diff --git a/homeassistant/components/incomfort/__init__.py b/homeassistant/components/incomfort/__init__.py
index 722518ba6c2..249a0ae9085 100644
--- a/homeassistant/components/incomfort/__init__.py
+++ b/homeassistant/components/incomfort/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.helpers import device_registry as dr
 
 from .const import DOMAIN
 from .coordinator import InComfortDataCoordinator, async_connect_gateway
-from .errors import InConfortTimeout, InConfortUnknownError, NoHeaters, NotFound
+from .errors import InComfortTimeout, InComfortUnknownError, NoHeaters, NotFound
 
 PLATFORMS = (
     Platform.WATER_HEATER,
@@ -40,9 +40,9 @@ async def async_setup_entry(hass: HomeAssistant, entry: InComfortConfigEntry) ->
     except ClientResponseError as exc:
         if exc.status == 404:
             raise NotFound from exc
-        raise InConfortUnknownError from exc
+        raise InComfortUnknownError from exc
     except TimeoutError as exc:
-        raise InConfortTimeout from exc
+        raise InComfortTimeout from exc
 
     # Register discovered gateway device
     device_registry = dr.async_get(hass)
diff --git a/homeassistant/components/incomfort/errors.py b/homeassistant/components/incomfort/errors.py
index 93a29d05bb8..c367916d6c7 100644
--- a/homeassistant/components/incomfort/errors.py
+++ b/homeassistant/components/incomfort/errors.py
@@ -1,32 +1,33 @@
 """Exceptions raised by Intergas InComfort integration."""
 
-from homeassistant.core import DOMAIN as HOMEASSISTANT_DOMAIN
 from homeassistant.exceptions import ConfigEntryNotReady, HomeAssistantError
 
+from .const import DOMAIN
+
 
 class NotFound(HomeAssistantError):
     """Raise exception if no Lan2RF Gateway was found."""
 
-    translation_domain = HOMEASSISTANT_DOMAIN
+    translation_domain = DOMAIN
     translation_key = "not_found"
 
 
 class NoHeaters(ConfigEntryNotReady):
     """Raise exception if no heaters are found."""
 
-    translation_domain = HOMEASSISTANT_DOMAIN
+    translation_domain = DOMAIN
     translation_key = "no_heaters"
 
 
-class InConfortTimeout(ConfigEntryNotReady):
+class InComfortTimeout(ConfigEntryNotReady):
     """Raise exception if no heaters are found."""
 
-    translation_domain = HOMEASSISTANT_DOMAIN
+    translation_domain = DOMAIN
     translation_key = "timeout_error"
 
 
-class InConfortUnknownError(ConfigEntryNotReady):
+class InComfortUnknownError(ConfigEntryNotReady):
     """Raise exception if no heaters are found."""
 
-    translation_domain = HOMEASSISTANT_DOMAIN
+    translation_domain = DOMAIN
     translation_key = "unknown"
diff --git a/homeassistant/components/incomfort/strings.json b/homeassistant/components/incomfort/strings.json
index a59dc71d87f..4c47d4c57ad 100644
--- a/homeassistant/components/incomfort/strings.json
+++ b/homeassistant/components/incomfort/strings.json
@@ -49,8 +49,22 @@
       "auth_error": "Invalid credentials.",
       "no_heaters": "No heaters found.",
       "not_found": "No Lan2RF gateway found.",
-      "timeout_error": "Time out when connection to Lan2RF gateway.",
-      "unknown": "Unknown error when connection to Lan2RF gateway."
+      "timeout_error": "Time out when connecting to Lan2RF gateway.",
+      "unknown": "Unknown error when connecting to Lan2RF gateway."
+    }
+  },
+  "exceptions": {
+    "no_heaters": {
+      "message": "[%key:component::incomfort::config::error::no_heaters%]"
+    },
+    "not_found": {
+      "message": "[%key:component::incomfort::config::error::not_found%]"
+    },
+    "timeout_error": {
+      "message": "[%key:component::incomfort::config::error::timeout_error%]"
+    },
+    "unknown": {
+      "message": "[%key:component::incomfort::config::error::unknown%]"
     }
   },
   "options": {