Energy Efficiency

We spend approximately 80% of our time indoors. The indoor environment is becoming more and more important. A lot of energy resources are consumed to maintain the right temperature and air quality. Normally we say that 30% of the energy is spent on ventilation, another 30% for cooling and 30% for heating. (The last 10% is for the lighting and technical installations.) With ventilation represen-ting a third of the consumption we have a lot to work with. But we can also affect both heating and cooling through the ventilation system.

Energy efficient systems

Reducing the energy consumption in a building through ventilation can be achieved following some principal routes:

• Avoid wasting energy
• Reusing energy
• Intelligent design
• Downsizing