diff --git a/homeassistant/components/insteon/binary_sensor.py b/homeassistant/components/insteon/binary_sensor.py
index f895b9c7f6a..02af89dba01 100644
--- a/homeassistant/components/insteon/binary_sensor.py
+++ b/homeassistant/components/insteon/binary_sensor.py
@@ -76,12 +76,7 @@ class InsteonBinarySensorEntity(InsteonEntity, BinarySensorEntity):
     def __init__(self, device, group):
         """Initialize the INSTEON binary sensor."""
         super().__init__(device, group)
-        self._sensor_type = SENSOR_TYPES.get(self._insteon_device_group.name)
-
-    @property
-    def device_class(self):
-        """Return the class of this sensor."""
-        return self._sensor_type
+        self._attr_device_class = SENSOR_TYPES.get(self._insteon_device_group.name)
 
     @property
     def is_on(self):
diff --git a/homeassistant/components/insteon/climate.py b/homeassistant/components/insteon/climate.py
index 48ff898d6aa..74fb11491c0 100644
--- a/homeassistant/components/insteon/climate.py
+++ b/homeassistant/components/insteon/climate.py
@@ -88,6 +88,9 @@ class InsteonClimateEntity(InsteonEntity, ClimateEntity):
         | ClimateEntityFeature.TARGET_TEMPERATURE
         | ClimateEntityFeature.TARGET_TEMPERATURE_RANGE
     )
+    _attr_hvac_modes = list(HVAC_MODES.values())
+    _attr_fan_modes = list(FAN_MODES.values())
+    _attr_min_humidity = 1
 
     @property
     def temperature_unit(self) -> str:
@@ -106,11 +109,6 @@ class InsteonClimateEntity(InsteonEntity, ClimateEntity):
         """Return hvac operation ie. heat, cool mode."""
         return HVAC_MODES[self._insteon_device.groups[SYSTEM_MODE].value]
 
-    @property
-    def hvac_modes(self) -> list[HVACMode]:
-        """Return the list of available hvac operation modes."""
-        return list(HVAC_MODES.values())
-
     @property
     def current_temperature(self) -> float | None:
         """Return the current temperature."""
@@ -144,11 +142,6 @@ class InsteonClimateEntity(InsteonEntity, ClimateEntity):
         """Return the fan setting."""
         return FAN_MODES[self._insteon_device.groups[FAN_MODE].value]
 
-    @property
-    def fan_modes(self) -> list[str] | None:
-        """Return the list of available fan modes."""
-        return list(FAN_MODES.values())
-
     @property
     def target_humidity(self) -> int | None:
         """Return the humidity we try to reach."""
@@ -157,11 +150,6 @@ class InsteonClimateEntity(InsteonEntity, ClimateEntity):
         # May not be loaded yet so return a default if required
         return (high + low) / 2 if high and low else None
 
-    @property
-    def min_humidity(self) -> int:
-        """Return the minimum humidity."""
-        return 1
-
     @property
     def hvac_action(self) -> HVACAction:
         """Return the current running hvac operation if supported.
diff --git a/homeassistant/components/insteon/fan.py b/homeassistant/components/insteon/fan.py
index 92f56098a91..da9e3de6422 100644
--- a/homeassistant/components/insteon/fan.py
+++ b/homeassistant/components/insteon/fan.py
@@ -50,6 +50,7 @@ class InsteonFanEntity(InsteonEntity, FanEntity):
     """An INSTEON fan entity."""
 
     _attr_supported_features = FanEntityFeature.SET_SPEED
+    _attr_speed_count = 3
 
     @property
     def percentage(self) -> int | None:
@@ -58,11 +59,6 @@ class InsteonFanEntity(InsteonEntity, FanEntity):
             return None
         return ranged_value_to_percentage(SPEED_RANGE, self._insteon_device_group.value)
 
-    @property
-    def speed_count(self) -> int:
-        """Flag supported features."""
-        return 3
-
     async def async_turn_on(
         self,
         percentage: int | None = None,