Hive water heater - Remove Duplication of appending entities (#25210)

* climate_water_heater

* updated names

* Update water_heater

* Update requirements

* Updated reqirements

* Version update

* updated Versiojn

* Update device list

* Removed unused Attributes

* removed duplicate appending entities

* re-added missing hotwater

* Move call to async_added_to_hass

* Move session append to async_added_to_hass

* White space

homeassistant/components/hive/climate.py

@@ -35,7 +35,6 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
     climate = HiveClimateEntity(session, discovery_info)
 
     add_entities([climate])
-    session.entities.append(climate)
 
 
 class HiveClimateEntity(ClimateDevice):
@@ -52,7 +51,6 @@ class HiveClimateEntity(ClimateDevice):
         self.data_updatesource = '{}.{}'.format(
             self.device_type, self.node_id)
         self._unique_id = '{}-{}'.format(self.node_id, self.device_type)
-        self.session.entities.append(self)
 
     @property
     def unique_id(self):
@@ -145,6 +143,11 @@ class HiveClimateEntity(ClimateDevice):
         """Return a list of available preset modes."""
         return SUPPORT_PRESET
 
+    async def async_added_to_hass(self):
+        """When entity is added to Home Assistant."""
+        await super().async_added_to_hass()
+        self.session.entities.append(self)
+
     def set_hvac_mode(self, hvac_mode):
         """Set new target hvac mode."""
         new_mode = HASS_TO_HIVE_STATE[hvac_mode]