We have fundamentally improved the calculation of heat output for surface heating systems in Autarc.
What’s new?
Previously, the maximum output of a surface was calculated solely based on the permissible surface temperature limits – typically:
29 °C ⇒ approx. 100 W/m²
Edge zones up to 35 °C ⇒ approx. 175 W/m²
The influence of the supply and return temperatures was not taken into account.
What’s changing?
With the new calculation logic, performance is now calculated dynamically and temperature-dependently according to DIN EN 1264. This means:
The actual output is calculated based on the entire floor structure, pipe parameters, and the selected supply and return temperatures.
This results in significantly more accurate, simulation-ready results.
Important for existing projects
Old heating surfaces (created before this update) will still be shown as maximum output. This means:
Changes to the supply or return temperature have no effect on the displayed value (“Max. Power Output”).
If you want a surface to be calculated using the new, more realistic method, you will need to add this heating surface again.