diff --git a/model_data/epc_attributes/HotWaterAttributes.py b/model_data/epc_attributes/HotWaterAttributes.py
index 92ad8818..b117a9c5 100644
--- a/model_data/epc_attributes/HotWaterAttributes.py
+++ b/model_data/epc_attributes/HotWaterAttributes.py
@@ -95,7 +95,8 @@ class HotWaterAttributes(Definitions):
 
     WELSH_TEXT = {
         "ogçör brif system": "from main system",
-        "ogçör brif system, adfer gwres nwyon ffliw": "from main system, flue gas heat recovery"
+        "ogçör brif system, adfer gwres nwyon ffliw": "from main system, flue gas heat recovery",
+        "bwyler/cylchredydd nwy": "gas boiler/circulator"
     }
 
     def __init__(self, description: str):
diff --git a/model_data/epc_attributes/WindowAttributes.py b/model_data/epc_attributes/WindowAttributes.py
index a0985870..4fc20b03 100644
--- a/model_data/epc_attributes/WindowAttributes.py
+++ b/model_data/epc_attributes/WindowAttributes.py
@@ -19,6 +19,7 @@ class WindowAttributes(Definitions):
 
     WELSH_TEXT = {
         "gwydrau dwbl llawn": "full double glazing",
+        "gwydrau dwbl rhannol": "partial double glazing"
     }
 
     def __init__(self, description: str):
diff --git a/model_data/tests/test_data/test_window_attributes_cases.py b/model_data/tests/test_data/test_window_attributes_cases.py
index 41162e5f..a4c6ba64 100644
--- a/model_data/tests/test_data/test_window_attributes_cases.py
+++ b/model_data/tests/test_data/test_window_attributes_cases.py
@@ -37,5 +37,7 @@ windows_cases = [
     {'original_description': 'Some triple glazing', 'has_glazing': True, 'glazing_coverage': 'partial',
      'glazing_type': 'triple', 'no_data': False},
     {'original_description': 'Gwydrau dwbl llawn', 'has_glazing': True, 'glazing_coverage': 'full',
-     'glazing_type': 'double', 'no_data': False}
+     'glazing_type': 'double', 'no_data': False},
+    {'original_description': 'Gwydrau dwbl rhannol', 'has_glazing': True, 'glazing_coverage': 'partial',
+     'glazing_type': 'double', 'no_data': False},
 ]