Demand-based control for ventilation and air conditioning plants (VAC plants)

During extreme outdoor temperatures in summer or winter, air conditioning and ventilation systems must operate at full capacity to ensure a comfortable indoor climate. To provide the maximum air volume required, the fans have to operate with very high energy input.

In average everyday use, however, this volume is not required. By using the en:air solution with dynamic ventilation management, the required air volume can be adjusted to the amount actually needed in the rooms. This increases the efficiency of your plant while reducing your CO₂ emissions and energy costs.

en:air – smart ventilation management

Saves energy

Reduces energy consumption by an average of 30 %.

Improves comfort

Optimal indoor climate with no air stratification or drafts.

Complies with legal requirements

Continuous CO₂ control to fulfill legal hygiene requirements.

Eligible for subsidies

Take advantage of the current BEG subsidy for ventilation systems.

The perfect response to increasing demands at the room and building level

Today, more than ever, building operators are faced with major challenges: steadily increasing demands for cost and energy efficiency, optimization of user comfort, demanding climate targets, and, last but not least, the current debates about using VAC plants that ensure healthy indoor air quality. You can meet all these requirements with en:air, the demand-based smart measurement and control technology from Kieback&Peter for central air conditioning and ventilation systems.




For every requirement

Demand-based ventilation control with en:air – suitable for all ventilation systems that use some proportion of outside air and for almost all building types:

  • Sports halls
  • Exhibition halls
  • Event spaces
  • Universities
  • Museums
  • Swimming pools
  • Cinemas
  • And many more
© KB3 -

Example: sports hall

The building operator’s focus was on optimizing the energy consumption of a ventilation system that had already been in operation for 40 years. By employing the energy-efficient en:air solution, they were able to reduce thermal and electrical energy consumption by around 50 percent, while at the same time improving comfort and significantly reducing CO₂ emissions.


en:air optimizes conventionally controlled VAC plants

Comparison of conventional ventilation vs. demand-based ventilation with en:air

en:air uses fans or volume flow controllers to separately regulate the volume flow rate of supply and exhaust air based on CO₂ content, humidity, temperature and user requirements, all while maintaining balanced air flow in the room.

Optimal ventilation management ensures a comfortable indoor climate:

The solution significantly reduces electrical and thermal energy consumption while ensuring a pleasant indoor climate with uniform temperature distribution and no air stratification.

Benefit from our many years of project experience

Take advantage of our expertise in demand-based ventilation, which we have installed in new and existing buildings worldwide. Your team of K&P experts will provide you with an accurate estimate of the costs you could save by employing en:air in your VAC plant. You can expect average savings of 30 percent, and in many cases even higher.

Our services at a glance:

  • Analysis of your existing VAC plants to determine your individual potential savings based on your plant and building data
  • Planning
  • Installation and commissioning
  • Remote maintenance by customer request, technical operational management


Three good reasons for demand-based ventilation control with en:air

Reduce energy costs by an average of 30 percent with demand-based supply and exhaust air.

Reduce CO₂ emissions: better for the climate and the environment.

Comfortable indoor climate thanks to optimal mixing of supply and room air: even temperature distribution.

Gregor Molwitz ist Manager für Energieeffizienz bei Kieback&Peter

Questions about energy efficiency?

Gregor Molwitz
Manager Energy Efficiency

Kieback&Peter GmbH & Co. KG
Tempelhofer Weg 50
12347 Berlin

+49 30 60095-271

Contact me

Get a consultation!

We are here to provide a free and non-binding consultation on the subject of fire protection solutions.

Request an e-mail consultation