Air-flue Duct DN80/125, Krzys-Pol, white, telescopic insertion length 2000 mm

Air-flue Duct DN80/125 from Krzys-Pol is a white telescopic insert designed to connect combustion appliances and ventilation systems. The product provides a compact and adjustable transition between DN80 and DN125 round connections, with an insertion length of 2000 mm that allows for flexible alignment and routing in confined installations. Constructed for air and exhaust gas flow, the duct supports typical residential and light-commercial heating and ventilation setups where a telescopic solution and space-efficient connection are required.

Advantages

The telescopic design delivers adjustable length up to 2000 mm, enabling precise positioning without the need for custom cutting. Its white finish offers a neutral appearance that integrates into most utility rooms and installation spaces. The insert-type connection simplifies assembly and helps maintain a sealed pathway for air and exhaust gases when properly installed with compatible fittings and seals. The component is suitable for compact routing and offers straightforward mechanical joining between different nominal diameters.

Suitable for

• Connecting boilers, heaters or combustion appliances with DN80/125 outlets to ventilation or flue systems
• Retrofit or replacement projects where adjustable insertion length is required
• Installations in tight or confined spaces that require telescopic adjustment
• Residential and light-commercial heating and ventilation applications

Key specifications

• Connection diameters: nominal DN80 and DN125 round
• Telescopic insertion length: 2000 mm
• Type: insert/telescopic flue/air duct
• Colour: white
• Intended media: combustion exhaust gases and ventilation air

How to use

Measure the required insertion depth and extend or retract the duct to the needed length within the 2000 mm range. Align the DN80 and DN125 ends with the corresponding appliance outlet and flue or ventilation connection, ensuring a straight, smooth path for flow. Slide the insert fully into the mating connection and secure it with the appropriate clamps, brackets or sealing rings as recommended by the appliance and system manufacturer. Verify that all joints are properly sealed and supported to prevent movement and to maintain correct draft and ventilation performance.

Usage recommendations

Use compatible sealing materials and mechanical fasteners suitable for exhaust temperatures and local building codes. Inspect connections after initial operation and periodically as part of routine maintenance to ensure seals remain intact and there is no leakage. Avoid exposing the duct to mechanical stresses or corrosive substances beyond the product's intended use.