Question about Koenig HeatsBox

The mobile phone must be within reach for programming. The button can also be used to start a standard heating process, but without time programming. When everything has been entered via the mobile phone and the data has been transmitted to the box, the mobile phone no longer needs to be close by. The data is then stored on the Box.

Hello, yes, the mobile phone must be within reach! As everything is controlled via the handset
Greetings