diff --git a/tasmota/tasmota_xdrv_driver/xdrv_39_thermostat.ino b/tasmota/tasmota_xdrv_driver/xdrv_39_thermostat.ino
index 26620394a..4d341fd4d 100644
--- a/tasmota/tasmota_xdrv_driver/xdrv_39_thermostat.ino
+++ b/tasmota/tasmota_xdrv_driver/xdrv_39_thermostat.ino
@@ -1236,7 +1236,7 @@ bool ThermostatTimerArm(uint8_t ctr_output, int16_t tempVal)
   bool result = false;
   // TempVal unit is tenths of degrees celsius
   if ((tempVal >= -1000)
-    && (tempVal <= 1000)
+    && (tempVal <= 2000)
     && (tempVal >= Thermostat[ctr_output].temp_frost_protect)) {
       Thermostat[ctr_output].temp_target_level = tempVal;
       Thermostat[ctr_output].status.thermostat_mode = THERMOSTAT_AUTOMATIC_OP;
@@ -1368,7 +1368,7 @@ void ThermostatGetLocalSensor(uint8_t ctr_output) {
         value = ThermostatFahrenheitToCelsius(value, TEMP_CONV_ABSOLUTE);
       }
       if ( (value >= -1000)
-        && (value <= 1000)
+        && (value <= 2000)
         && (Thermostat[ctr_output].status.sensor_type == SENSOR_LOCAL)) {
         uint32_t timestamp = TasmotaGlobal.uptime;
         // Calculate temperature gradient if temperature value has changed
@@ -1440,7 +1440,7 @@ void CmndTempFrostProtectSet(void)
         value = (int16_t)(CharToFloat(XdrvMailbox.data) * 10);
       }
       if ( (value >= -1000)
-        && (value <= 1000)) {
+        && (value <= 2000)) {
         Thermostat[ctr_output].temp_frost_protect = value;
       }
     }
@@ -1571,7 +1571,7 @@ void CmndTempMeasuredSet(void)
         value = (int16_t)(CharToFloat(XdrvMailbox.data) * 10);
       }
       if ( (value >= -1000)
-        && (value <= 1000)
+        && (value <= 2000)
         && (Thermostat[ctr_output].status.sensor_type == SENSOR_MQTT)) {
         uint32_t timestamp = TasmotaGlobal.uptime;
         // Calculate temperature gradient if temperature value has changed
@@ -1609,7 +1609,7 @@ void CmndTempTargetSet(void)
         value = (int16_t)(CharToFloat(XdrvMailbox.data) * 10);
       }
       if ( (value >= -1000)
-        && (value <= 1000)
+        && (value <= 2000)
         && (value >= Thermostat[ctr_output].temp_frost_protect)) {
         Thermostat[ctr_output].temp_target_level = value;
       }
@@ -2061,7 +2061,7 @@ void ThermostatShow(uint8_t ctr_output, bool json)
     int16_t value = Thermostat[ctr_output].temp_measured_gradient;
     if (Thermostat[ctr_output].status.temp_format == TEMP_FAHRENHEIT) {
       value = ThermostatCelsiusToFahrenheit((int32_t)Thermostat[ctr_output].temp_measured_gradient, TEMP_CONV_RELATIVE);
-    } 
+    }
     f_temperature = value / 1000.0f;
     WSContentSend_PD(HTTP_THERMOSTAT_TEMPERATURE, D_THERMOSTAT_GRADIENT, Settings->flag2.temperature_resolution, &f_temperature, c_unit);
     WSContentSend_P(HTTP_THERMOSTAT_DUTY_CYCLE, ThermostatGetDutyCycle(ctr_output) );