Coaxial chimney pipes

Concentric chimney pipes - the key to efficient exhaust gas removal

Concentric chimney pipes are an essential element of modern heating systems.   In our daily practice, we see a growing interest in these products. They provide effective exhaust gas removal while providing combustion air. This solution works well in both single-family homes and commercial buildings.

We often come across the question about the differences between the types of concentric pipes. So we explain that there are two main sizes available: DN 60/100 and DN 80/125. The choice depends on the boiler output and the length of the installation. Smaller pipes work well in compact systems. Larger ones allow for longer chimney drafts.

Types of concentric chimney pipes in the Onninen offer

Our range includes a variety of concentric chimney pipes. We offer products from renowned brands such as Krzys-Pol and Immergas.   Each of them has its unique features and advantages, which we adapt to the needs of our customers.   Here are the basic types of pipes available in our warehouse:

• Chimney pipes DN 60/100
• Chimney pipes DN 80/125
• Air-flue chimney pipes
• Condensing chimney pipes
• Concentric pipes /100
• Concentric pipes /125

All of these products are characterized by high quality of workmanship. They guarantee safe and effective exhaust gas removal. At the same time, they provide a supply of fresh air to the combustion process.

How to choose the right concentric chimney pipes?

Selecting the right concentric chimney pipes is a key element in designing a heating installation.   Our experience shows that it is worth considering several important factors. First, the boiler power must be determined. This determines the required pipe diameter. Second, the length of the planned chimney draft must be measured. This affects the resistance of the exhaust gas flow.

Many customers ask us about the material of the pipes. At Onninen, we offer both steel and aluminum pipes. Each of these solutions has its advantages. Steel provides durability and resistance to high temperatures. Aluminum, on the other hand, is lighter and easier to install.

Recently, we provided advice on pipe selection for a large housing estate project. We decided on a DN 80/125 system. This allowed for efficient exhaust gas removal from the boiler room located in the basement. Larger diameter pipes allowed for a longer route without loss of draft.

Practical applications of concentric chimney pipes

Concentric chimney pipes are widely used in various types of buildings.   In the case of single-family homes, they work perfectly in combination with condensing boilers.   They provide not only exhaust gases but also air supply. This is crucial for the high efficiency of these devices.

In commercial buildings, concentric pipes are often used in cascade systems. They allow for the efficient removal of flue gases from several boilers at the same time. This solution works well in hotels or office buildings. It provides flexibility and space savings.

Our experience shows that concentric pipes are also popular in modernizations. They allow the replacement of an old furnace with a modern condensing boiler. They do not require a major reconstruction of the existing chimney. This significantly reduces the costs of the entire investment.

In our daily practice, we encounter various installation challenges. We recently helped a client select a system for a house with a flat roof. We used DN 60/100 concentric pipes with horizontal discharge. This allowed for an aesthetic and functional solution to the problem.

Onninen recommends the use of concentric chimney pipes in modern heating installations.   They ensure not only safety, but also high energy efficiency of the entire system.   It is an investment that quickly pays off in the form of lower heating bills.

Our offer includes comprehensive chimney solutions. They include not only the pipes themselves, but also the necessary accessories. Elbows, tees, roof transitions - all of this is available immediately. We also provide professional advice on selection and installation.

We often come across questions about the length of the warranty for concentric pipes. In the case of products from our offer, it is up to 10 years. This is proof of the high quality and durability of the solutions we offer. We give customers the certainty that their installation will serve for years.

In the case of reorganization of heating systems, we most often recommend a comprehensive replacement. This includes not only the boiler, but also the chimney system. Concentric pipes allow for optimal use of the possibilities of modern devices. This is the key to achieving maximum efficiency and savings.

We invite you to contact our specialists. They will help you choose the optimal concentric chimney pipes for a specific project.   Thanks to our wide range of products and expertise, we are able to meet even the most demanding installations. We provide comprehensive service - from consulting, through delivery, to technical support.