For nearly three decades, Hargassner and HAINZL have maintained a close technological partnership. What began in 1996 with an order for 500 control systems has evolved into a success story with more than 200,000 embedded systems delivered—consisting of over half a million individual modules. The close collaboration with the Upper Austrian pioneer in biomass heating technology is characterized by trust, a spirit of innovation, and technical excellence.

As a full-service provider of heating systems featuring pellet, wood chip, and log technology as well as heat pumps, Hargassner takes a holistic approach. Consequently, the requirements for the embedded products were exceptionally high.
// Robust, durable control systems designed for continuous operation
// Modular system architecture that can be flexibly adapted to various heating systems.
// Easy update capability and user-friendly operation
// Absolute reliability in 24/7 operation, even under elevated temperature conditions.
// Consistent, seamless compatibility with older heating systems as well as ongoing adaptations to new product generations.
HAINZL, in collaboration with Hargassner, implemented a fully integrated control system based on professional electronics development. HAINZL’s embedded systems development creates the ideal foundation for smooth operation, easy maintenance, and continuous further development of our customer’s embedded system through a combination of high-performance embedded hardware and a flexible embedded software architecture.
Thanks to specialized embedded programming and a scalable fieldbus system, software updates and precise diagnostic functions are possible directly via the fieldbus. From the initial concept through the prototype to serial EMS production, HAINZL assumes full project responsibility for Hargassner.
Wir entwickeln leistungsstarke Hard- und Software für Ihre Serie – von der Idee bis zum fertigen Produkt. Kontaktieren Sie uns für Ihre smarte Embedded-Lösung!
We develop high-performance hardware and software for your production series—from the initial idea to the finished product. Contact us for your smart embedded solution!
This joint project is characterized by clear technological milestones that perfectly integrate embedded software, embedded hardware, and human-machine interfaces (HMIs).
// Robust HMIs: High-performance control modules (human-machine interfaces / HMIs) with an intuitive graphical user interface for the user.
// Networking and Software: An expandable bus system with flexible embedded software development for continuous updates directly via the fieldbus.
// Intelligent Diagnostics: Integration of automatic diagnostic functions for proactive system monitoring
// Future-Proof Hardware: Temperature- and long-term-resistant embedded hardware for fail-safe continuous operation.
Our collaboration with Hargassner began in 1996 with an initial prototype and quickly progressed from a pilot production run to mass production. As a comprehensive E2MS partner, HAINZL supports Hargassner throughout the entire product lifecycle—from technical support to obsolescence management—and has been doing so for about 30 years!
As an experienced EMS service provider, we are responsible for highly efficient EMS manufacturing as well as the certified EMS production of electronic control assemblies in Austria. To date, over 200,000 assemblies have been produced in our state-of-the-art electronics manufacturing facility. What sets this collaboration apart is the relationship of trust that has grown over three decades. HAINZL has thus become an integral part of the continuous innovation process at Hargassner.

“We have been working with HAINZL, a company based in Linz, for more than 20 years. Our shared success story has been shaped by numerous innovations, new products, and sophisticated software features. A key part of our excellent collaboration is the personal connection and the rapid implementation of new ideas and products. We particularly value the reliability and flexibility in our partnership.”
– Anton HOFER, Product Manager at Hargassner




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