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Why heat recovery ventilation?

Modern buildings have become nearly 100 % airtight to save on energy. Therefore, heat recovery ventilation (HRV) has become essential to remove moisture and odours, decrease elevated carbon dioxide levels and provide a comfortable room climate.

Advantages of heat recovery ventilation (HRV)

Buildings are becoming more and more airtight to keep valuable energy in. A permanent and uncontrolled air leakage through air-permeable windows and doors does therefore not exist anymore.

Due to construction techniques that deliver nearly airtight interiors, moisture accumulates in the building from people showering, bathing, cooking or simply breathing or sweating. When warm and humid air condenses on cool surfaces in unventilated rooms, the risk of mould growth or spore formation increases. Moisture-related damage can have adverse effects on the human body and the building structure.

In addition, insufficient ventilation leads to an undetected decrease in oxygen concentration and increase in carbon dioxide concentration. The consequences are fatigue, general indisposition and lack of concentration.

Opening windows counters these negative effects, but leads to an energy loss. A far better alternative is the installation of a heat recovery ventilation (HRV) system which is becoming more and more important and is frequently an integral component of new constructions or modernisations.

At a glance

  • supplies fresh air without draughts
  • removes stale, CO2-containing air
  • healthy and relaxing sleep
  • increases performance and concentration 
  • protects from pollen and fine dust 
  • prevents mould growth

How heat recovery ventilation (HRV) works

The ventilation system removes air, filters it and allows additional heat recovery. This saves energy and provides fresh and filtered air. The constant, controlled exchange of air creates a pleasant, refreshing indoor climate and generally improved wellbeing around the clock. People suffering from allergies can breathe a sigh of relief – the heat recovery ventilation (HRV) system also removes home toxins, e. g. from new furniture, and filters pollen, which therefore do not even enter the house.

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  • profi-air air distribution system (link to product)