KERMI HRV insulated channel - Ø200/170 mm, L=2000mm, external housing PE Y230417000101K

KERMI HRV Insulated Ducts – Quiet and Efficient Ventilation

KERMI HRV insulated ducts are an innovative solution for ventilation systems, designed for quick, durable and quiet installation. Ideal for connecting a heat recovery unit (HRU) to air intakes and exhausts, as well as to EasyFlow distributors. The layered construction – an external protective pipe made of durable HDPE and an internal insulation layer of closed-cell polyolefin foam – provides not only excellent insulation properties but also effective noise reduction.

HRV ducts are characterized by high connection flexibility thanks to the use of EPDM connectors, which facilitates disassembly for cleaning and system maintenance. This eliminates the need for complex inspections, and access to the inside of the ducts is simple and convenient. This makes the system easy to maintain throughout its service life.

Construction and Properties

HRV ducts are designed to minimize energy losses and provide optimal acoustic comfort. The polyolefin foam used as insulation material perfectly absorbs sound waves, reducing noise generated by the HRU fans. The internal surface of the ducts further enhances the sound damping effect. The external HDPE layer provides stability and tight connections.

These ducts are easy to process – they can be cut using standard tools, and installation is carried out without the need for glues or tapes. Tight connections guarantee no leaks and maintain optimal ventilation system performance. It is important to properly align the ducts to the walls during installation.

Application and Benefits

KERMI HRV ducts are used in mechanical ventilation systems with heat recovery (HRU) in residential and commercial buildings. They are particularly recommended for:

• Connecting the HRU to air intakes and exhausts
• Building duct sections between the HRU and EasyFlow distributors
• Installation in spaces requiring quiet operation of the ventilation system
• Applications where easy disassembly and cleaning of ducts are important

Benefits of using KERMI HRV ducts:

• Excellent thermal insulation: prevents condensation of water vapor on the HRU connections to the air intakes and exhausts.
• Effective noise reduction: reduces the noise level generated by the HRU fans.
• Easy installation and disassembly: enables quick installation and simple system maintenance.
• Durability and tightness: guarantees long-lasting and trouble-free operation of the ventilation system thanks to the use of high-quality materials (HDPE, polyolefin foam, EPDM).
• Easy cleaning: allows regular cleaning of the ducts without the need to disassemble the entire system.
• No need for additional acoustic insulation: thanks to the sound-absorbing properties of the polyolefin foam.