diff --git a/src/app/db/schema/landlord_overrides.ts b/src/app/db/schema/landlord_overrides.ts
index 4dc6ea2c..c032339b 100644
--- a/src/app/db/schema/landlord_overrides.ts
+++ b/src/app/db/schema/landlord_overrides.ts
@@ -213,6 +213,17 @@ export const MainHeatingSystemValues: [string, ...string[]] = [
   "Electric storage heaters, convector",
   "Electric storage heaters, fan",
   "Direct-acting electric",
+  "Electric room heaters",
+  "Solid fuel room heater, closed",
+  "Air source heat pump",
+  "Community heating, boilers",
+  "Community heating, CHP and boilers",
+  "Oil room heater, 2000 or later",
+  "Gas room heater, condensing fire",
+  "Gas room heater, decorative fuel-effect",
+  "Gas room heater, flush live-effect",
+  "Gas room heater, open flue 1980 or later",
+  "Gas room heater, open flue pre-1980",
   "Unknown",
 ];