autarc and Stiebel Eltron collaborate: Integrated software solution simplifies heating planning

autarc and Stiebel Eltron collaborate: Integrated software solution simplifies heating planning

Berlin, 31.03.2025 — autarc, provider of innovative software solutions for heating and energy planning, is expanding its cooperation with the Stiebel Eltron Group: Following successful integration into the tecalor toolbox, the autarc software is now also integrated into the Stiebel Eltron toolbox. This cooperation provides installers and planners with a seamless connection and creates a uniform platform for more efficient heating planning.

According to Thies Hansen, co-founder and COO of autarc, the integration of the software into Stiebel Eltron's toolbox marks a further step towards a digital and resource-saving heating industry. “Our customers benefit from an optimized workflow because they have to use fewer tools in parallel, avoid duplicate data entry and spend time with
optimized planning in several countries


The new link allows direct synchronization of projects so that all relevant data from both tools is brought together. Craftsmen have access to autarc's intelligent planning tools, including 3D simulations, heat load calculations and hydraulic balancing. At the same time, they can access the proven functions of, such as heat pump planning, sound calculations and material lists. “By partnering with autarc, we are creating a practical and powerful solution for our customers that makes their daily work easier,” says Marcus Haferkamp, managing director of Stiebel Eltron. “This makes digital heating planning easier, faster and more efficient.”

Integration available now


Toolbox integration is now available. For more information on using and combining the two tools, see the autarc help articles:

About autarc


autarc GmbH, founded in 2023, is developing a SaaS platform for digital heating planning. The software combines intelligent calculations, modern technologies such as AI and LiDAR scans, as well as practical functions for the HVAC trade. With integration into existing tools, autarc facilitates the transition to fossil-free heating and supports specialist companies with hydraulic balancing, heat load calculation and efficient system planning.