diff --git a/backend/Property.py b/backend/Property.py
index b1cf2d16..eadefc48 100644
--- a/backend/Property.py
+++ b/backend/Property.py
@@ -521,6 +521,7 @@ class Property:
             if recommendation["type"] in [
                 "heating", "hot_water_tank_insulation", "heating_control", "secondary_heating",
                 "internal_wall_insulation", "external_wall_insulation", "cavity_wall_insulation",
+                "cylinder_thermostat"
             ]:
                 # We update the data, as defined in the recommendaton
                 if output["walls_insulation_thickness_ending"] is None:
@@ -544,7 +545,7 @@ class Property:
                 "loft_insulation", "room_roof_insulation", "flat_roof_insulation",
                 "solid_floor_insulation", "suspended_floor_insulation", "exposed_floor_insulation",
                 "windows_glazing", "solar_pv", "heating", "hot_water_tank_insulation",
-                "heating_control", "secondary_heating"
+                "heating_control", "secondary_heating", "cylinder_thermostat"
             ]:
                 raise NotImplementedError(
                     "Implement me, given type %s" % recommendation["type"]