diff --git a/Arduino/BTCDieselHeater/src/OLED/ExperimentalSettingsScreen.cpp b/Arduino/BTCDieselHeater/src/OLED/ExperimentalSettingsScreen.cpp
index ad377b1..500de3e 100644
--- a/Arduino/BTCDieselHeater/src/OLED/ExperimentalSettingsScreen.cpp
+++ b/Arduino/BTCDieselHeater/src/OLED/ExperimentalSettingsScreen.cpp
@@ -37,7 +37,7 @@
 static const int Line3 = 14;
 static const int Line2 = 27;
 static const int Line1 = 40;
-static const int Column = 75;
+static const int Column = 70;
 
 static const int plugPowers[] = { 35, 40, 45, 80, 85, 90};
 
@@ -79,8 +79,8 @@ CExperimentalSettingsScreen::show()
     }
     else {
       _printInverted(_display.xCentre(), 0, " Experimental ", true, eCentreJustify);
-      _printMenuText(67, Line2, "Thermostat:", false, eRightJustify);
-      _printMenuText(67, Line1, "Window:", false, eRightJustify);
+      _printMenuText(65, Line2, "Thermostat:", false, eRightJustify);
+      _printMenuText(65, Line1, "Window:", false, eRightJustify);
       sprintf(msg, "%.1f", _window);
       _printMenuText(Column, Line1, msg, _rowSel == 1);
       switch(_thermoMode) {
diff --git a/Arduino/BTCDieselHeater/src/Utility/BTC_JSON.cpp b/Arduino/BTCDieselHeater/src/Utility/BTC_JSON.cpp
index 23ecd91..0ecaff5 100644
--- a/Arduino/BTCDieselHeater/src/Utility/BTC_JSON.cpp
+++ b/Arduino/BTCDieselHeater/src/Utility/BTC_JSON.cpp
@@ -86,6 +86,12 @@ void interpretJsonCommand(char* pLine)
 		else if(strcmp("FanMax", it->key) == 0) {
 			setFanMax(it->value.as<short>());
 		}
+		else if(strcmp("ThermostatMethod", it->key) == 0) {
+			NVstore.setThermostatMethodMode(it->value.as<unsigned char>());
+		}
+		else if(strcmp("ThermostatWindow", it->key) == 0) {
+			NVstore.setThermostatMethodWindow(it->value.as<float>());
+		}
 		else if(strcmp("Thermostat", it->key) == 0) {
 			if(!setThermostatMode(it->value.as<unsigned char>())) {  // this request is blocked if OEM controller active
         JSONmoderator.reset("ThermoStat");   
@@ -199,6 +205,23 @@ bool makeJSONString(CModerator& moderator, char* opStr, int len)
   return bSend;
 }
 
+bool makeJSONStringEx(CModerator& moderator, char* opStr, int len)
+{
+  StaticJsonBuffer<800> jsonBuffer;               // create a JSON buffer on the stack
+  JsonObject& root = jsonBuffer.createObject();   // create object to add JSON commands to
+
+	bool bSend = false;  // reset should send flag
+
+  bSend |= moderator.addJson("ThermostatMethod", NVstore.getThermostatMethodMode(), root); 
+  bSend |= moderator.addJson("ThermostatWindow", NVstore.getThermostatMethodWindow(), root); 
+
+  if(bSend) {
+		root.printTo(opStr, len);
+  }
+
+  return bSend;
+}
+
 // the way the JSON timer strings are crafted, we have to iterate over each timer's parameters
 // individually, the JSON name is always the same for each timer, the payload IDs the specific
 // timer
@@ -237,6 +260,16 @@ void updateJSONclients(bool report)
       sendWebServerString( jsonStr );
     }
   }
+  // update extended params
+  {
+    if(makeJSONStringEx(JSONmoderator, jsonStr, sizeof(jsonStr))) {
+      if (report) {
+        DebugPort.print("JSON send: "); DebugPort.println(jsonStr);
+      }
+      getBluetoothClient().send( jsonStr );
+      sendWebServerString( jsonStr );
+    }
+  }
   // update timer parameters
   bool bNewTimerInfo = false;
   for(int tmr=0; tmr<14; tmr++) 
diff --git a/Arduino/BTCDieselHeater/src/Utility/BTC_JSON.h b/Arduino/BTCDieselHeater/src/Utility/BTC_JSON.h
index c76a0a4..da65ecc 100644
--- a/Arduino/BTCDieselHeater/src/Utility/BTC_JSON.h
+++ b/Arduino/BTCDieselHeater/src/Utility/BTC_JSON.h
@@ -28,6 +28,7 @@
 extern char defaultJSONstr[64];
 
 bool makeJSONString(CModerator& moderator, char* opStr, int len);
+bool makeJSONStringEx(CModerator& moderator, char* opStr, int len);
 bool makeJSONTimerString(int channel, char* opStr, int len);
 void updateJSONclients(bool report);