diff --git a/.idea/Model.iml b/.idea/Model.iml
index c6561970..09f2e496 100644
--- a/.idea/Model.iml
+++ b/.idea/Model.iml
@@ -7,7 +7,7 @@
       <sourceFolder url="file://$MODULE_DIR$/open_uprn" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/recommendations" isTestSource="false" />
     </content>
-    <orderEntry type="jdk" jdkName="Fastapi-backend" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="AssetList" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
 </module>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 50cad4ca..fb10c6b0 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -3,7 +3,7 @@
   <component name="Black">
     <option name="sdkName" value="Python 3.10 (backend)" />
   </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="Fastapi-backend" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="AssetList" project-jdk-type="Python SDK" />
   <component name="PyCharmProfessionalAdvertiser">
     <option name="shown" value="true" />
   </component>
diff --git a/asset_list/app.py b/asset_list/app.py
index e431f723..1f0fe570 100644
--- a/asset_list/app.py
+++ b/asset_list/app.py
@@ -59,6 +59,40 @@ def app():
     Property UPRN
     """
 
+    # Dorrington
+    data_folder = "/Users/khalimconn-kowlessar/Documents/hestia/Customers/Dorrington"
+    data_filename = "Copy of Eco Funding.xlsx"
+    sheet_name = "Sheet1"
+    postcode_column = 'Postcode'
+    fulladdress_column = "Property Address"
+    address1_column = None
+    address1_method = "house_number_extraction"
+    address_cols_to_concat = []
+    missing_postcodes_method = None
+    landlord_year_built = None
+    landlord_os_uprn = None
+    landlord_property_type = None
+    landlord_built_form = None
+    landlord_wall_construction = None
+    landlord_heating_system = None
+    landlord_existing_pv = None
+    landlord_property_id = "Row ID"
+    outcomes_filename = []
+    outcomes_sheetname = []
+    outcomes_postcode = []
+    outcomes_houseno = []
+    outcomes_address = []
+    outcomes_id = []
+    master_filepaths = []
+    master_to_asset_list_filepath = None
+    asset_list_header = 0
+    landlord_block_reference = None
+    master_id_colnames = []
+    landlord_roof_construction = None
+    phase = False
+    landlord_sap = None
+    ecosurv_landlords = None
+
     # CDS
     data_folder = "/Users/khalimconn-kowlessar/Documents/hestia/Customers/CDS"
     data_filename = "Founder Estates - Asset List.xlsx"
diff --git a/backend/Property.py b/backend/Property.py
index 22eb2fc3..a8fd925b 100644
--- a/backend/Property.py
+++ b/backend/Property.py
@@ -1360,4 +1360,4 @@ class Property:
             'mechanical, supply and extract'
         ]
 
-        return self.data["mechanical-ventilation"] in ventilation_descriptions
+        return self.data.get("mechanical-ventilation") in ventilation_descriptions
diff --git a/etl/find_my_epc/RetrieveFindMyEpc.py b/etl/find_my_epc/RetrieveFindMyEpc.py
index 142d0cea..216a14de 100644
--- a/etl/find_my_epc/RetrieveFindMyEpc.py
+++ b/etl/find_my_epc/RetrieveFindMyEpc.py
@@ -678,6 +678,9 @@ class RetrieveFindMyEpc:
             "Internal wall insulation": ["internal_wall_insulation"],
             "High heat retention storage heaters and dual immersion cylinder and dual rate meter": [
                 "high_heat_retention_storage_heater"
+            ],
+            "High heat retention storage heaters and dual rate meter": [
+                "high_heat_retention_storage_heater"
             ]
         }