diff --git a/etl/epc_clean/epc_attributes/MainheatAttributes.py b/etl/epc_clean/epc_attributes/MainheatAttributes.py
index ea61c3b4..52dc1bc7 100644
--- a/etl/epc_clean/epc_attributes/MainheatAttributes.py
+++ b/etl/epc_clean/epc_attributes/MainheatAttributes.py
@@ -166,6 +166,11 @@ class MainHeatAttributes(Definitions):
             self.is_edge_case = True
             return
 
+        if self.description == ', mains gas':
+            self.edge_case_result['has_mains_gas'] = True
+            self.is_edge_case = True
+            return
+
         if self.description == 'community, community':
             self.edge_case_result['has_community_scheme'] = True
             self.is_edge_case = True