Circulation System

Additional circulation pumps present

 EPG
Additional pumps may have been installed for the heating system. In this case, which can be indicated here, extra electric auxiliary energy is charged. By default, the auxiliary energy is charged for the main circulation pumps only.

Pump(s) with (switch or) speed control

 EPG
In this box it can be indicated whether the main circulation pumps (and additional circulation pumps if present) are equipped with a switch and/or speed control. If this is not the case, the runtime of the pumps increases which leads to more electric auxiliary energy to be charged.