Why is it important to seal chimney pipes?

Why is it important to seal chimney pipes?


Wood-burning appliances are one of the most demanded products this winter. They are a source of heat for many households. However, it is important to keep in mind that their correct installation and use are crucial to avoid risks and obtain an efficient heat emission.In particular, sealing the chimney pipes is a very important part within that installation process.

Importance of sealing chimney pipes

In this post, we will talk about the importance of sealing chimney pipes. We will talk about sealing in stoves according to the Ecodesign 2022 standard. We will also talk about the risks of not doing so, and how to perform the sealing properly. By following the tips we’ll share, you’ll be able to use your wood stove safely and efficiently. Let’s get to it!

Why is it important to seal the chimney pipes?

It is essential to know what is the correct position of the chimney pipes. Within this point, you must know how to seal the chimney pipes. If this sealing is not done, the gases produced by the combustion can escape through the joints. In addition, the sealing of the pipes ensures proper smoke evacuation.

We recommend you read the post “Why is it important to insulate a chimney pipe?” for more information.

Risks of not sealing chimney pipes

Not sealing chimney pipes properly can have several risks, among them:

  1. Fire Hazard: Smoke leaks can collect on the roof or walls, increasing the risk of fire.
  2. Carbon monoxide poisoning hazard: If flue gases are not properly vented, they can leak into the home and cause carbon monoxide poisoning, which can be fatal.
  3. Damage to the structure of the house: The accumulation of smoke and condensation can cause damage to the walls, ceilings and floors of the house.
  4. Increased fuel consumption: If chimney pipes are not properly sealed, there can be heat loss and, therefore, increased fuel consumption to maintain the desired temperature.

Benefits of sealing chimney pipes

Proper sealing of the pipes has the following benefits:

  1. Improved safety: sealing chimney pipes prevents smoke buildup inside the home and reduces the risk of fires and carbon monoxide poisoning.
  2. Energy savings: By sealing the chimney pipes, heat loss is reduced, which can reduce the consumption of fuel needed to heat the house.
  3. Improved air quality: By sealing the chimney pipes, indoor air quality is improved by reducing the amount of smoke and flue gases entering the home.
  4. Longer stove life: By sealing the chimney pipes, you prevent corrosion in the stove and extend its life.

How to seal the chimney pipes?

The process of sealing the pipes is not particularly complicated, but we always recommend that it be done by a qualified professional.

Necessary tools:

  • Refractory silicone. You can find this type of product in any specialized hardware store or department store.
  • High temperature adhesive tape.
  • Plastic spatula.
  • Protective gloves.
  • Chimney brush.

Steps to seal the chimney pipes:

  1. You must turn off the stove and wait for it to cool completely.
  2. Clean the chimney thoroughly with the brush and remove soot and dirt from the pipes.
  3. Use the high temperature adhesive tape to cover the joints between the pipes and cover them completely.
  4. Apply the refractory silicone over the joints previously sealed with high temperature adhesive tape. Make sure to completely cover the joints with an even layer of silicone.
  5. Use the spatula to smooth the silicone layer and remove the excess.
  6. Allow the silicone to dry.

Useful tips

You should take into account the recommendations of each manufacturer and consult a professional. Here are some tips to keep in mind:

  • Be sure to use a sealant and adhesive tape that are specifically designed for use on high-temperature fireplaces and stoves.
  • Wear protective gloves to avoid contact with silicone and tape, as they can be irritating to the skin.
  • Be sure to seal all joints between chimney pipes to prevent smoke and flue gas leaks.

Sealing of stove pipes according to the Ecodesign 2022 standard

The Ecodesign 2022 standard establishes specific requirements for wood-burning stoves, such as our Panadero stoves. These stoves must meet certain energy efficiency and pollutant emission standards. These wood-burning appliances must have a minimum energy efficiency of 75% and comply with the particulate matter and carbon monoxide emission limits established by the regulation.

How to seal chimney pipes

To perform chimney pipe sealing on this type of appliance, it is important to follow the same general steps that apply to all wood stoves, but using materials and tools that meet Ecodesign 2022 standards. This means using sealant and high-temperature adhesive tape that meet the requirements of the regulation, and ensuring that the stove meets energy efficiency and emissions standards.

It is important to note that while sealing the flue pipes is an important step in improving the safety and efficiency of the stove, it is not enough on its own to ensure that the stove meets the Ecodesign 2022 requirements. It is important to ensure that the stove is installed properly and used safely and efficiently.


If you have a wood-burning appliance, we recommend that you make sure the pipes are sealed properly. Use the right tools and materials and follow the steps we’ve outlined in this post. Also, make sure that your stove complies with the energy efficiency and pollutant emissions standards established by the Ecodesign 2022 regulation. If you have any questions or need help installing or using your wood stove, do not hesitate to contact us or leave us a comment.

We remind you that all our stoves comply with Ecodesign 2022 standards!

We hope this post has served as a guide. Take a look at our blog and find solutions and recommendations to help you with your fireplace or wood stove.

Visit our online store for Panadero wood stoves. If you have any questions or need help choosing the right stove, don’t hesitate to contact us. We will be happy to help you.

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