless integration with an 8" x 12" rectangular liner, our bottom plate showcases an 18-gauge 304 stainless steel base measuring 18" x 18" and a 1-inch high collar made from 24-gauge steel. This ensures support and a secure chimney system...- SKU:
- NC812BP1818
- Weight:
- 3.50 LBS
$104.99 -
30 Degree Elbow (galvanized) 5" x 8" Direct Vent
$164.79Use to offset obstructions as needed. Fully unitized, twist-lock construction. Elbows swivel, allowing the lock to remain fully engaged while aligning to the desired direction. The angle will remain fixed at 30°.DirectVent Pro Additional Info:DirectVent...- SKU:
- 279330
- Weight:
- 0.61 LBS
$164.79 -
DirectVent Pro High Wind Termination Cap (4" X 6 5/8")
$119.47Use for vertical terminations only. Provides improved performance in high wind conditions. Available in aluminum.DirectVent Pro Additional Info:DirectVent Pro offers superior performance with its tight inner connections, eliminating the need for gaskets...- SKU:
- 279910
- Weight:
- 2.00 LBS
$119.47 -
8" X 12" Rec Bottom Plate 13X18
$79.99Designed for seamless integration with an 8" x 12" rectangular liner, our bottom plate features an 18-gauge 304 stainless steel base measuring 13" x 18" and a 1-inch high collar crafted from 24-gauge steel. This design guarantees solid support and a...- SKU:
- NC812BP1318
- Weight:
- 3.50 LBS
$79.99 -
DirectVent Pro Elbow Strap (4" X 6 5/8")
$22.65Use for supporting vent pipe between offsets.DirectVent Pro Additional Info:DirectVent Pro offers superior performance with its tight inner connections, eliminating the need for gaskets or sealants (unless required by the appliance manufacturer). The...- SKU:
- 279890
- Weight:
- 0.89 LBS
$22.65 -
DirectVent Pro Wall Strap (4" X 6 5/8")
$29.86Use 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
$29.86 -
7" X 11" Rec Bottom Plate 18X18
$104.99Designed 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 -
7" X 11" Rec Bottom Plate 13X18
$79.99Crafted 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 -
DirectVent Pro Horizontal Square Termination Cap (4"x6 5/8")
$293.54Use 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
$293.54 -
7" X 11" Rec Bottom Plate 13X13
$70.99Designed 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 -
DirectVent Pro Low Profile Termination Cap (4" X 6 5/8")
$133.89Use 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
$133.89 -
6" X 10" Rec Bottom Plate 18X18
$104.99Designed 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 -
6" Id Ov 5" Od To 6" Rd Rigid Adapter
$128.99The 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 -
DirectVent Pro Horizontal Termination Kit A (Black)
$442.89Kit 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
$442.89 -
6" X 10" Rec Bottom Plate 13X18
$79.99Engineered 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 -
6" Id Liner Ov 5" To 6" Rd Adapter
$110.99This 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 -
DirectVent Pro Ceiling Firestop (4" X 6 5/8")
$30.89Required 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
$30.89 -
5.75" X 9.5" Rec Bottom Plate 18X18
$104.99Crafted 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 -
SmartFlex Insert Adapter - 5" - 304 SS
$138.99National 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