• Innovations with air for more than 140 years

    Healthy, draught-free air quality supports the wellbeing of every employee. Our products enable draught-free air distribution combined with attractive design and optimal energy efficiency.

  • Worldwide high-quality ventilation components

    Air diffusers, chilled ceilings and concrete core cooling with air are the heart of our product range – standardised or as specials for project specific solutions.

    Foto © Bruno Klomfar
  • Plant Engineering

    Modern ventilation and air-conditioning systems paired with convincing technical concepts and the experience of our engineers persuades over decades.

    Photo Breuninger Stuttgart © David Matthiessen
  • Research and Development Services

    In our development center, creative climate engineers work on the future. The ambient air flow laboratory offers you competent and reliable air condition analyses for your projects.


Air conditioning technology in harmony with architecture

Kiefer develops and sells high-quality air diffusers, fan coil systems, chilled ceiling panels and concrete core cooling systems worldwide. In close cooperation with our engineering business we extended and implemented our practical experience in new developments of our ventilation components and systems.



    The new M9 Museum in Venice-Mestre, designed by Sauerbruch Hutton, uses INDUL N linear diffusers, which provide efficient air distribution without draughts.
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    Photo © GmbH
  • Reference Linear Diffuser INDUL

    Renovation work at State Parliament of Lower Saxony. INDUL linear diffusers enhance a feel-good clima.
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    Photo © State Parliament Lower Saxony/Focke Strangmann
  • Head Office Municipial Utilities Karlsruhe

    The high performance chilled ceiling panel can be integrated into any design concept.
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    Photo © Nikolay Kazakov

James-Simon-Gallery opens in Berlin

After ten years of construction, the Federal Chancellor officially opened the James Simon Gallery in Berlin on July 13th. In the building designed by star architect, the linear diffuser INDUL and the wall air passage INDULSNAP were inserted.

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Join our Team

We offer an attractive work environment with a perspective for the future in the air-conditioning technology. Apply for current jobs as Project Engineer, Technical Draftsman, Sales Engineer or Service Technician.

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Kiefer Luft- und Klimatechnik GmbH
phone 0711/8109-0


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Ventilation System Components

Air diffusers, chilled ceilings, fan coil systems and concrete core cooling systems. Ventilation system components for an ideal and draught-free room air flow.

Ventilation and air-conditioning systems

We efficiently realize the complete plant technology for the comfort and industrial sector including building control system and maintenance.


Consulting and Planning

Kiefer experts develop individual ventilation solutions, support your construction project with ambient air flow analyses and support as partners for maintenance and service.

Kiefer Luft- und Klimatechnik GmbH

Kiefer GmbH is a leading company in the field of ventilation, air handling and air conditioning technology. Our range of services includes consulting, planning and execution of systems for thermal comfort and industrial air conditioning, as well as the associated installation and maintenance. For more than three decades, Kiefer has also been selling high grade ventilation components worldwide, such as linear diffusers, wall passages, displacement outlets, chilled ceiling panels and concrete core cooling systems, developed in the company's own laboratories.

© 2018 Kiefer Luft- und Klimatechnik GmbH