A precise ventilation concept is essential for the efficient operation of a building - otherwise energy costs can rise rapidly. In order to correctly dimension the relevant ventilation systems and adapt them to existing requirements, an exact calculation of the ventilation heat losses is necessary. Modern software solutions can provide crucial support here.
Especially in times of rising energy costs and a rapidly changing climate, every kilowatt hour saved counts. In this article, we provide an in-depth breakdown of the key methods for calculating ventilation heat losses and how the results can be integrated as seamlessly as possible into complex construction projects.
The most important facts in brief
Ventilation heat losses represent the energy losses caused by ventilation in buildings and rooms
The losses result in additional heat demand - which has to be covered by more energy input
They are a decisive factor for calculating the standard heating load in accordance with DIN EN 12831
What is meant by ventilation heat loss?
The term is central to the conceptual planning of ventilation systems. But what does this term actually mean and how does it affect the energy balance of a building?
Ventilation heat losses are caused by the necessary exchange of stale, polluted indoor air with fresh outdoor air. This process is essential to ensure a healthy and comfortable indoor climate. However, the ventilation process is also accompanied by the release of heat into the environment, which is referred to as ventilation heat loss.
