The danger of condensation caused by metal
Uninsulated or poorly wool-wrapped ducts in a utility room create a massive moisture risk. During winter, when drawing in freezing outdoor air, the surface of a metal pipe cools down instantly and becomes covered in condensation. This continuous dripping onto floors or suspended plasterboard ceilings eventually causes mold and damages your expensive home finishes.
Traditional wool insulation is imprecise and leaves numerous thermal bridges. Every poorly taped joint or accidentally compressed piece of mineral wool becomes a spot where the heat recovery unit's warmth is lost. The system's efficiency drops, and you are forced to pay higher bills for additionally heating the supply air with electric heaters.
The rigid EPP transformation
EPP (Expanded Polypropylene) ducts act as an impenetrable, seamless thermal shield. Thanks to their extremely dense, closed-cell structure, these pipes insulate the cold within the very core of the duct. Not a single drop of condensation will ever fall in your utility room, even during the harshest, dampest winter.
This is an incredibly robust, impact-resistant engineering solution. Unlike softer alternatives, EPP ducts do not deform if accidentally bumped or tightly clamped with mounting brackets. This rigid trunk line ensures that air moves in a perfectly straight trajectory, without any resistance or noise, guaranteeing long-lasting system performance.
100% airtightness and no thermal bridges – unique EPP duct sleeves connect so tightly that they guarantee perfect thermal insulation throughout the entire route, extending the lifespan of your heat recovery unit.

