Double-walled steel chimney system
(7 )
Double-wall steel chimney system - comprehensive solutions for your home
The double-walled steel chimney system is a reliable solution for modern heating installations. At Onninen, we offer a wide range of products in this category. Our systems are characterized by high quality of workmanship and durability. They ensure safe discharge of exhaust gases from heating devices. At the same time, they guarantee optimal thermal insulation.
In our daily practice, we see a growing interest in these systems. Customers appreciate their versatility and ease of installation. These systems work well in both new construction and modernization. We often come across questions about selecting the right system. That is why we have prepared a comprehensive offer for you.
Types of double-wall steel chimney systems available at Onninen
In our assortment you will find various solutions. We offer systems for condensing and traditional boilers. Versions for fireplaces and stoves for solid fuels are also available. Here are the main types of systems in our offer:
- Air-flue systems for turbo boilers
- Concentric condensing systems
- Systems for solid fuel boilers
- Universal systems for various types of heating devices
We especially recommend the 80/125 air-exhaust connection sets for turbo boilers. This solution is very popular among installers. It ensures effective exhaust gas removal and combustion air supply. This system guarantees safe operation of the boiler in all conditions.
For condensing boilers, we recommend condensing concentric DN 60/100 - DN 80/125 shaft connection chimney sets. These systems are resistant to condensate. They provide optimal operating conditions for modern condensing boilers. Their design allows for effective discharge of flue gases and condensate.
Advantages of double-wall steel chimney systems
Double-wall steel chimney systems offer many benefits. Their main advantages are high durability, corrosion resistance and ease of installation. Here's why it's worth choosing these solutions:
- Excellent thermal insulation thanks to the layer of air between the walls
- Resistance to high temperatures and aggressive exhaust fumes
- Possibility of use in various configurations and mounting conditions
- Long service life and low operating costs
- Aesthetic appearance and the ability to match the building's architecture
Our experience shows that these systems work well in a variety of projects. We recently used these solutions for a large housing estate. The investor appreciated their reliability and aesthetics. The double-walled steel chimney systems blended harmoniously into the architecture of the buildings.
In the case of modernization of older buildings, these systems are irreplaceable. Their flexibility allows for adaptation to existing chimney shafts. We often encounter a situation when a customer replaces an old boiler with a new, condensing one. In such cases, a double-walled steel chimney system is the ideal solution.
How to choose the right double-wall steel chimney system?
Selecting the right chimney system is a key stage in designing a heating installation. At Onninen, we offer expert advice in this area. When choosing a system, several important factors should be considered:
- Type of heating device (condensing boiler, traditional, fireplace)
- Power of the device and amount of exhaust gases discharged
- Exhaust gas temperature and condensation risk
- Length and route of the flue pipe
- Weather conditions at the installation site
In our daily practice, we see how important an individual approach to each project is. That is why we offer comprehensive support in selecting a system. Our specialists will help you select the optimal solution for a specific installation.
Onninen recommends double-wall steel chimney systems from renowned manufacturers. In our offer you will find products of the Onnline and FXA brands. These are our own brands, guaranteeing high quality at an attractive price. We also offer systems from other leading industry manufacturers.
Double-wall steel chimney systems are an investment in the safety and efficiency of the heating system. Their use translates into lower operating costs and longer service life of heating devices. At Onninen, we offer comprehensive solutions, tailored to the individual needs of each customer.
We invite you to contact our technical advisors. They will help you choose the optimal chimney system for your project. We guarantee professional support at every stage of implementation. Thanks to our experience and wide range of services, we can meet even the most demanding tasks.






