Company Portrait

60 Years Kroll Energy

We are very pleased to announce that our company is reaching a special milestone this year: we are celebrating our 60th anniversary! These six decades have been a time of growth, innovation and, above all, partnership with our valued customers.

Since our founding in 1963, we have always worked to offer you a product portfolio of the highest quality. The support and trust of our customers have been the cornerstones of our success. Together we have experienced ups and downs, mastered challenges and celebrated successes.

During these 60 years, we have continuously evolved and pride ourselves on being a modern company that adapts to current trends and technologies. Our team of dedicated professionals is focused on always providing you with the best.

From workshop

To industrial production

Advertising highlights back in the day

Swabian quality since 1963

Made in Germany

Since its foundation in the 60's, the Kroll company has continuously developed. What has remained the same over all these years: Our high quality standards! We have a professional solution for every requirement. What has made our continuous success possible - besides our technical know-how - are our typical Swabian virtues: Quality, diligence and inventiveness.

March 1963
March 1963

Foundation of the company Walter Kroll GmbH in Burgstall

Our story begins as a small, Swabian heating engineer in Burgstall just outside Stuttgart.

November 1963
November 1963

Development and construction of the first old oil furnace

The development of the old oil furnace was the answer to the question of how to recycle the residual oil from automotive workshops in the most efficient way.

1965
1965

Construction of the first 700 old oil furnaces

2 years after the foundation we could already celebrate our 700th old oil furnaces. This is partly due to the density of workshops in the automotive city of Stuttgart, but also to the efficiency of our ovens.

1965
1965

Move to Kirchberg

Thanks to the rapid success, the move to a larger production hall to Kirchberg an der Murr followed.

1972
1972

Entry into sheet metal production

To ensure the high standards and the growing demand for our ovens, an in-house sheet metal technology is launched.

1972
1972

Doubling of the production area

7 years after the move, the production area in Kirchberg is doubled in size in order to catch up with the success of our products and increase production capa

1974
1974

Anniversary of the 25.000th old oil furnace

With the expansion of the production area, our anniversary of the 25,000th Altölofen sold follows just 2 years later!

1981
1981

Handover to son Edmund Kroll

Almost 20 years after its foundation, Edmund Kroll takes over the company from Walter Kroll and thus leads the company into the second generation.

1992
1992

Takeover of the company Keller

Our continued success and growth enabled us to take over the neighboring company Kellner in order to secure jobs in the region.

2000
2000

Sale of the company to two shareholders

At the start of the new century, Kroll GmbH is sold to two shareholder-managers, Alfred Schmid and Peter Scheuer.

2004
2004

Development of full condensing boilers

Under the new shareholders, a full condensing boiler is being developed as a complement to the old oil stoves, covering the growing demands in the areas of environmental protection, energy efficiency and sustainability.

2013
2013

50 years of Kroll

50 years of innovative heating solutions, customised sheet metal technology and, above all, a 50-year journey with outstanding employees fill us with great pride.

2014
2014

Takeover by Riva

Riva takes over Kroll GmbH as sole shareholder and divides it into two companies: The Sheet metal engineering continues to use the name Kroll GmbH, while the heating construction business henceforth operates under the name Kroll Energy GmbH.

2016
2016

New management

Dr Alexander Ramm takes over the management of Kroll Energy GmbH.

2019
2019

Develpoment of the MWK40

Kroll Energy GmbH remains true to its roots and continues to break new ground in the heating industry after more than 50 years. With the MWK40, the first mobile heat pump with an operating range of -10°C to +40°C and heating and cooling functions is developed!

2023
2023

60 Years Kroll Energy

Kroll Energy GmbH celebrates its 60th anniversary.

2023
2023

New management

Mr. Klaus Stetter joins the management team to push ahead with the expansion of new markets for our heat pump technology.