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Rigid Chimney Liners

Looking for a better option?

Stainless Steel Rigid Pipe is often forgotten about, but can actually a better option than you thought.

Stainless Rigid Flue Pipes and their components are available in 2 high quality 24 gauge grades of stainless steel: 304L for wood applications and 316L which is multi-fuel, for gas, oil, wood, corn, coal, pellet, to name a few. This pipe is available in round sections, but can be custom shaped into an Oval, Square or Rectangle. The ends are expanded for better flow and easy to connect, no more crimped ends. All seams are laser welded, so gases and moisture stays inside and the pipes stays perfectly round. Plus the interior of the pipe is smooth typically giving you up to a 20% better draft for gas burning appliances and a 15% better draft for oil appliances! All stainless rigid pipes are UL listed in the US and Canada. These stainless pipes can be used for fireplaces, stoves, boilers and furnaces.

Getting tired of replacing your black stove pipe every few years, want to upgrade to a more modern or elegant look? Nothing does it better than the Stainless Steel look, with a lifetime warranty. Whether you are running it through your brick chimney or across your room, you will have the peace of mind and protection that you'll be safe. Rigid chimney pipe has an 18" clearance to combustibles and should not be confused with Class A Double Wall Insulated pipe, which is used in Chimney Chases and going through walls, ceilings, attics and roofs. Rigid liners are best suited for straight chimneys without offsets or dampers.

Insulating metal liners is always recommended, and Rigid Flue Pipe is no exception, with the UL Listed "Snap Lock" insulation, it's just that easy. Slide it over the pipe and snap it together, the 2' sections make it simple to insulate. Insulating the pipes not only keeps the gases warmer, but can reduce creosote or condensation, in gas appliances.

Rigid Chimney Liner Features

  • Available in High-Quality Stainless Steel 316L and 304L Alloys
  • All Components will match the stainless 316L or 304L pipe material
  • Available in 3" thru 16" diameter. Larger custom diameter pipes are available.
  • Available in Round and Custom Shaped to Oval, Rectangle and Square
  • Expanded ends mean better flow
  • Smooth LASER-WELDED Seams seal gases and moisture completely and keeps the pipe perfectly round to guarantee a perfect fit every time
  • Smooth interior, the most efficient venting due to decreased turbulence
  • UL & ULC listed
  • Lifetime Warranty
  • Insulation available - Snap Wrap

304L Rigid Chimney Liners

304L Applications: Wood and wood pellet burning appliances. Our 304L rigid liner and components are fabricated from the highest quality stainless steel, laser welded seam for a perfectly round pipe, and UL listed in the US and Canada. 

316L Rigid Chimney Liners

316L Applications: Wood, pellet, gas, oil, and coal burning appliances. 316L Rigid Liner has greater corrosion resistance than 304L Rigid Liner. Our 316L rigid liner and components are fabricated from the highest quality stainless steel, laser welded seam for a perfectly round pipe, and UL listed in the US and Canada.

What Parts Do I Need?

Rigid Liner Top Assembly Diagram | Rockford Chimney Supply

Rigid Liner Top Assembly

The diagram at left shows the parts typically needed at the top of the chimney. The rigid liner rigid chimney pipe Rigid Chimney Liner Pipe (1) is inserted into the chimney. The chimney top is covered by the top plateflat top plateRigid Liner Flat Top Plate— or —terra cotta top plateRigid Liner Terra Cotta Top Plate (2) which goes on over the liner. A support clampsupport clampRigid Liner Support Clamp (3) holds the liner in place and keeps it from slipping down the chimney. The storm collarstorm collarRigid Liner Storm Collar (4) covers the gap between the liner and top plate to keep out moisture. The rain caprain capRigid Liner Rain Cap (5) gives an attractive finished look while keeping rain, birds and critters from getting into your chimney, and sparks from getting out.

Connecting to Your Appliance

Fireplace Connection:

If you are connecting to an existing fireplace without an insert, you will need an additional top platetop plateRigid Liner Flat Top Plate to use where the bottom of the liner reaches the fireplace opening. You may also need to fill the space around the liner with insulation mixInsulation MixPour-Down Chimney Insulation Mix.

Rigid Liner Top Plate for Fireplace


If your fireplace has an insert with a top opening, you may need an elbow connectorelbow connectorsAdjustable and Fixed Elbows for Rigid Liner.

Stove/furnace (or other appliance needing a horizontal connection):

You will need a rigid tee connector with removable snout and clean-out captee connectorRigid Liner Tee with 10 in. removable snout and clean-out cap
— or —
long snout tee connectorRigid Liner Tee with 22 in. removable snout and clean-out cap

rigid Tee connector

You may also need:

rigid adjustable elbowsadjustable elbowsAdjustable Elbows for Rigid Liner to change the angle of the liner, and pop rivetsrivetsPop Rivets for assembly.