diff --git a/hub/data/energy_systems/montreal_custom_systems.xml b/hub/data/energy_systems/montreal_custom_systems.xml
index ea525ec1..8e1b2db3 100644
--- a/hub/data/energy_systems/montreal_custom_systems.xml
+++ b/hub/data/energy_systems/montreal_custom_systems.xml
@@ -113,50 +113,18 @@
             <electrical_efficiency>0.22</electrical_efficiency>
             <storage>true</storage>
         </system>
-        <system id="11" type="water distribution and fancoils" fuel_type="electricity">
-            <name>Water distribution and fancoils</name>
-            <demands>
-                <demand>electricity</demand>
-            </demands>
-            <distribution_heat_losses units="%">0</distribution_heat_losses>
-            <distribution_consumption_fix_flow units="%">4</distribution_consumption_fix_flow>
-            <distribution_consumption_variable_flow units="%">4</distribution_consumption_variable_flow>
-            <storage>false</storage>
-        </system>
-        <system id="12" type="air distribution central" fuel_type="electricity">
-            <name>Air distribution central</name>
-            <demands>
-                <demand>electricity</demand>
-            </demands>
-            <distribution_heat_losses units="%">0</distribution_heat_losses>
-            <distribution_consumption_fix_flow units="%">4</distribution_consumption_fix_flow>
-            <distribution_consumption_variable_flow units="%">4</distribution_consumption_variable_flow>
-            <storage>false</storage>
-        </system>
-        <system id="13" type="DX distribution central" fuel_type="electricity">
-            <name>DX distribution central</name>
-            <demands>
-                <demand>electricity</demand>
-            </demands>
-            <distribution_heat_losses units="%">0</distribution_heat_losses>
-            <distribution_consumption_fix_flow units="%">4</distribution_consumption_fix_flow>
-            <distribution_consumption_variable_flow units="%">4</distribution_consumption_variable_flow>
-            <storage>false</storage>
-        </system>
     </systems>
     <system_clusters>
         <system_cluster name="system 1 gas">
             <systems>
                 <system_id>1</system_id>
                 <system_id>7</system_id>
-                <system_id>13</system_id>
             </systems>
         </system_cluster>
         <system_cluster name="system 1 gas pv">
             <systems>
                 <system_id>1</system_id>
                 <system_id>7</system_id>
-                <system_id>13</system_id>
                 <system_id>10</system_id>
             </systems>
         </system_cluster>
@@ -164,14 +132,12 @@
             <systems>
                 <system_id>2</system_id>
                 <system_id>7</system_id>
-                <system_id>13</system_id>
             </systems>
         </system_cluster>
         <system_cluster name="system 1 electricity pv">
             <systems>
                 <system_id>2</system_id>
                 <system_id>7</system_id>
-                <system_id>13</system_id>
                 <system_id>10</system_id>
             </systems>
         </system_cluster>
@@ -179,14 +145,12 @@
             <systems>
                 <system_id>1</system_id>
                 <system_id>8</system_id>
-                <system_id>11</system_id>
             </systems>
         </system_cluster>
         <system_cluster name="system 2 gas pv">
             <systems>
                 <system_id>1</system_id>
                 <system_id>8</system_id>
-                <system_id>11</system_id>
                 <system_id>10</system_id>
             </systems>
         </system_cluster>
@@ -194,14 +158,12 @@
             <systems>
                 <system_id>2</system_id>
                 <system_id>8</system_id>
-                <system_id>11</system_id>
             </systems>
         </system_cluster>
         <system_cluster name="system 2 electricity pv">
             <systems>
                 <system_id>2</system_id>
                 <system_id>8</system_id>
-                <system_id>11</system_id>
                 <system_id>10</system_id>
             </systems>
         </system_cluster>
@@ -209,14 +171,12 @@
             <systems>
                 <system_id>3</system_id>
                 <system_id>4</system_id>
-                <system_id>13</system_id>
             </systems>
         </system_cluster>
         <system_cluster name="system 3 and 4 gas pv">
             <systems>
                 <system_id>3</system_id>
                 <system_id>4</system_id>
-                <system_id>13</system_id>
                 <system_id>10</system_id>
             </systems>
         </system_cluster>
@@ -224,27 +184,23 @@
             <systems>
                 <system_id>4</system_id>
                 <system_id>4</system_id>
-                <system_id>13</system_id>
             </systems>
         </system_cluster>
         <system_cluster name="system 3 and 4 electricity pv">
             <systems>
                 <system_id>4</system_id>
                 <system_id>4</system_id>
-                <system_id>13</system_id>
                 <system_id>10</system_id>
             </systems>
         </system_cluster>
         <system_cluster name="system 5">
             <systems>
                 <system_id>8</system_id>
-                <system_id>11</system_id>
             </systems>
         </system_cluster>
         <system_cluster name="system 5 pv">
             <systems>
                 <system_id>8</system_id>
-                <system_id>11</system_id>
                 <system_id>10</system_id>
             </systems>
         </system_cluster>
@@ -252,14 +208,12 @@
             <systems>
                 <system_id>5</system_id>
                 <system_id>8</system_id>
-                <system_id>12</system_id>
             </systems>
         </system_cluster>
         <system_cluster name="system 6 gas pv">
             <systems>
                 <system_id>5</system_id>
                 <system_id>8</system_id>
-                <system_id>12</system_id>
                 <system_id>10</system_id>
             </systems>
         </system_cluster>
@@ -267,14 +221,12 @@
             <systems>
                 <system_id>6</system_id>
                 <system_id>8</system_id>
-                <system_id>12</system_id>
             </systems>
         </system_cluster>
         <system_cluster name="system 6 electricity pv">
             <systems>
                 <system_id>6</system_id>
                 <system_id>8</system_id>
-                <system_id>12</system_id>
                 <system_id>10</system_id>
             </systems>
         </system_cluster>
diff --git a/hub/exports/building_energy/idf.py b/hub/exports/building_energy/idf.py
index 058a4e8d..e0c25f7f 100644
--- a/hub/exports/building_energy/idf.py
+++ b/hub/exports/building_energy/idf.py
@@ -427,32 +427,32 @@ class Idf:
     for zone in self._idf.idfobjects["ZONE"]:
       if zone.Name == f'{zone_name}_infiltration':
         return
-    schedule = f'Infiltration schedules {thermal_zone.usage_name}'
-    if schedule not in self._idf.idfobjects[self._HOURLY_SCHEDULE]:
-      return
-    self._idf.newidfobject(self._INFILTRATION,
-                           Name=f'{zone_name}_infiltration',
-                           Zone_or_ZoneList_Name=zone_name,
-                           Schedule_Name=schedule,
-                           Design_Flow_Rate_Calculation_Method='AirChanges/Hour',
-                           Air_Changes_per_Hour=thermal_zone.infiltration_rate_system_off
-                           )
+      schedule = f'Ventilation schedules {thermal_zone.usage_name}'
+      #if schedule not in self._idf.idfobjects[self._HOURLY_SCHEDULE]:
+      #  return
+      self._idf.newidfobject(self._INFILTRATION,
+                             Name=f'{zone_name}_infiltration',
+                             Zone_or_ZoneList_Name=zone_name,
+                             Schedule_Name=schedule,
+                             Design_Flow_Rate_Calculation_Method='AirChanges/Hour',
+                             Air_Changes_per_Hour=thermal_zone.infiltration_rate_system_off
+                             )
 
   def _add_ventilation(self, thermal_zone, zone_name):
     for zone in self._idf.idfobjects["ZONE"]:
       if zone.Name == f'{zone_name}_ventilation':
        return
-    schedule = f'Ventilation schedules {thermal_zone.usage_name}'
-    if schedule not in self._idf.idfobjects[self._HOURLY_SCHEDULE]:
-      return
-    # todo: revise ventilation with Pilar
-    self._idf.newidfobject(self._VENTILATION,
-                           Name=f'{zone_name}_ventilation',
-                           Zone_or_ZoneList_Name=zone_name,
-                           Schedule_Name=schedule,
-                           Design_Flow_Rate_Calculation_Method='AirChanges/Hour',
-                           Flow_Rate_per_Zone_Floor_Area=thermal_zone.mechanical_air_change
-                           )
+      schedule = f'Ventilation schedules {thermal_zone.usage_name}'
+      #if schedule not in self._idf.idfobjects[self._HOURLY_SCHEDULE]:
+      #  return
+      # todo: revise ventilation with Pilar
+      self._idf.newidfobject(self._VENTILATION,
+                             Name=f'{zone_name}_ventilation',
+                             Zone_or_ZoneList_Name=zone_name,
+                             Schedule_Name=schedule,
+                             Design_Flow_Rate_Calculation_Method='AirChanges/Hour',
+                             Air_Changes_per_Hour=thermal_zone.mechanical_air_change
+                             )
 
   def _add_dhw(self, thermal_zone, zone_name):
     peak_flow_rate = thermal_zone.domestic_hot_water.peak_flow * thermal_zone.total_floor_area
@@ -510,8 +510,8 @@ class Idf:
           if building.name in self._target_buildings or building.name in self._adjacent_buildings:
             _new_schedules = self._create_infiltration_schedules(thermal_zone)
             self._add_schedules(usage, 'Infiltration', _new_schedules)
-            _new_schedules2 = self._create_ventilation_schedules(thermal_zone)
-            self._add_schedules(usage, 'Ventilation', _new_schedules2)
+            _new_schedules = self._create_ventilation_schedules(thermal_zone)
+            self._add_schedules(usage, 'Ventilation', _new_schedules)
             self._add_schedules(usage, 'Occupancy', thermal_zone.occupancy.occupancy_schedules)
             self._add_schedules(usage, 'HVAC AVAIL', thermal_zone.thermal_control.hvac_availability_schedules)
             self._add_schedules(usage, 'Heating thermostat', thermal_zone.thermal_control.heating_set_point_schedules)
@@ -536,6 +536,7 @@ class Idf:
             self._add_zone(thermal_zone, building.name)
             self._add_heating_system(thermal_zone, building.name)
             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)