diff --git a/message_ix_buildings/chilled/core/climate.py b/message_ix_buildings/chilled/core/climate.py
index 212b82f..632e2ad 100644
--- a/message_ix_buildings/chilled/core/climate.py
+++ b/message_ix_buildings/chilled/core/climate.py
@@ -804,7 +804,7 @@ def aggregate_urban_rural_files(config: "Config"):
                 )
 
             if config.heat == 1:
-                varlist.extend(["t_bal_h", "vdd_h", "qh", "E_h"])
+                varlist.extend(["Nd", "Nf", "t_bal_h", "vdd_h", "qh", "E_h"])
 
             comp = {"zlib": True}