Installing a chimney liner is an essential part of owning a wood stove, pellet stove or fireplace, and the most efficient way to fit one into a new or existing chimney is by using chimney liner kits, which often include easy to follow DIY instructions.
However choosing the right chimney liner kits can be difficult, that’s why we’ve reviewed the most popular kits to make your life a little less difficult.
TOP Rated Chimney Kit Reviews
- Rockford Chimney Supply RockFlex Chimney Liner Kit
- Price: $$
- Installation: DIY instructions included
- Dimensions: 6 Inch x 20 Feet
- Materials: Stainless steel, exceeds all chimney industry standards
- Fireside Chimney Supply FireFlex 316Ti Stainless Steel Chimney Liner
- Price : $
- Installation: instructions not included
- Dimensions: 6in x 20ft
- Materials: Stainless steel
- Rockford Chimney Supply RockFlex Stainless Steel Smooth Wall Chimney Liner Tee Kit
- Price : $$
- Installation: instructions included
- Dimensions: 6 Inch x 25 Feet
- Materials: Stainless steel
- ShelterPro NCDB525KIT Aluminum Liner and Kit
- Price: $
- Installation: instructions included
- Dimensions: 25 feet x 5 inches
- Materials: Aluminium
Why Do you Need a Chimney Liner?
No matter what type of fuel you’re using a fire naturally produces exhaust fumes that can be detrimental to your health. For this reason, it’s essential you have a good quality chimney liner to ensure you and your loved ones are safe; additionally, they are a very cost effective way to fix an unsafe, worn or otherwise inefficient chimney flue.
Chimney liners provide an important function, they serve to contain and transport potentially harmful and toxic smoke from your wood burning stove or heating appliance. They also decrease the chance of a carbon monoxide leak, chimney fire, and creosote accumulation. Chimney liners can also increase the energy efficiency of your stove and it can make maintenance of your chimney much easier.
The good news is that chimney liners aren’t difficult to install since most come with few components and in-depth instructions. A good quality liner will enable you to clean and maintain your chimney with little effort, all chimneys will need to be cleaned a few times a year, so with a flexible chimney liner, the job is much easier. For instance, a chimney with no liner can be cleaned with specialist tools, yet a liner can quickly be accessed and cleaned by hand, saving you time and money.
What Type of Chimney Liner do You Need?
With regards to the Do-it-yourself chimney liner kits, there are many different sizes and dimensions you can choose from, however, there are essentially only two varieties, one that is referred to as a smooth wall double construction, while the other is known as a single wall construction that is typically corrugated. There are a variety of pros and cons for both types, which are as follows:
Smooth Wall Double Construction
- The smooth wall means it’s easier to clean than the corrugated variety
- The smooth wall means that there is less chance of creosote build-up
- Will retain heat for longer thanks to the double wall piping
Due to it being a heavier pipe it can be difficult to squeeze it down or past your damper, in which case you would need to use an additional flexible section of pipe to make the transition from your kit to your damper.
Single Wall Corrugated Construction
- Cost effective option for those with a strict budget in mind
- Typically more flexible than double wall constructed kits and so it will easily fit over your damper meaning in typical circumstances fitting extra sections can be avoided
- Inner corrugated wall means it is harder to clean and allows more creosote to deposit over time
What Chimney Liner Kit Adapter Do You Need?
The adapter is another important component you need to factor into the type of kit you choose and this is determined by the type of heating appliance you are using. There are two main types of adapters, one is called a Tee adapter, which is designed for wood burning stoves or fireplace inserts that typically have a rear vent. However, if you had an appliance with a top vent or an angled vent, you would opt for a stove top adapter.
How to Install a Chimney Liner Kit
First things first, it’s important to check you have all the necessary components in your kit before you begin the installation process. The kit should include the following materials:
- Top plate
- Stove top adapter
- Chimney cap
- The Liner
After you have checked that, when you first open your chimney kit, you will notice that it is coiled and in a protective plastic wrapper. Therefore, you will need to open it up and straighten it, ensuring you check for any damage that may impact its performance.
Measuring the Liner
The next step is to measure the chimney liner to your chimney and determine where you will need to cut to shorten it if necessary. To do this, simply run the liner down to the bottom of your chimney and if there is a considerable amount left hanging, mark it up ready to be cut to the appropriate size. To achieve this, you will need a pair of tin snips to do the cutting and a hammer and screwdriver to create the initial starter hole.
Insulating your Liner
Insulating your liner is a regulatory requirement, which stipulates it must be at least half an inch, a common insulating material which is easy to acquire is called pro-foil. This is quite easy to do, you simply need to wrap the liner once with the insulating material and use insulating tape to secure it in place. After you have done this, the final step is to wrap a layer of mesh around the insulation, which holds everything in place and protects the insulation from damage during the installation process and to help prolong its life in general.
Please note that since the liner are constructed of metal once cut they can be particularly sharp, as a result always ensure you wear a good quality pair of safety gloves at all times, during the assembly and installation process.
Fitting your Liner
The next step is to get on top of your roof and position your liner, ensure you do this with safety in mind and be wary of any power lines in your vicinity. You will usually need to bend your liner when manoeuvring it into the chimney, and once in place, you will go back the bottom of your chimney and attach it to your stove or other heating appliance. You will then need to go back to the roof to finish off the installation by placing the cap and top plate.
Fitting the Adapter
Once your liner is in your chimney, if there isn’t an adequate amount hanging down at the bottom, you should pull down an adequate amount at the bottom of your chimney that will fit nicely into your stove adapter component. For example, if you had a stove top adapter, once it had been clamped to the hanging liner, this would slot down into the top of your stove.
Therefore, ensuring the adapter is positioned with the clamps facing the hanging liner, slot it in place and once happy tighten the clamps. Once the adapter has been secured to the chimney liner, simply position your insert in place and slot the adapter now attached to your chimney liner into the appliance stove top.
Fitting the Top Plate Chimney Cap
Lastly, you will need to go back to your roof and fit your top plate and chimney cap, this is quite easy to do, but be wary of the masonry and therefore the types of screws you use.
The top plate will slot over the top of your liner and over your chimney hole, providing a neat cover helping to protect your liner and helping to further improve insulation. Beforehand place a bead of silicone around the edges of your chimney top and once positioned in place, you will need to screw it in position, however, as mentioned be careful of the masonry work as materials such as terracotta can be brittle, therefore, I would recommend a smaller sized screw. Once screwed in position, you will want to make it extra secure by placing some bricks on top of the plate.
If the liner is protruding too far up you will also need to shorten it before you place the chimney cap on top. You will only need a few inches remaining, therefore if required use tin snips to cut the liner and a screwdriver to create a starter hole. If this seems too inconvenient, you could also cut it using a saw, for example, a Sawzall. Once cut to the correct size, you will again need to place a bead of silicone between the top plate and liner to protect your chimney from rain and pests. Don’t worry about the aesthetic appeal at this stage as the chimney cap will cover everything up.
Finally, place the chimney cap over the top of your liner and top plate, this should slide on very easily. At this point, all that is left to do is to tighten the clamps in position and you’re done.
What Makes a Good Chimney Liner Kit?
To select the best chimney liner you first need to determine the dimensions of your chimney and stove pipe. Sizes typically start at around 5 inches in diameter but can go to a width of 30 inches.
Additionally, you want a stove liner that is insulated well to maximize efficiency or one that can be insulated after purchase. It’s also advisable to select one that has a lot of flexibility for easy fitting and maintenance.
A liner kit that comes accompanied with step by step instructions and labelled components is always preferred, simply because it saves you time having to work it out alone. Furthermore labelling components provide visual guidance which is found by many people including professionals to speed up the process.
As stated by UL 103 testing guidelines, you’ll also require piping that is capable of withstanding temperatures of at a minimum of 1,400F for at least one hour. Today, you will find that most liner kits do meet this requirement, yet you should always double check the product description or packaging, for this reason, it is often better to opt for a reputable brand with a sound reputation.
How Much Should you Pay?
It is important to consider two main things when installing your chimney lining. Firstly, you will need to ensure your piping is being installed in accordance with local regulations. In total, you can expect to pay an average of around $500 to $600 for your chimneys renovation, which includes liners, insulation, and piping.
If you’re currently in the planning stage, or just need a little extra heat in certain drafty parts of your home, then you may want to think about buying a space heater.
Fireside Chimney Supply FireFlex 316Ti Basic Flexible Chimney Liner Kit – 6in x 20ft
Available in a variety of sizes including 6in x 20ft, this chimney kit is perhaps the easiest to install and comes with a great set of features. That includes a continuous strip of stainless steel that is both water and gas sealed, keeping your home as safe and as warm as possible. Furthermore, 7 ply seams and 10 corrugations between each seam, helping you to deliver the flexibility needed for a low effort fitting. What we liked most about this kit is the fact it comes with step by step and in-depth instructions which are very helpful for the person with little experience. It is also pest proof and rain proof thanks to the top plate with EZ connect collars and rain cap.
- 13″ top plate with rain cap and appliance connector for vertical connections.
- Manufactured using the highest grade mill certified alloys.
- Complete installation instructions.
Rockford Chimney Supply RockFlex Stainless Steel Smooth Wall Chimney Liner Tee Kit
This is another great kit to line your chimney and is suitable for all fuel types, whether that be wood, gas or oil. Due to its increased flexibility and increased BTU capacity, this stainless steel chimney liner is becoming incredibly popular. For maximum efficiency, this liner is also insulated for optimum heat retention and safety. This is a great option if you want to connect two points with as much ease as possible, it is great as a wood stove chimney liner and fits all standard connections and can be used for wood burning, pellet, oil, and even coal heating systems.
- Quick Connect System; merely tighten the clamps and you’re done.
- The smooth interior design enables increased airflow.
- Fireside Chimney Supply FireFlex 316Ti Tee Flexible Chimney Liner Kit.
- Complete “Do It Yourself” installation instructions.
Rockford Chimney Supply RockFlex Stainless Steel Flexible Chimney Liner Tee Kit
This is another chimney liner by RockFlex, however, in our view, this one is the best quality liner available. We believe it’s always better to choose a liner from a company with a solid reputation, but also one which offers the best quality design and materials as they tend to last much longer and are more efficient. For instance, it’s insulated more helping to retain heat and the metal is also a lot thicker and more robust. Like all RockFlex liners, it includes the Complete Do It Yourself installation instructions for easy fitting, as well as the Quick Connect System allowing you to install it in a few simple to understand steps, merely tighten the clamps and you’re done, it’s as simple as that.
- RockFlex Chimney Liner Warranty; a warranty that is transferable to the next home owner.
- Composed of 316 stainless steel, surpasses all chimney industry criteria.
Fitting a chimney liner doesn’t have to be hard work thanks to the innovation of chimney liner kits. However it’ important for you to realise that all kits have not been made equally, they will vary in size, quality and attention to detail. The truth is that the only sure way to secure a chimney liner you can put your trust in for a reasonable cost is to buy from a well-trusted brand with positive user reviews.