diff --git a/hub/exports/building_energy/idf.py b/hub/exports/building_energy/idf.py
index 18f2f89d..ecc72856 100644
--- a/hub/exports/building_energy/idf.py
+++ b/hub/exports/building_energy/idf.py
@@ -622,23 +622,23 @@ class Idf:
               _total_heat = (_occ.sensible_convective_internal_gain + _occ.sensible_radiative_internal_gain
                              + _occ.latent_internal_gain) / _occ.occupancy_density
             _new_schedules = self._create_constant_value_schedules('Activity Level', _total_heat)
+            print('add schedules')
             self._add_schedules(usage, 'Activity Level', _new_schedules)
+            print('add zone')
             self._add_zone(thermal_zone, building.name)
+            print('add heating system')
             self._add_heating_system(thermal_zone, building.name)
-            self._add_nodelist_system(thermal_zone,building.name)
-            self._add_baseboard_system(thermal_zone, building.name)
-            self._add_air_terminal_system(thermal_zone, building.name)
-            self._add_air_distribution_system(thermal_zone, building.name)
-            self._add_equipment_list_system(thermal_zone, building.name)
-
-            self._add_sizing_zone(thermal_zone, building.name)
-            self._add_outdoor_air_design_specification(thermal_zone, building.name)
-
+            print('add infiltration')
             self._add_infiltration(thermal_zone, building.name)
-            self._add_ventilation(thermal_zone, building.name)
-            self._add_occupancy(thermal_zone, building.name)
-            self._add_lighting(thermal_zone, building.name)
-            self._add_appliances(thermal_zone, building.name)
+            # print('add ventilation')
+            # self._add_ventilation(thermal_zone, building.name)
+            # print('add occupancy')
+            # self._add_occupancy(thermal_zone, building.name)
+            # print('add lighting')
+            # self._add_lighting(thermal_zone, building.name)
+            # print('appliances')
+            # self._add_appliances(thermal_zone, building.name)
+            #print('dhw')
             self._add_dhw(thermal_zone, building.name)
       if self._export_type == "Surfaces":
         if building.name in self._target_buildings or building.name in self._adjacent_buildings:
@@ -668,7 +668,6 @@ class Idf:
       Variable_Name="Water Use Equipment Heating Rate",
       Reporting_Frequency="Hourly",
     )
-
     # post-process to erase windows associated to adiabatic walls
     windows_list = []
     for window in self._idf.idfobjects[self._WINDOW]:
@@ -680,7 +679,6 @@ class Idf:
         windows_list.append(window)
     for window in windows_list:
       self._idf.removeidfobject(window)
-
     self._idf.saveas(str(self._output_file))
     return self._idf