diff --git a/datatypes/epc/domain/mapper.py b/datatypes/epc/domain/mapper.py
index 46703be36..6719018be 100644
--- a/datatypes/epc/domain/mapper.py
+++ b/datatypes/epc/domain/mapper.py
@@ -7120,6 +7120,11 @@ _PASHUB_MAIN_FUEL_TO_SAP10: Dict[str, int] = {
     # (see `_ELMHURST_MAIN_FUEL_TO_SAP10`). Last residual cohort label that
     # parse-raised `UnmappedPasHubLabel` (#1558).
     "Bulk LPG": 27,
+    # Room-heater dual-fuel appliance (mineral + wood). 10 = epc_codes
+    # `main_fuel` "dual fuel (mineral and wood)" (Table 32 code 10), the code
+    # the landlord-override and prediction paths use for the same fuel. Surfaced
+    # once the extractor captured the `Fuel:`-form label it had been dropping.
+    "Dual fuel appliance (mineral and wood)": 10,
     "Electricity": 30,  # the standard-electricity fuel code
 }