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 High Wind Termination Cap (4" X 6 5/8")
DirectVent Pro
$142.15Use for vertical terminations only. Provides improved performance in high wind conditions. Available in aluminum.- SKU:
- 279910
- Weight:
- 2.00 LBS
$142.15 -
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")
DirectVent Pro
$27.40Use for supporting vent pipe between offsets.- SKU:
- 279890
- Weight:
- 0.89 LBS
$27.40 -
DirectVent Pro Wall Strap (4" X 6 5/8")
DirectVent Pro
$37.59Use to support vent pipe. Provides a 1” clearance. It's recommend to install Wall Straps at 4-foot intervals on vertical runs.- SKU:
- 279880
- Weight:
- 0.69 LBS
$37.59 -
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")
DirectVent Pro
$352.63Use 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).Cap...- SKU:
- 279840
- Weight:
- 5.00 LBS
$352.63 -
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")
DirectVent Pro
$168.41Use 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.- SKU:
- 279800
- Weight:
- 2.00 LBS
$168.41 -
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:
- 0.00 LBS
$128.99 -
DirectVent Pro Horizontal Termination Kit A (Black)
DirectVent Pro
$535.65Kit 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 to complete...- SKU:
- 279710
- Weight:
- 16.06 LBS
$535.65 -
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:
- 0.00 LBS
$110.99 -
DirectVent Pro Ceiling Firestop (4" X 6 5/8")
DirectVent Pro
$20.83Required for multi-story vertical installations at the second floor and any subsequent floors.- SKU:
- 279630
- Weight:
- 0.96 LBS
$20.83 -
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
SmartFlex
$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 -
8" DVL Adapter
DVL
$104.49Use 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
$104.49 -
5.75" X 9.5" Rec Bottom Plate 13X18
$79.99Designed 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 -
Masonry Chimney Conversion Kit
$440.71Masonry Chimney Conversion Kit- The kit includes Cap Adapter, 18"x18" Flashing, Wall Thimble Cover and Retro Adapter.- SKU:
- 279601
- Weight:
- 6.60 LBS
$440.71