diff --git a/homeassistant/components/esphome/climate.py b/homeassistant/components/esphome/climate.py
index 73b326204b5..08ed2f1109d 100644
--- a/homeassistant/components/esphome/climate.py
+++ b/homeassistant/components/esphome/climate.py
@@ -173,8 +173,6 @@ class EsphomeClimateEntity(EsphomeEntity[ClimateInfo, ClimateState], ClimateEnti
             features |= ClimateEntityFeature.TARGET_TEMPERATURE
         if self._static_info.supports_target_humidity:
             features |= ClimateEntityFeature.TARGET_HUMIDITY
-        if self._static_info.supports_aux_heat:
-            features |= ClimateEntityFeature.AUX_HEAT
         if self.preset_modes:
             features |= ClimateEntityFeature.PRESET_MODE
         if self.fan_modes:
@@ -272,12 +270,6 @@ class EsphomeClimateEntity(EsphomeEntity[ClimateInfo, ClimateState], ClimateEnti
         """Return the humidity we try to reach."""
         return round(self._state.target_humidity)
 
-    @property
-    @esphome_state_property
-    def is_aux_heat(self) -> bool:
-        """Return the auxiliary heater state."""
-        return self._state.aux_heat
-
     async def async_set_temperature(self, **kwargs: Any) -> None:
         """Set new target temperature (and operation mode if set)."""
         data: dict[str, Any] = {"key": self._key}
@@ -326,11 +318,3 @@ class EsphomeClimateEntity(EsphomeEntity[ClimateInfo, ClimateState], ClimateEnti
         await self._client.climate_command(
             key=self._key, swing_mode=_SWING_MODES.from_hass(swing_mode)
         )
-
-    async def async_turn_aux_heat_on(self) -> None:
-        """Turn auxiliary heater on."""
-        await self._client.climate_command(key=self._key, aux_heat=True)
-
-    async def async_turn_aux_heat_off(self) -> None:
-        """Turn auxiliary heater off."""
-        await self._client.climate_command(key=self._key, aux_heat=False)
diff --git a/tests/components/esphome/test_climate.py b/tests/components/esphome/test_climate.py
index 8f0b8f96c56..065890fd623 100644
--- a/tests/components/esphome/test_climate.py
+++ b/tests/components/esphome/test_climate.py
@@ -15,7 +15,6 @@ from aioesphomeapi import (
 )
 
 from homeassistant.components.climate import (
-    ATTR_AUX_HEAT,
     ATTR_CURRENT_HUMIDITY,
     ATTR_FAN_MODE,
     ATTR_HUMIDITY,
@@ -29,7 +28,6 @@ from homeassistant.components.climate import (
     ATTR_TEMPERATURE,
     DOMAIN as CLIMATE_DOMAIN,
     FAN_HIGH,
-    SERVICE_SET_AUX_HEAT,
     SERVICE_SET_FAN_MODE,
     SERVICE_SET_HUMIDITY,
     SERVICE_SET_HVAC_MODE,
@@ -39,7 +37,7 @@ from homeassistant.components.climate import (
     SWING_BOTH,
     HVACMode,
 )
-from homeassistant.const import ATTR_ENTITY_ID, STATE_ON
+from homeassistant.const import ATTR_ENTITY_ID
 from homeassistant.core import HomeAssistant
 
 
@@ -321,68 +319,6 @@ async def test_climate_entity_with_step_and_target_temp(
     mock_client.climate_command.reset_mock()
 
 
-async def test_climate_entity_with_aux_heat(
-    hass: HomeAssistant, mock_client: APIClient, mock_generic_device_entry
-) -> None:
-    """Test a generic climate entity with aux heat."""
-    entity_info = [
-        ClimateInfo(
-            object_id="myclimate",
-            key=1,
-            name="my climate",
-            unique_id="my_climate",
-            supports_current_temperature=True,
-            supports_two_point_target_temperature=True,
-            supports_action=True,
-            visual_min_temperature=10.0,
-            visual_max_temperature=30.0,
-            supports_aux_heat=True,
-        )
-    ]
-    states = [
-        ClimateState(
-            key=1,
-            mode=ClimateMode.HEAT,
-            action=ClimateAction.HEATING,
-            current_temperature=30,
-            target_temperature=20,
-            fan_mode=ClimateFanMode.AUTO,
-            swing_mode=ClimateSwingMode.BOTH,
-            aux_heat=True,
-        )
-    ]
-    user_service = []
-    await mock_generic_device_entry(
-        mock_client=mock_client,
-        entity_info=entity_info,
-        user_service=user_service,
-        states=states,
-    )
-    state = hass.states.get("climate.test_myclimate")
-    assert state is not None
-    assert state.state == HVACMode.HEAT
-    attributes = state.attributes
-    assert attributes[ATTR_AUX_HEAT] == STATE_ON
-
-    await hass.services.async_call(
-        CLIMATE_DOMAIN,
-        SERVICE_SET_AUX_HEAT,
-        {ATTR_ENTITY_ID: "climate.test_myclimate", ATTR_AUX_HEAT: False},
-        blocking=True,
-    )
-    mock_client.climate_command.assert_has_calls([call(key=1, aux_heat=False)])
-    mock_client.climate_command.reset_mock()
-
-    await hass.services.async_call(
-        CLIMATE_DOMAIN,
-        SERVICE_SET_AUX_HEAT,
-        {ATTR_ENTITY_ID: "climate.test_myclimate", ATTR_AUX_HEAT: True},
-        blocking=True,
-    )
-    mock_client.climate_command.assert_has_calls([call(key=1, aux_heat=True)])
-    mock_client.climate_command.reset_mock()
-
-
 async def test_climate_entity_with_humidity(
     hass: HomeAssistant, mock_client: APIClient, mock_generic_device_entry
 ) -> None: