Wood stoves: Is chimney lining always necessary?

When considering the installation of a wood or pellet stove, many homeowners ponder the feasibility of utilizing an existing chimney. Is it suitable for the type of stove you plan to install? While this question might seem daunting, there’s a straightforward solution that can address these concerns.

wood stove

The basic principle of chimney lining

The concept is quite simple: instead of allowing the smoke to rise through a bare chimney, whose overall condition might be unknown, an independent stainless steel lining is introduced inside the chimney. This lining connects the stove at one end and extends to the chimney’s exit at the roof on the other. This method not only enhances the stove’s draft but also bolsters the safety of your installation, ensuring its longevity.

Caution with old chimney conduits

Traditional chimney conduits are typically masonry-built and may no longer be suitable for venting the smoke produced by modern stoves. These conduits are often too wide, lack proper sealing, and can pose risks due to poor draft, condensation, or inadequate resistance to the temperature of the smoke. These issues can increase fire hazards and negatively impact the operation and efficiency of your stove.

The ideal solution: Chimney lining

Lining the chimney emerges as the optimal solution, regardless of whether the conduit is straight or deviated. This is achieved using flexible stainless steel tubes, which typically feature a double layer with a perfectly smooth inner wall. For straight conduits, a rigid stainless steel tube is more appropriate. This round and smooth conduit, tailored to the stove’s diameter, significantly enhances its performance.

Benefits of chimney lining

1. Enhanced safety: Lining the chimney reduces the risk of chimney fires caused by creosote buildup or other obstructions.
2. Improved efficiency: A lined chimney ensures better draft, which in turn allows the stove to burn more efficiently, producing more heat with less fuel.
3. Extended lifespan: A lined chimney is less susceptible to the corrosive effects of flue gases, ensuring a longer lifespan for both the chimney and the stove.
4. Versatility: Whether you have a straight or deviated chimney, there’s a lining solution available to suit your needs.

Seeking expert advice

If you have questions or need guidance regarding chimney lining or wood stoves in general, it’s always a good idea to consult a chimney expert. Alternatively, you can initially approach a chimney sweeping company for insights. They can provide valuable information on the condition of your chimney and recommend whether lining is necessary for your specific situation.


While the charm of a wood stove is undeniable, ensuring its safe and efficient operation is paramount. By understanding the importance of chimney lining and seeking expert advice, homeowners can enjoy the warmth and ambiance of their wood stove with peace of mind.