diff --git a/homeassistant/components/incomfort/binary_sensor.py b/homeassistant/components/incomfort/binary_sensor.py
index a94e1fac504..45da990d44f 100644
--- a/homeassistant/components/incomfort/binary_sensor.py
+++ b/homeassistant/components/incomfort/binary_sensor.py
@@ -20,6 +20,8 @@ from . import InComfortConfigEntry
 from .coordinator import InComfortDataCoordinator
 from .entity import IncomfortBoilerEntity
 
+PARALLEL_UPDATES = 0
+
 
 @dataclass(frozen=True, kw_only=True)
 class IncomfortBinarySensorEntityDescription(BinarySensorEntityDescription):
diff --git a/homeassistant/components/incomfort/climate.py b/homeassistant/components/incomfort/climate.py
index 41470180051..caebcfdb23b 100644
--- a/homeassistant/components/incomfort/climate.py
+++ b/homeassistant/components/incomfort/climate.py
@@ -22,6 +22,8 @@ from .const import DOMAIN
 from .coordinator import InComfortDataCoordinator
 from .entity import IncomfortEntity
 
+PARALLEL_UPDATES = 1
+
 
 async def async_setup_entry(
     hass: HomeAssistant,
diff --git a/homeassistant/components/incomfort/sensor.py b/homeassistant/components/incomfort/sensor.py
index e0d6740f1d4..e3cc52fb3a7 100644
--- a/homeassistant/components/incomfort/sensor.py
+++ b/homeassistant/components/incomfort/sensor.py
@@ -22,6 +22,8 @@ from . import InComfortConfigEntry
 from .coordinator import InComfortDataCoordinator
 from .entity import IncomfortBoilerEntity
 
+PARALLEL_UPDATES = 0
+
 
 @dataclass(frozen=True, kw_only=True)
 class IncomfortSensorEntityDescription(SensorEntityDescription):
diff --git a/homeassistant/components/incomfort/water_heater.py b/homeassistant/components/incomfort/water_heater.py
index e7620ac2a1a..5b676b3b7ff 100644
--- a/homeassistant/components/incomfort/water_heater.py
+++ b/homeassistant/components/incomfort/water_heater.py
@@ -20,6 +20,8 @@ _LOGGER = logging.getLogger(__name__)
 
 HEATER_ATTRS = ["display_code", "display_text", "is_burning"]
 
+PARALLEL_UPDATES = 0
+
 
 async def async_setup_entry(
     hass: HomeAssistant,