diff --git a/custom_components/localtuya/climate.py b/custom_components/localtuya/climate.py
index fc6fac1..c14c369 100644
--- a/custom_components/localtuya/climate.py
+++ b/custom_components/localtuya/climate.py
@@ -213,6 +213,10 @@ class LocaltuyaClimate(LocalTuyaEntity, ClimateEntity):
         self._conf_hvac_mode_set = HVAC_MODE_SETS.get(
             self._config.get(CONF_HVAC_MODE_SET), {}
         )
+        
+        self._conf_hvac_onoff_separate = self._config.get(CONF_HVAC_ONOFF_SEPARATE)
+        self._conf_hvac_onoff_dp = self._config.get(CONF_HVAC_ONOFF_DP)
+
         self._conf_hvac_fan_mode_dp = self._config.get(CONF_HVAC_FAN_MODE_DP)
         self._conf_hvac_fan_mode_set = HVAC_FAN_MODE_SETS.get(
             self._config.get(CONF_HVAC_FAN_MODE_SET), {}
@@ -387,6 +391,11 @@ class LocaltuyaClimate(LocalTuyaEntity, ClimateEntity):
         if hvac_mode == HVACMode.OFF:
             await self._device.set_dp(False, self._dp_id)
             return
+        if self._conf_hvac_onoff_separate:
+            if hvac_mode == HVACMode.OFF:
+                await self._device.set_dp(False, self._conf_hvac_onoff_dp)
+            else:
+                await self._device.set_dp(True, self._conf_hvac_onoff_dp)
         if not self._state and self._conf_hvac_mode_dp != self._dp_id:
             await self._device.set_dp(True, self._dp_id)
             # Some thermostats need a small wait before sending another update