Chimney Liners & Kits
Chimney Liners are important for many reasons. Most importantly, they protect the house from heat transfer to combustibles. Whether you need a liner for a stove, fireplace or insert, Lindemann Chimney has the right option. Aluminum and stainless steel liners both come with a manufacturer’s warranty. Smart-flex liner is one of our most durable lining systems. It can be used to reline existing chimneys or in new construction. It’s a flexible liner featuring corrugated construction allowing it to both expand and contract during heat up and cool down periods. Liner kits are also available and come complete with instructions. Contact us at 1-800-722-7230 of you have any questions.
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- Price
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6" Id Liner Ov 5" To 6" Rd Adapter
$105.84This 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
$105.84 -
5.75" X 9.5" Rec Bottom Plate 18X18
$99.65Crafted 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
$99.65 -
SmartFlex Insert Adapter - 5" - 304 SS
$132.84National 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
$132.84 -
5.75" X 9.5" Rec Bottom Plate 13X18
$75.66Designed 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
$75.66 -
5.75" X 9.5" Rec Bottom Plate
$67.81Engineered 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
$67.81 -
13" Bottom Plate 18X18
$75.87Crafted 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 inch high. It provides reliable support, secures your...- SKU:
- NC13BP1818
- Weight:
- 3.50 LBS
$75.87 -
11" X 11" Sq Bottom Plate
$75.66Designed 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 offers solid support, ensures a secure fit for your chimney...- SKU:
- NC1111BP1318
- Weight:
- 3.50 LBS
$75.66 -
10" X10" Sq Bottom Plate 1818
$99.65Designed to connect to a 10" x 10" square liner, our Square Bottom Plate features a sturdy 18-gauge 304 stainless steel base plate measuring 18" x 18" and a 1-inch high collar crafted from 24-gauge steel. This construction ensures support, a secure fit,...- SKU:
- NC1010BP1818
- Weight:
- 3.50 LBS
$99.65 -
10" X10" Sq Bottom Plate 1318
$75.66Crafted to connect seamlessly with a 10" x 10" square liner, our Square Bottom Plate includes a sturdy 18-gauge 304 stainless steel 13" x 18" base plate and a 1-inch high collar made from 24-gauge steel. It provides support and ensures a secure fit for...- SKU:
- NC1010BP1318
- Weight:
- 3.50 LBS
$75.66 -
10"X10" Sq Bottom Plate
$59.77Designed to seamlessly connect with a square 10" x 10" liner, the Square Bottom Plate, featuring a sturdy 18-gauge 304 Stainless Steel 13" x 13" base plate and a 1-inch high collar crafted from 24-gauge steel. It ensures support and a secure fit for your...- SKU:
- NC1010BP
- Weight:
- 3.00 LBS
$59.77 -
8" Id Ov To 7" To 8" Rd Adapter 316 Stainless
$135.78This adapter changes a 7" oval to an 8" round connection, tailored for ovalized liners with inside diameter (ID). It includes a crimped round end for straightforward installation and is crafted from durable 316 stainless steel.- SKU:
- NC87OVRDL
- Weight:
- 2.00 LBS
$135.78 -
8" Id Ov To 7" To 8" Rd Adapter
$117.54Converts a 7" oval to an 8" round connection. Designed for ovalized liners with inside diameter (ID), featuring a crimped round end for easy installation. Crafted from robust 304 stainless steel.- SKU:
- NC87OVRD
- Weight:
- 2.00 LBS
$117.54 -
8" Id Ov To 6" To 8" Rd Adapter 316 Stainless
$135.78This adapter changes a 6" oval to an 8" round connection. The oval end is made to fit ovalized inside diameter (ID) liners, and the crimped round end ensures easy installation. Constructed from 316 stainless steel.- SKU:
- NC86OVRDL
- Weight:
- 3.00 LBS
$135.78 -
8" Id Ov To 6" To 8" Rd Adapter
$117.54This adapter transitions a 6" oval to an 8" round connection. The oval end is designed to fit ovalized Inside diameter (ID) liners, while the crimped round end allows for easy installation. Built with 304 stainless steel.- SKU:
- NC86OVRD
- Weight:
- 3.00 LBS
$117.54 -
7" Id-5" Oval To 7" Rd Adapter
$129.33This adapter transitions a 5" oval to a 7" round connection. The oval end fits ovalized inside diameter (ID) liners, and the crimped round end allows for easy installation. Made from durable 316 stainless steel.- SKU:
- NC75OVRDL
- Weight:
- 3.00 LBS
$129.33 -
7" Id Ov 5" Od To 7" Rd Rigid Adapter
$113.39This rigid adapter converts a 5" oval to a 7" round connection. The oval end is designed to accommodate ovalized inside diameter (ID) liners, while the crimped round end ensures easy fitting. Constructed from 304 stainless steel.- SKU:
- NC75OVRD
- Weight:
- 3.00 LBS
$113.39 -
TherMix Insulation
$75.39 - $75.99TherMix, a ready-mix, Vermiculite-based masonry material. TherMix cures into a lightweight, semi-hard mass that forms a thermal insulation barrier to keep flue gases warm and exterior chimney surface temperatures within safe limits. When poured into the...- SKU:
- TherMix Insulation
- Weight:
- 42.00 LBS
$75.39 - $75.99 -
SmartFlex Insert Boot
$129.69 - $146.28The SmartFlex Insert Boots are 24 gauge, 304 stainless steel and designed to attach rigid pipe or flexible liner with a coupler to the exhaust vents of most inserts. These insert boots come with a variety of opening sizes and measure 10" W x 16" L x...- SKU:
- SmartFlex Insert Boot
- Weight:
- 4.00 LBS
$129.69 - $146.28 -
SmartFlex 304 Reducer-Increaser
$35.07 - $59.02Stainless steel increaser/reducer adapt pipes of many different sizes. A variety of diameters are available for jobs of all shapes and sizes and are made of 304 stainless steel.- SKU:
- SmartFlex 304 Reducer-Increaser
- Weight:
- 2.00 LBS
$35.07 - $59.02 -
SmartFlex Stove Adapter, 304 Stainless Steel
$22.09 - $35.17The SmartFlex Stove Adapter is made with 304, stainless steel and allows you to quickly and easily attach a stainless steel chimney liner to the fireplace insert using its "EZ" band clamp. This stove adapter can also connect to a stainless steel...- SKU:
- SmartFlex Stove Adapter, 304 Stainless Steel
- Weight:
- 0.00 LBS
$22.09 - $35.17