diff --git a/recommendations/HeatingRecommender.py b/recommendations/HeatingRecommender.py
index c7064274..676a4b06 100644
--- a/recommendations/HeatingRecommender.py
+++ b/recommendations/HeatingRecommender.py
@@ -233,6 +233,8 @@ class HeatingRecommender:
         :return:
         """
 
+        recommendation_phase = phase
+
         # We now recommend boiler upgrades, if applicable
         if self.property.data["mainheat-energy-eff"] in ["Very Poor", "Poor", "Average"]:
             boiler_size = self.estimate_boiler_size(
@@ -252,7 +254,7 @@ class HeatingRecommender:
 
             self.recommendations.append(
                 {
-                    "phase": phase,
+                    "phase": recommendation_phase,
                     "parts": [
                         # TODO
                     ],
@@ -261,16 +263,21 @@ class HeatingRecommender:
                     "starting_u_value": None,
                     "new_u_value": None,
                     "sap_points": None,
+                    "simulation_config": {"mainheat_energy_eff_ending": "Good"},
                     **self.costs.low_carbon_boiler(is_combi=is_combi, size=f"{boiler_size}kw")
                 }
             )
 
+            # We increment the recommendation phase, in the case of us having heating control recommendations
+            recommendation_phase += 1
+
         # We recommend the heating controls
         controls_recommender = HeatingControlRecommender(self.property)
         controls_recommender.recommend(heating_description="Boiler and radiators, mains gas")
         # We may have 2 recommendations from the heating controls
 
-        # The heating controls recommendation is distrinct from the boiler upgrade recommendation
-        # We insert phase into the recommendations for heating controls
-        for recommendation in controls_recommender.recommendation:
-            recommendation["phase"] = phase
+        if controls_recommender.recommendation:
+            # The heating controls recommendation is distrinct from the boiler upgrade recommendation
+            # We insert phase into the recommendations for heating controls
+            for recommendation in controls_recommender.recommendation:
+                recommendation["phase"] = recommendation_phase