National Chimney: The Best in the Industry

National Chimney: The Best in the Industry

/national-chimney/

Founded in 1992, National Chimney manufactures high-quality chimney care supplies and accessories. National Chimney is the premier manufacturer of chimney stainless steel liners and other chimney components. Made in the USA, National Chimney products are expertly designed and manufactured. Our selection of National Chimney products include the M-Flex stainless steel chimney liner kits in various diameters.

M-Flex 3 inch Diameter Chimney Liner Basic Kit
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel Thickness:  .006 Inches Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Stove Adapter | Liner         Free Shipping   | Ships in 2-3 Business Days     | Why Buy From Us?
BrandNational Chimney Material316 Stainless Steel
M-Flex 4 inch Diameter Chimney Liner Basic Kit
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel Thickness:  .006 Inches Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Stove Adapter | Liner         Free Shipping   | Ships Within 2-3 Business Days
BrandNational Chimney Material316 Stainless Steel
M-Flex 5 inch Diameter Chimney Liner Basic Kit
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel Thickness:  .006 Inches Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Stove Adapter | Liner         Free Shipping   | Ships Within 1 Week     | Why Buy From Us?
BrandNational Chimney Material316 Stainless Steel
M-Flex 5.5 inch Diameter Chimney Liner Basic Kit
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel Thickness:  .006 Inches Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Stove Adapter | Liner         Free Shipping   | Ships in 1 Week     | Why Buy From Us?
BrandNational Chimney Material316 Stainless Steel
M-Flex 6 inch Diameter Chimney Liner Basic Kit
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel Thickness:  .006 Inches Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Stove Adapter | Liner         Free Shipping   | Ships Within 2-3 Business Days
BrandNational Chimney Material316 Stainless Steel
5" M-Flex 316 Stainless Steel Standard Liner Kit With Tee
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel Thickness:  .006 Inches Inside Diameter: 5 Inch Construction: Single Wall Length: 15 ft | 20 ft | 25 ft | 30 ft | 35 ft Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Tee And Cap | Liner All Fuel Tested:  Gas | Pellet | Coal | Oil | Wood Warranty:  Lifetime Warranty         Free Shipping   | Ships in 1 Week     | Why Buy From Us?
BrandNational Chimney Material316 Stainless Steel
5.5 inch M-Flex 316 Stainless Steel Smoothwall Basic Liner Kit
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel - Smoothwall Thickness:  .006 Inches  Inside Diameter:  4 Inch  Construction:  Single Wall Length:  15 ft | 20 ft | 25 ft | 30 ft | 35 ft Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Stove Adapter | Liner         Free Shipping   | Ships Within 2-3 Business Days     | Why Buy From Us?
BrandNational Chimney Material316 Stainless Steel
M-Flex 7 inch Diameter Chimney Liner Basic Kit
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel Thickness:  .006 Inches Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Stove Adapter | Liner         Free Shipping   | Ships Within 1 Week     | Why Buy From Us?
BrandNational Chimney Material316 Stainless Steel
6 inch M-Flex 316 Stainless Steel Smoothwall Basic Liner Kit
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel - Smoothwall Thickness:  .006 Inches  Inside Diameter:  6 Inch  Construction:  Single Wall Length:  15 ft | 20 ft | 25 ft | 30 ft | 35 ft Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Stove Adapter | Liner         Free Shipping   | Ships Within 2-3 Business Days     | Why Buy From Us?
BrandNational Chimney Material316 Stainless Steel
6" M-Flex 316 Stainless Steel Standard Liner Kit With Tee
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel Thickness:  .006 Inches Inside Diameter: 6 Inch Construction: Single Wall Length: 15 ft | 20 ft | 25 ft | 30 ft | 35 ft Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Tee And Cap | Liner All Fuel Tested:  Gas | Pellet | Coal | Oil | Wood Warranty:  Lifetime Warranty         Free Shipping   | Ships in 1 Week     | Why Buy From Us?
BrandNational Chimney Material316 Stainless Steel
M-Flex 8 inch Diameter Chimney Liner Basic Kit
Free shipping
Accepts Fuel Type:  All Material: 316 America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Stove Adapter | Liner          Free Shipping   | Ships in 2-3 Business Days
BrandNational Chimney Material316 Stainless Steel
7" M-Flex 316 Stainless Steel Standard Liner Kit With Tee
Free shipping
Stainless Steel Thickness:  .006 Inches Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of Accepts Fuel Type:  All Material: 316 Stainless Steel Thickness:  .006 Inches Inside Diameter: 7 Inch Construction: Single Wall Length: 15 ft | 20 ft | 25 ft | 30 ft | 35 ft Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Tee And Cap | Liner All Fuel Tested:  Gas | Pellet | Coal | Oil | Wood Warranty:  Lifetime Warranty         Free Shipping   | Ships in 1 Week     | Why Buy From Us?
BrandNational Chimney Material316 Stainless Steel
8" M-Flex 316 Stainless Steel Standard Liner Kit With Tee
Free shipping
Accepts Fuel Type:  All Material: 316 Stainless Steel Thickness:  .006 Inches Inside Diameter: 8 Inch Construction: Single Wall Length:  15 ft | 20 ft | 25 ft | 30 ft | 35 ft Certifications:  UL 1777 Listed and Tested | Chimney Safety Institute of America Accepted Product Included:  Top Kit ( Rain Cap and a 13" x 13" Top Plate ) | Tee And Cap Adapter | Liner All Fuel Tested:  Gas | Pellet | Coal | Oil | Wood Warranty:  Lifetime Warranty         Free Shipping   | Ships Within 1 Week     | Why Buy From Us?
BrandNational Chimney Material316 Stainless Steel
Price
$
$
  • $387
  • $871
Material
Diameter