diff --git a/src/devices/thermostat.cpp b/src/devices/thermostat.cpp
index 4e4e6323f..d1f018194 100644
--- a/src/devices/thermostat.cpp
+++ b/src/devices/thermostat.cpp
@@ -3734,7 +3734,9 @@ void Thermostat::register_device_values() {
                               DeviceValueType::INT,
                               FL_(ibaMinExtTemperature),
                               DeviceValueUOM::DEGREES,
-                              MAKE_CF_CB(set_minexttemp));
+                              MAKE_CF_CB(set_minexttemp),
+                              -30,
+                              0);
         register_device_value(DeviceValueTAG::TAG_DEVICE_DATA,
                               &tempsensor1_,
                               DeviceValueType::SHORT,
@@ -3800,12 +3802,8 @@ void Thermostat::register_device_values() {
                               MAKE_CF_CB(set_wwDisinfectHour),
                               0,
                               23);
-        register_device_value(DeviceValueTAG::TAG_DEVICE_DATA_WW,
-                              &wwMaxTemp_,
-                              DeviceValueType::UINT,
-                              FL_(wwMaxTemp),
-                              DeviceValueUOM::DEGREES,
-                              MAKE_CF_CB(set_wwMaxTemp));
+        register_device_value(
+            DeviceValueTAG::TAG_DEVICE_DATA_WW, &wwMaxTemp_, DeviceValueType::UINT, FL_(wwMaxTemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_wwMaxTemp), 60, 80);
         register_device_value(DeviceValueTAG::TAG_DEVICE_DATA_WW,
                               &wwOneTimeKey_,
                               DeviceValueType::BOOL,
@@ -4140,14 +4138,16 @@ void Thermostat::register_device_values_hc(std::shared_ptr<Thermostat::HeatingCi
             tag, &hc->daytemp, DeviceValueType::UINT, DeviceValueNumOp::DV_NUMOP_DIV2, FL_(daytemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_daytemp));
         register_device_value(
             tag, &hc->nighttemp, DeviceValueType::UINT, DeviceValueNumOp::DV_NUMOP_DIV2, FL_(nighttemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_nighttemp));
-        register_device_value(tag, &hc->designtemp, DeviceValueType::UINT, FL_(designtemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_designtemp));
+        register_device_value(tag, &hc->designtemp, DeviceValueType::UINT, FL_(designtemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_designtemp), 30, 90);
         register_device_value(tag,
                               &hc->offsettemp,
                               DeviceValueType::INT,
                               DeviceValueNumOp::DV_NUMOP_DIV2,
                               FL_(offsettemp),
                               DeviceValueUOM::DEGREES_R,
-                              MAKE_CF_CB(set_offsettemp));
+                              MAKE_CF_CB(set_offsettemp),
+                              -5,
+                              5);
         register_device_value(tag,
                               &hc->holidaytemp,
                               DeviceValueType::UINT,
@@ -4159,13 +4159,13 @@ void Thermostat::register_device_values_hc(std::shared_ptr<Thermostat::HeatingCi
         register_device_value(tag, &hc->summertemp, DeviceValueType::UINT, FL_(summertemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_summertemp), 9, 25);
         register_device_value(tag, &hc->summermode, DeviceValueType::ENUM, FL_(enum_summer), FL_(summermode), DeviceValueUOM::NONE);
         register_device_value(tag, &hc->holidaymode, DeviceValueType::BOOL, FL_(holidaymode), DeviceValueUOM::NONE);
-        register_device_value(tag, &hc->nofrosttemp, DeviceValueType::INT, FL_(nofrosttemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_nofrosttemp));
+        register_device_value(tag, &hc->nofrosttemp, DeviceValueType::INT, FL_(nofrosttemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_nofrosttemp), -20, 10);
         register_device_value(
             tag, &hc->nofrostmode, DeviceValueType::ENUM, FL_(enum_nofrostmode), FL_(nofrostmode), DeviceValueUOM::NONE, MAKE_CF_CB(set_nofrostmode));
-        register_device_value(tag, &hc->roominfluence, DeviceValueType::UINT, FL_(roominfluence), DeviceValueUOM::DEGREES_R, MAKE_CF_CB(set_roominfluence));
-        register_device_value(tag, &hc->minflowtemp, DeviceValueType::UINT, FL_(minflowtemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_minflowtemp));
-        register_device_value(tag, &hc->maxflowtemp, DeviceValueType::UINT, FL_(maxflowtemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_maxflowtemp));
-        register_device_value(tag, &hc->flowtempoffset, DeviceValueType::UINT, FL_(flowtempoffset), DeviceValueUOM::DEGREES_R, MAKE_CF_CB(set_flowtempoffset));
+        register_device_value(tag, &hc->roominfluence, DeviceValueType::UINT, FL_(roominfluence), DeviceValueUOM::DEGREES_R, MAKE_CF_CB(set_roominfluence), 0, 10);
+        register_device_value(tag, &hc->minflowtemp, DeviceValueType::UINT, FL_(minflowtemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_minflowtemp), 5, 70);
+        register_device_value(tag, &hc->maxflowtemp, DeviceValueType::UINT, FL_(maxflowtemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_maxflowtemp), 30, 90);
+        register_device_value(tag, &hc->flowtempoffset, DeviceValueType::UINT, FL_(flowtempoffset), DeviceValueUOM::DEGREES_R, MAKE_CF_CB(set_flowtempoffset), 0, 20);
         register_device_value(
             tag, &hc->heatingtype, DeviceValueType::ENUM, FL_(enum_heatingtype), FL_(heatingtype), DeviceValueUOM::NONE, MAKE_CF_CB(set_heatingtype));
         register_device_value(tag, &hc->reducemode, DeviceValueType::ENUM, FL_(enum_reducemode), FL_(reducemode), DeviceValueUOM::NONE, MAKE_CF_CB(set_reducemode));
@@ -4175,8 +4175,8 @@ void Thermostat::register_device_values_hc(std::shared_ptr<Thermostat::HeatingCi
         register_device_value(tag, &hc->holiday, DeviceValueType::STRING, FL_(tpl_holidays), FL_(holidays), DeviceValueUOM::NONE, MAKE_CF_CB(set_holiday));
         register_device_value(tag, &hc->vacation, DeviceValueType::STRING, FL_(tpl_holidays), FL_(vacations), DeviceValueUOM::NONE, MAKE_CF_CB(set_vacation));
         register_device_value(tag, &hc->program, DeviceValueType::ENUM, FL_(enum_progMode2), FL_(program), DeviceValueUOM::NONE, MAKE_CF_CB(set_program));
-        register_device_value(tag, &hc->pause, DeviceValueType::UINT, FL_(pause), DeviceValueUOM::HOURS, MAKE_CF_CB(set_pause));
-        register_device_value(tag, &hc->party, DeviceValueType::UINT, FL_(party), DeviceValueUOM::HOURS, MAKE_CF_CB(set_party));
+        register_device_value(tag, &hc->pause, DeviceValueType::UINT, FL_(pause), DeviceValueUOM::HOURS, MAKE_CF_CB(set_pause), 0, 99);
+        register_device_value(tag, &hc->party, DeviceValueType::UINT, FL_(party), DeviceValueUOM::HOURS, MAKE_CF_CB(set_party), 0, 99);
         register_device_value(tag,
                               &hc->tempautotemp,
                               DeviceValueType::UINT,
@@ -4184,9 +4184,9 @@ void Thermostat::register_device_values_hc(std::shared_ptr<Thermostat::HeatingCi
                               FL_(tempautotemp),
                               DeviceValueUOM::DEGREES,
                               MAKE_CF_CB(set_tempautotemp));
-        register_device_value(tag, &hc->noreducetemp, DeviceValueType::INT, FL_(noreducetemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_noreducetemp));
-        register_device_value(tag, &hc->reducetemp, DeviceValueType::INT, FL_(reducetemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_reducetemp));
-        register_device_value(tag, &hc->vacreducetemp, DeviceValueType::INT, FL_(vacreducetemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_vacreducetemp));
+        register_device_value(tag, &hc->noreducetemp, DeviceValueType::INT, FL_(noreducetemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_noreducetemp), -30, 10);
+        register_device_value(tag, &hc->reducetemp, DeviceValueType::INT, FL_(reducetemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_reducetemp), -20, 10);
+        register_device_value(tag, &hc->vacreducetemp, DeviceValueType::INT, FL_(vacreducetemp), DeviceValueUOM::DEGREES, MAKE_CF_CB(set_vacreducetemp), -20, 10);
         register_device_value(
             tag, &hc->vacreducemode, DeviceValueType::ENUM, FL_(enum_reducemode), FL_(vacreducemode), DeviceValueUOM::NONE, MAKE_CF_CB(set_vacreducemode));
         register_device_value(tag,