We are KWB

KWB stands for power (Kraft) and heat (Wärme) from biomass and is synonymous with cutting-edge biomass heating systems from Austria. The brand from Styria in Austria was created by following a clear vision:


We provide energy for life!




More than 70,000 customers have trusted us so far and have chosen the KWB brand. Read more.

KWB Experience

Since 2010 we are "Erlebniswelt Wirtschaft" business and open our factory halls in St. Margarethen / Raab during the operating times also gladly for groups of visitors. Read more.

KWB Partner Academy

At the KWB Academy, we train our customers, employees and partner companies to become biomass experts. Read more.


Here you will find all dates for trade fairs and in-house exhibitions. Read more.

Technical innovation

At the production and development site in St. Margarethen / Raab, employees of KWB are constantly researching innovative solutions for ... Read more.

From a manufacturer to the brand

The company KWB - Kraft und Wärme aus Biomasse GmbH (power and heat from biomass) was founded in 1994 from the mechanic and organic farmer Erwin Stubenschrott and additional partners in Graz.

Three years later the company moved to St. Margarethen/Raab in Eastern-Styria. Since then the company has continuously expanded. In 2000, a second production hall was built, followed by the construction of a third only one year later. In 2003, the KWB Competence Centre was constructed. It is used to link industry expertise and image building.


The strong demand for biomass heating systems all across Europe led to the establishment of subsidiaries in Germany, Italy and France. In Ireland, the U.K., Belgium, the Netherlands, Luxembourg, Slovenia, Spain, Chile and severeal other countries, KWB is represented by strong sales partnerships.

In the meantime, KWB has become known for its innovative edge with respect to renewable heating systems.

Majority shareholder and managment of KWB

Since early September 2016 the company PDP Holding GmbH is the new majority shareholder of the company to ensure KWB to continue strategically growing. The PDP holding company whose headquarter is in Salzburg has different majority holdings in companies operating in the fields of innovative technology, sustainable development, publishing and gastronomy and culture. PDP Holding is individual, independent and future-oriented. The PDP Holding is in 100% ownership of the entrepreneur Peter Daniell Porsche and is headed by Rafael Walter as sole managing director. www.pdp.at. Since January 2018 the management of KWB GmbH is carried by Helmut Matschnig.