Duct

Fit for life

Once designed, a heat recovery unit becomes an integral part of a home. Whilst a heat recovery unit may be updated and replaced, the air distribution network, which is embedded in the fabric of the building, will remain. For the continued health of the building and its occupants, it is imperative that the system can be cleaned periodically.

The ComfoTube system, thanks to its minimal number of joints, robustly engineered components and radial installation allows for rigorous cleaning without the danger of misalignment or disconnection between parts. In addition, the ducting has a patented, smooth ‘Clinside’ interior which prevents dirt and moisture getting trapped in ridges within the system. This inhibits the growth of mould and bacteria. Independently tested by the Hygiene Institute for the Ruhrgebiet, Germany, it was found that using the correct cleaning equipment, between 95 and 98% of dust build up from the interior of the tubes could be removed.

Flexible round tube with Clinside smooth internal coating

• Semi rigid
• Flexible
• Robust tube
• Push fit joints secured with locking slides – no messy sealants
• Supplied on rolls – no need for multiple joints
• Certified by Hygiene Institute for the Ruhrgebiet, Germany for cleanliness
• Can contribute towards achieving Guaranteed Installed Performance

OnFloor air distribution

ComfoTubeFlat 51

Flexible oval flat tube with Clinside smooth internal coating

• Helps to deliver Guaranteed Installed Performance
• Easy to install, flexible tubes
• High-quality food-grade plastic (HDPE)
• Centrally and locally adjustable air volumes
• Low pressure losses
• Clinside smooth internal coating for clean tubes
• Easy to clean
• SKZ-certified

Simple Cleaning

The Zehnder ComfoFresh air distribution system supplies indoor spaces with fresh air – Clinside ensures this is done cleanly and hygienically. Clinside, the smooth internal walls in Zehnder ventilation pipes and filters not only reduces the build-up of dust, but also guarantees easy cleaning. Certification by a recognized hygiene institute confirms this.

Cleanliness thanks to Clinside

The smooth Clinside internal walls makes it difficult for dust to settle inside the ventilation pipes and makes cleaning so much easier.

Easy to clean

The Clinside smooth internal walls and the accessibility of all ventilation components allow easy and thorough cleaning. Zehnder provides vacuum cleaners with rotating brushes specially designed for this purpose.