Is it possible to combine the object ZoneHVAC:IdealLoadsAirSystem with a heater such as ZoneHVAC:Baseboard:Convective:Electric? I have looked at ZoneHVAC:EquipmentList, but the ZoneHVAC:dealLoadsAirSystem does not have an object name and thus it cannot be referenced.

The model is intended for conceptual energy modeling in a scenario in which there is district heating, VAV and baseboard heating. Therefore the results should not reflect an increased airflow rate in winter in order to heat the zones, but instead the output should be an idealized heating effect from a convector/radiant object.