PP coaxial chimney sets

PP concentric chimney sets - complete solutions for modern heating systems

At Onninen we specialise in supplying high-quality PP concentric chimney sets.   Our products are an essential element of modern heating installations, ensuring effective exhaust gas removal and air supply to condensing boilers.   Our experience shows that a properly selected chimney set is crucial for the efficiency and safety of the entire heating system.

Concentric PP chimney sets consist of two pipes. The inner one discharges the exhaust gases. The outer one supplies air for combustion. This design ensures optimal operation of the condensing boiler. It also guarantees maximum use of energy from the exhaust gases.

Types of PP concentric chimney sets available in the Onninen offer

Our range includes a variety of chimney kits for condensing boilers. We offer both horizontal and vertical systems.   Through-wall and through-roof mounting kits are available.   Each kit contains the necessary elements such as pipes, elbows, clamps and roof penetrations.

We often come across questions about the differences between systems. Horizontal chimney sets work well in buildings with a boiler room on the ground floor. Vertical ones are ideal for houses with an attic. In both cases, we provide the highest quality products.

• Horizontal chimney kits (through the wall)
• Vertical chimney kits (through the roof)
• Air-flue systems for dual-function boilers
• Sets for single-function boilers with a storage tank

Many customers ask us about the brands available in our offer. We proudly recommend Onnline and Bosch products.   Onnline is our own brand, guaranteeing excellent value for money.   Bosch, in turn, is a renowned manufacturer, valued for its innovative solutions and reliability.

How to choose the right PP concentric chimney kit?

Choosing the right chimney set depends on many factors. The power of the condensing boiler is crucial. The length of the chimney is also important. The type of building and the location of the boiler room are also important.

In our daily practice, we see how important an individual approach is. Each installation has its own unique requirements. That is why we offer professional advice in selecting a system. Our specialists are always there to help and provide knowledge.

When choosing a PP concentric chimney set, pay attention to:

• Condensing boiler power
• Flue pipe length
• Installation type (horizontal or vertical)
• Manufacturing material (polypropylene PP)
• Pipe diameter (most often 60/100 mm or 80/125 mm)

Our experience shows that a properly selected chimney set is the basis for efficient boiler operation. An inappropriate system can lead to a decrease in the efficiency of the device. In extreme cases, it can even cause failures.

Practical aspects of installing PP concentric chimney sets

The installation of a PP concentric chimney set requires precision and professional knowledge. At Onninen, we offer not only the products themselves, but also the necessary assembly accessories. These include spirit levels, clamps and assembly pastes.

We recently had the opportunity to advise on installation issues for a project for a large housing estate.   Maintaining appropriate slopes of the condensate drainage pipes proved to be crucial.   Thanks to our tips, we managed to avoid potential problems with water retention in the system.

In the case of reorganizing old boiler rooms, we most often recommend sets with adapters. They allow easy connection of a new condensing boiler to the existing chimney. This solution saves time and costs when modernizing the heating system.

We often come across questions about the maintenance of chimney sets. We recommend regular inspections, preferably once a year. Checking the tightness of connections and the cleanliness of the pipes is the basis for safe operation. Our customers appreciate this advice because it translates into long-term and failure-free operation of the boiler.

Onninen recommends the use of original system components.   They guarantee perfect tightness and durability of the entire installation. It is worth remembering that even minor leaks can lead to serious consequences. These can be a decrease in the efficiency of the boiler or even a threat to the health of residents.

Our offer also includes air-flue chimney sets for various types of boilers. These systems work well in both single-family homes and multi-family buildings. Their versatility and ease of installation are features particularly appreciated by installers.

Many customers ask us about the differences between concentric and split systems. Concentric PP chimney sets have the advantage of being compact. They take up less space and are easier to install. Split systems work well when the boiler is located farther from the wall or roof outlet.

Our observations show that more and more investors pay attention to aesthetics. That is why we offer chimney sets in various colors. White systems go perfectly with a light facade. Black or anthracite work well with dark roofs.

At Onninen we focus on comprehensive solutions.   In addition to the chimney kits themselves, we offer support at every stage of the project. Our technical advisors help in selecting the right system. We also provide training for installers in the field of assembly and maintenance.

In summary, PP concentric chimney sets are an indispensable element of modern heating systems. Their correct selection and installation are crucial for the efficiency and safety of the condensing boiler. At Onninen, we provide not only high-quality products, but also professional advice and technical support. We invite you to familiarize yourself with our offer and take advantage of the knowledge of our experts.