haustec.de Readers' Choice: Double Win for Viessmann Climate Solutions

Allendorf (Eder), Germany, June 1, 2026 – Viessmann Climate Solutions secured two awards in the 2026 readers’ choice awards hosted by the online portal haustec.de. What makes this competition unique is its strong connection to real-world practice, as the jury consists of the installation partners themselves. At Viessmann Climate Solutions, this success is therefore seen above all as confirmation of the company’s culture of consistently prioritizing the needs and preferences of both professional installers and consumers in everything it does. Viessmann Climate Solutions is part of Carrier Global Corporation (NYSE: CARR), a leading global provider of smart climate and energy solutions.

This marks the ninth time that haustec.de has held its major reader poll; the website is part of the Stuttgart-based Gentner Publishing Group. Viessmann Climate Solutions (VCS) took first place in both the “Software” category (with its control center service) and the “Heat Pump” category (with the Vitocal 250-A air-to-water heat pump).  

Viessmann Control Center Service: More efficient, safer, and more cost-effective heating operation 

With its c control center service, VCS is setting new standards for the efficient and reliable operation of modern heating systems. Through continuous remote monitoring 365 days a year, the Viessmann control center service ensures that heating systems operate stably, efficiently, and with minimal downtime – while significantly reducing the need for on-site service visits. At the heart of the offering for Viessmann’s installation partners is daily data-driven remote monitoring with documented proof of inspection. The system status and relevant operating parameters are continuously monitored and analyzed. Even minor faults can be resolved remotely before they lead to malfunctions or outages. The result: consistently efficient and therefore cost-effective system operation with maximum availability.

Another award for the two-time test winner 

After the Viessmann Vitocal 250-A air-to-water heat pump (Typ AWO-E AC 251.A1) had already won the Stiftung Warentest test twice, the latest haustec reader poll also showed that installers were thoroughly convinced by this top-of-the-line product. The new, further improved, and modular indoor units of the Viessmann Vitocal 250-A air-to-water heat pump enable a complete decoupling of the outdoor and indoor units: Every outdoor unit in the series is compatible with every new indoor unit – regardless of the outdoor unit’s capacity. Electrical and hydraulic connections have been further optimized. This provides maximum flexibility in both new construction and retrofit projects and enables particularly short installation and commissioning times. Additionally, it operates with the natural refrigerant R290. This makes it an environmentally friendly, highly efficient, and future-proof heating solution.  

“These awards are truly special”

The winners were duly celebrated at the virtual awards ceremony. Dr. Conrad Wiedeler, Managing Director at Viessmann Deutschland GmbH, expressed his delight after receiving the awards, not only for the prizes themselves but also for the support from the installers: “It’s always nice to receive an award as recognition for the company’s good work and to know that our work is appreciated by our installation partners.” With a smile, Wiedeler added: “If we could ask our Vitocal 250-A right now, it would surely cheer loudly about the latest award – but we wouldn’t be able to hear a sound, because, as we all know, it’s one of the quietest of its kind.” 

About Viessmann Climate Solutions 

Founded in 1917 as a heating technology manufacturer, Viessmann Climate Solutions is now a global leader in efficient and systemic climate solutions (heating, water, and air quality) and renewable energy systems. The integrated Viessmann Climate Solutions portfolio seamlessly connects products and systems via digital platforms and services, creating a safe and reliable comfort climate for users. Viessmann Climate Solutions is part of Carrier Global Corporation, a worldwide leader in intelligent climate and energy solutions. More information: www.viessmann-climatesolutions.com

You can find a product overview of the Viessmann brand and all other details here: https://www.viessmann.de/