tado° computes a heat request for each heating zone it controls. The amount of heat requested depends on the target temperature, the current and previously measured temperatures, building characteristics, and the weather.
On the Main Screen
The main screen indicates the level of heat that the zone is currently requesting: none / low / medium / high
For multi-zone setups the combined heat requests of all zones trigger boiler activity.
In the Report
These heat request levels are also displayed in the report when enabling the heating overlay on the right hand side.
When long-pressing a specific point in time in the report the same symbols are used to visualize the heat request.