W. Baelz & Sohn GmbH & Co.

W. Baelz & Sohn GmbH & Co.

Koepffstraße 5, 74076 Heilbronn

AboutW. Baelz & Sohn GmbH & Co.



For heat transfer using water, steam or thermal oil, Baelz has been a highly recommended and competent partner to industry, in district heating and in building services since 1896. We offer a wide range of components and well-planned coordinated system solutions. 

Integral and especially sustainable planning is the fundamental prerequisite for project planning.

We reduce the number of system components and thus the investment costs for our customer as well. Our top priorities: High product quality, low energy consumption and long service life of our systems.


Baelz technologies have always strived to use thermal energy as economically as possible and have helped to conserve resources of all kinds for decades using their design proximity to physics, thermodynamics, electrical engineering and electronics.

Baelz products unite these disciplines of science, based on the fundamentals of nature. Rendered useful by human ingenuity in the best German engineering tradition, they are the expression of the nature and technology in harmony.


Five crucialpoints for successful teamwork between us and our customers, with the objective of a long-term partnership.

Point 1: Holistic and sustainable planning

Reference: Expansion of the Bayer Healthcare facility in Beijing

  • Cooperative project planning of the expansion at the Beijing location
  • Demonstration of potential savings: >€140,000 per year
  • Working out different options in various capacity ranges
  • Total optimization of the system
  • Supply of steam transfer stations, steam generators, water heaters

Point 2: Reduction of system components

Reference: New construction of KSC/Logistics/Energy center for Audi/h5>

  • Operational reliability though central, redundant coupled pumps
  • Combined function for conveying and control
  • Use of the entire media temperature differential up to the point of use
  • Investment cost reduction
  • Saving of approx. 160 circulation pumps including check valves

Point 3: Consistently high product quality

Reference: Energetic optimization with steam ejectors in the textile industry

  • Better and faster product drying
  • Uniform and stable surface temperature
  • No overheating at the drum inlet
  • High operational reliability

Point 4: Less energy consumption

Reference: Dehner Garden Center

  • Savings of 12 pumps (3,527 € annually)
  • Elimination of a total of 105 circulation pumps
  • Thermal savings: 130,000 € annually
  • Electricity savings: 20,000 € annually
  • Amortization: 5.5 years

Point 5: Guaranteed longer service life

Facilities that have been running for years speak for themselves

  • Problem-free ventilation systems with ejectors in Berlin for over 30 years
  • Problem-free tube bundle heat exchanger in Cologne since 1989


In 2021, Baelz was celebrating its 125th anniversary! Bit by bit we would like to collect pieces of this long history on our website: Great milestones and little anecdotes, findings from the Baelz archive, plenty of technology, but also some personal stories.

Share with us! Send a message to marketing@baelz.de, telling us what you associate with Baelz: your experiences, a historical photo or whateve else you would like to recount. We look forward to your contributions.

The principles that have always characterized Baelz will continue to exist in the future: Innovative. Sustainable. Congenial!