diff --git a/homeassistant/components/ambiclimate/climate.py b/homeassistant/components/ambiclimate/climate.py
index fc192d8658f..58b2334260e 100644
--- a/homeassistant/components/ambiclimate/climate.py
+++ b/homeassistant/components/ambiclimate/climate.py
@@ -153,10 +153,15 @@ class AmbiclimateEntity(ClimateEntity):
 
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
     _attr_target_temperature_step = 1
-    _attr_supported_features = ClimateEntityFeature.TARGET_TEMPERATURE
+    _attr_supported_features = (
+        ClimateEntityFeature.TARGET_TEMPERATURE
+        | ClimateEntityFeature.TURN_OFF
+        | ClimateEntityFeature.TURN_ON
+    )
     _attr_hvac_modes = [HVACMode.HEAT, HVACMode.OFF]
     _attr_has_entity_name = True
     _attr_name = None
+    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, heater: AmbiclimateDevice, store: Store[dict[str, Any]]) -> None:
         """Initialize the thermostat."""