diff --git a/homeassistant/components/flexit_bacnet/number.py b/homeassistant/components/flexit_bacnet/number.py
index 6e6e2eea980..029ce896445 100644
--- a/homeassistant/components/flexit_bacnet/number.py
+++ b/homeassistant/components/flexit_bacnet/number.py
@@ -29,6 +29,8 @@ class FlexitNumberEntityDescription(NumberEntityDescription):
     """Describes a Flexit number entity."""
 
     native_value_fn: Callable[[FlexitBACnet], float]
+    native_max_value_fn: Callable[[FlexitBACnet], int]
+    native_min_value_fn: Callable[[FlexitBACnet], int]
     set_native_value_fn: Callable[[FlexitBACnet], Callable[[int], Awaitable[None]]]
 
 
@@ -37,121 +39,121 @@ NUMBERS: tuple[FlexitNumberEntityDescription, ...] = (
         key="away_extract_fan_setpoint",
         translation_key="away_extract_fan_setpoint",
         device_class=NumberDeviceClass.POWER_FACTOR,
-        native_min_value=0,
-        native_max_value=100,
         native_step=1,
         mode=NumberMode.SLIDER,
         native_value_fn=lambda device: device.fan_setpoint_extract_air_away,
         set_native_value_fn=lambda device: device.set_fan_setpoint_extract_air_away,
         native_unit_of_measurement=PERCENTAGE,
+        native_max_value_fn=lambda device: int(device.fan_setpoint_extract_air_home),
+        native_min_value_fn=lambda _: 30,
     ),
     FlexitNumberEntityDescription(
         key="away_supply_fan_setpoint",
         translation_key="away_supply_fan_setpoint",
         device_class=NumberDeviceClass.POWER_FACTOR,
-        native_min_value=0,
-        native_max_value=100,
         native_step=1,
         mode=NumberMode.SLIDER,
         native_value_fn=lambda device: device.fan_setpoint_supply_air_away,
         set_native_value_fn=lambda device: device.set_fan_setpoint_supply_air_away,
         native_unit_of_measurement=PERCENTAGE,
+        native_max_value_fn=lambda device: int(device.fan_setpoint_supply_air_home),
+        native_min_value_fn=lambda _: 30,
     ),
     FlexitNumberEntityDescription(
         key="cooker_hood_extract_fan_setpoint",
         translation_key="cooker_hood_extract_fan_setpoint",
         device_class=NumberDeviceClass.POWER_FACTOR,
-        native_min_value=0,
-        native_max_value=100,
         native_step=1,
         mode=NumberMode.SLIDER,
         native_value_fn=lambda device: device.fan_setpoint_extract_air_cooker,
         set_native_value_fn=lambda device: device.set_fan_setpoint_extract_air_cooker,
         native_unit_of_measurement=PERCENTAGE,
+        native_max_value_fn=lambda _: 100,
+        native_min_value_fn=lambda _: 30,
     ),
     FlexitNumberEntityDescription(
         key="cooker_hood_supply_fan_setpoint",
         translation_key="cooker_hood_supply_fan_setpoint",
         device_class=NumberDeviceClass.POWER_FACTOR,
-        native_min_value=0,
-        native_max_value=100,
         native_step=1,
         mode=NumberMode.SLIDER,
         native_value_fn=lambda device: device.fan_setpoint_supply_air_cooker,
         set_native_value_fn=lambda device: device.set_fan_setpoint_supply_air_cooker,
         native_unit_of_measurement=PERCENTAGE,
+        native_max_value_fn=lambda _: 100,
+        native_min_value_fn=lambda _: 30,
     ),
     FlexitNumberEntityDescription(
         key="fireplace_extract_fan_setpoint",
         translation_key="fireplace_extract_fan_setpoint",
         device_class=NumberDeviceClass.POWER_FACTOR,
-        native_min_value=0,
-        native_max_value=100,
         native_step=1,
         mode=NumberMode.SLIDER,
         native_value_fn=lambda device: device.fan_setpoint_extract_air_fire,
         set_native_value_fn=lambda device: device.set_fan_setpoint_extract_air_fire,
         native_unit_of_measurement=PERCENTAGE,
+        native_max_value_fn=lambda _: 100,
+        native_min_value_fn=lambda _: 30,
     ),
     FlexitNumberEntityDescription(
         key="fireplace_supply_fan_setpoint",
         translation_key="fireplace_supply_fan_setpoint",
         device_class=NumberDeviceClass.POWER_FACTOR,
-        native_min_value=0,
-        native_max_value=100,
         native_step=1,
         mode=NumberMode.SLIDER,
         native_value_fn=lambda device: device.fan_setpoint_supply_air_fire,
         set_native_value_fn=lambda device: device.set_fan_setpoint_supply_air_fire,
         native_unit_of_measurement=PERCENTAGE,
+        native_max_value_fn=lambda _: 100,
+        native_min_value_fn=lambda _: 30,
     ),
     FlexitNumberEntityDescription(
         key="high_extract_fan_setpoint",
         translation_key="high_extract_fan_setpoint",
         device_class=NumberDeviceClass.POWER_FACTOR,
-        native_min_value=0,
-        native_max_value=100,
         native_step=1,
         mode=NumberMode.SLIDER,
         native_value_fn=lambda device: device.fan_setpoint_extract_air_high,
         set_native_value_fn=lambda device: device.set_fan_setpoint_extract_air_high,
         native_unit_of_measurement=PERCENTAGE,
+        native_max_value_fn=lambda _: 100,
+        native_min_value_fn=lambda device: int(device.fan_setpoint_extract_air_home),
     ),
     FlexitNumberEntityDescription(
         key="high_supply_fan_setpoint",
         translation_key="high_supply_fan_setpoint",
         device_class=NumberDeviceClass.POWER_FACTOR,
-        native_min_value=0,
-        native_max_value=100,
         native_step=1,
         mode=NumberMode.SLIDER,
         native_value_fn=lambda device: device.fan_setpoint_supply_air_high,
         set_native_value_fn=lambda device: device.set_fan_setpoint_supply_air_high,
         native_unit_of_measurement=PERCENTAGE,
+        native_max_value_fn=lambda _: 100,
+        native_min_value_fn=lambda device: int(device.fan_setpoint_supply_air_home),
     ),
     FlexitNumberEntityDescription(
         key="home_extract_fan_setpoint",
         translation_key="home_extract_fan_setpoint",
         device_class=NumberDeviceClass.POWER_FACTOR,
-        native_min_value=0,
-        native_max_value=100,
         native_step=1,
         mode=NumberMode.SLIDER,
         native_value_fn=lambda device: device.fan_setpoint_extract_air_home,
         set_native_value_fn=lambda device: device.set_fan_setpoint_extract_air_home,
         native_unit_of_measurement=PERCENTAGE,
+        native_max_value_fn=lambda _: 100,
+        native_min_value_fn=lambda device: int(device.fan_setpoint_extract_air_away),
     ),
     FlexitNumberEntityDescription(
         key="home_supply_fan_setpoint",
         translation_key="home_supply_fan_setpoint",
         device_class=NumberDeviceClass.POWER_FACTOR,
-        native_min_value=0,
-        native_max_value=100,
         native_step=1,
         mode=NumberMode.SLIDER,
         native_value_fn=lambda device: device.fan_setpoint_supply_air_home,
         set_native_value_fn=lambda device: device.set_fan_setpoint_supply_air_home,
         native_unit_of_measurement=PERCENTAGE,
+        native_max_value_fn=lambda _: 100,
+        native_min_value_fn=lambda device: int(device.fan_setpoint_supply_air_away),
     ),
 )
 
@@ -192,6 +194,16 @@ class FlexitNumber(FlexitEntity, NumberEntity):
         """Return the state of the number."""
         return self.entity_description.native_value_fn(self.coordinator.device)
 
+    @property
+    def native_max_value(self) -> float:
+        """Return the native max value of the number."""
+        return self.entity_description.native_max_value_fn(self.coordinator.device)
+
+    @property
+    def native_min_value(self) -> float:
+        """Return the native min value of the number."""
+        return self.entity_description.native_min_value_fn(self.coordinator.device)
+
     async def async_set_native_value(self, value: float) -> None:
         """Update the current value."""
         set_native_value_fn = self.entity_description.set_native_value_fn(
diff --git a/tests/components/flexit_bacnet/conftest.py b/tests/components/flexit_bacnet/conftest.py
index a6205bac506..6ce17261bfc 100644
--- a/tests/components/flexit_bacnet/conftest.py
+++ b/tests/components/flexit_bacnet/conftest.py
@@ -69,16 +69,16 @@ def mock_flexit_bacnet() -> Generator[AsyncMock]:
         flexit_bacnet.electric_heater = True
 
         # Mock fan setpoints
-        flexit_bacnet.fan_setpoint_extract_air_fire = 10
-        flexit_bacnet.fan_setpoint_supply_air_fire = 20
-        flexit_bacnet.fan_setpoint_extract_air_away = 30
-        flexit_bacnet.fan_setpoint_supply_air_away = 40
-        flexit_bacnet.fan_setpoint_extract_air_home = 50
-        flexit_bacnet.fan_setpoint_supply_air_home = 60
-        flexit_bacnet.fan_setpoint_extract_air_high = 70
-        flexit_bacnet.fan_setpoint_supply_air_high = 80
-        flexit_bacnet.fan_setpoint_extract_air_cooker = 90
-        flexit_bacnet.fan_setpoint_supply_air_cooker = 100
+        flexit_bacnet.fan_setpoint_extract_air_fire = 56
+        flexit_bacnet.fan_setpoint_supply_air_fire = 77
+        flexit_bacnet.fan_setpoint_extract_air_away = 40
+        flexit_bacnet.fan_setpoint_supply_air_away = 42
+        flexit_bacnet.fan_setpoint_extract_air_home = 70
+        flexit_bacnet.fan_setpoint_supply_air_home = 74
+        flexit_bacnet.fan_setpoint_extract_air_high = 100
+        flexit_bacnet.fan_setpoint_supply_air_high = 100
+        flexit_bacnet.fan_setpoint_extract_air_cooker = 50
+        flexit_bacnet.fan_setpoint_supply_air_cooker = 70
 
         yield flexit_bacnet
 
diff --git a/tests/components/flexit_bacnet/snapshots/test_number.ambr b/tests/components/flexit_bacnet/snapshots/test_number.ambr
index c4fb1e7c434..78eefd08345 100644
--- a/tests/components/flexit_bacnet/snapshots/test_number.ambr
+++ b/tests/components/flexit_bacnet/snapshots/test_number.ambr
@@ -5,8 +5,8 @@
     }),
     'area_id': None,
     'capabilities': dict({
-      'max': 100,
-      'min': 0,
+      'max': 70,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
     }),
@@ -42,8 +42,8 @@
     'attributes': ReadOnlyDict({
       'device_class': 'power_factor',
       'friendly_name': 'Device Name Away extract fan setpoint',
-      'max': 100,
-      'min': 0,
+      'max': 70,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
       'unit_of_measurement': '%',
@@ -53,7 +53,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '30',
+    'state': '40',
   })
 # ---
 # name: test_numbers[number.device_name_away_supply_fan_setpoint-entry]
@@ -62,8 +62,8 @@
     }),
     'area_id': None,
     'capabilities': dict({
-      'max': 100,
-      'min': 0,
+      'max': 74,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
     }),
@@ -99,8 +99,8 @@
     'attributes': ReadOnlyDict({
       'device_class': 'power_factor',
       'friendly_name': 'Device Name Away supply fan setpoint',
-      'max': 100,
-      'min': 0,
+      'max': 74,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
       'unit_of_measurement': '%',
@@ -110,7 +110,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '40',
+    'state': '42',
   })
 # ---
 # name: test_numbers[number.device_name_cooker_hood_extract_fan_setpoint-entry]
@@ -120,7 +120,7 @@
     'area_id': None,
     'capabilities': dict({
       'max': 100,
-      'min': 0,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
     }),
@@ -157,7 +157,7 @@
       'device_class': 'power_factor',
       'friendly_name': 'Device Name Cooker hood extract fan setpoint',
       'max': 100,
-      'min': 0,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
       'unit_of_measurement': '%',
@@ -167,7 +167,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '90',
+    'state': '50',
   })
 # ---
 # name: test_numbers[number.device_name_cooker_hood_supply_fan_setpoint-entry]
@@ -177,7 +177,7 @@
     'area_id': None,
     'capabilities': dict({
       'max': 100,
-      'min': 0,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
     }),
@@ -214,7 +214,7 @@
       'device_class': 'power_factor',
       'friendly_name': 'Device Name Cooker hood supply fan setpoint',
       'max': 100,
-      'min': 0,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
       'unit_of_measurement': '%',
@@ -224,7 +224,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '100',
+    'state': '70',
   })
 # ---
 # name: test_numbers[number.device_name_fireplace_extract_fan_setpoint-entry]
@@ -234,7 +234,7 @@
     'area_id': None,
     'capabilities': dict({
       'max': 100,
-      'min': 0,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
     }),
@@ -271,7 +271,7 @@
       'device_class': 'power_factor',
       'friendly_name': 'Device Name Fireplace extract fan setpoint',
       'max': 100,
-      'min': 0,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
       'unit_of_measurement': '%',
@@ -281,7 +281,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '10',
+    'state': '56',
   })
 # ---
 # name: test_numbers[number.device_name_fireplace_supply_fan_setpoint-entry]
@@ -291,7 +291,7 @@
     'area_id': None,
     'capabilities': dict({
       'max': 100,
-      'min': 0,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
     }),
@@ -328,7 +328,7 @@
       'device_class': 'power_factor',
       'friendly_name': 'Device Name Fireplace supply fan setpoint',
       'max': 100,
-      'min': 0,
+      'min': 30,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
       'unit_of_measurement': '%',
@@ -338,7 +338,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '20',
+    'state': '77',
   })
 # ---
 # name: test_numbers[number.device_name_high_extract_fan_setpoint-entry]
@@ -348,7 +348,7 @@
     'area_id': None,
     'capabilities': dict({
       'max': 100,
-      'min': 0,
+      'min': 70,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
     }),
@@ -385,7 +385,7 @@
       'device_class': 'power_factor',
       'friendly_name': 'Device Name High extract fan setpoint',
       'max': 100,
-      'min': 0,
+      'min': 70,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
       'unit_of_measurement': '%',
@@ -395,7 +395,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '70',
+    'state': '100',
   })
 # ---
 # name: test_numbers[number.device_name_high_supply_fan_setpoint-entry]
@@ -405,7 +405,7 @@
     'area_id': None,
     'capabilities': dict({
       'max': 100,
-      'min': 0,
+      'min': 74,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
     }),
@@ -442,7 +442,7 @@
       'device_class': 'power_factor',
       'friendly_name': 'Device Name High supply fan setpoint',
       'max': 100,
-      'min': 0,
+      'min': 74,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
       'unit_of_measurement': '%',
@@ -452,7 +452,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '80',
+    'state': '100',
   })
 # ---
 # name: test_numbers[number.device_name_home_extract_fan_setpoint-entry]
@@ -462,7 +462,7 @@
     'area_id': None,
     'capabilities': dict({
       'max': 100,
-      'min': 0,
+      'min': 40,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
     }),
@@ -499,7 +499,7 @@
       'device_class': 'power_factor',
       'friendly_name': 'Device Name Home extract fan setpoint',
       'max': 100,
-      'min': 0,
+      'min': 40,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
       'unit_of_measurement': '%',
@@ -509,7 +509,7 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '50',
+    'state': '70',
   })
 # ---
 # name: test_numbers[number.device_name_home_supply_fan_setpoint-entry]
@@ -519,7 +519,7 @@
     'area_id': None,
     'capabilities': dict({
       'max': 100,
-      'min': 0,
+      'min': 42,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
     }),
@@ -556,7 +556,7 @@
       'device_class': 'power_factor',
       'friendly_name': 'Device Name Home supply fan setpoint',
       'max': 100,
-      'min': 0,
+      'min': 42,
       'mode': <NumberMode.SLIDER: 'slider'>,
       'step': 1,
       'unit_of_measurement': '%',
@@ -566,6 +566,6 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '60',
+    'state': '74',
   })
 # ---
diff --git a/tests/components/flexit_bacnet/test_number.py b/tests/components/flexit_bacnet/test_number.py
index ad49908fa96..f566b623f12 100644
--- a/tests/components/flexit_bacnet/test_number.py
+++ b/tests/components/flexit_bacnet/test_number.py
@@ -64,21 +64,21 @@ async def test_numbers_implementation(
     assert len(mocked_method.mock_calls) == 1
     assert hass.states.get(ENTITY_ID).state == "60"
 
-    mock_flexit_bacnet.fan_setpoint_supply_air_fire = 10
+    mock_flexit_bacnet.fan_setpoint_supply_air_fire = 40
 
     await hass.services.async_call(
         NUMBER_DOMAIN,
         SERVICE_SET_VALUE,
         {
             ATTR_ENTITY_ID: ENTITY_ID,
-            ATTR_VALUE: 10,
+            ATTR_VALUE: 40,
         },
         blocking=True,
     )
 
     mocked_method = getattr(mock_flexit_bacnet, "set_fan_setpoint_supply_air_fire")
     assert len(mocked_method.mock_calls) == 2
-    assert hass.states.get(ENTITY_ID).state == "10"
+    assert hass.states.get(ENTITY_ID).state == "40"
 
     # Error recovery, when setting the value
     mock_flexit_bacnet.set_fan_setpoint_supply_air_fire.side_effect = DecodingError
@@ -89,7 +89,7 @@ async def test_numbers_implementation(
             SERVICE_SET_VALUE,
             {
                 ATTR_ENTITY_ID: ENTITY_ID,
-                ATTR_VALUE: 10,
+                ATTR_VALUE: 40,
             },
             blocking=True,
         )