diff --git a/brewpi.py b/brewpi.py
index 0f9086a..f1b2a9d 100644
--- a/brewpi.py
+++ b/brewpi.py
@@ -210,7 +210,7 @@ if __name__ == '__main__':
 			"theta"			: 20,
 			"C"				: 4190,
 			"M"				: 20,
-			"L"				: 0.02,
+			"L"				: 0.05,
 			"Td"			: 12,
 			"kn"			: 0.2
 		}
diff --git a/brewpi.ui b/brewpi.ui
index 1b8f9fe..3c7701a 100644
--- a/brewpi.ui
+++ b/brewpi.ui
@@ -519,9 +519,9 @@
    <widget class="QGroupBox" name="groupBox">
     <property name="geometry">
      <rect>
-      <x>370</x>
+      <x>380</x>
       <y>70</y>
-      <width>111</width>
+      <width>131</width>
       <height>401</height>
      </rect>
     </property>
@@ -531,9 +531,9 @@
     <widget class="QwtSlider" name="Slider_pwr_soll">
      <property name="geometry">
       <rect>
-       <x>10</x>
+       <x>22</x>
        <y>40</y>
-       <width>63</width>
+       <width>81</width>
        <height>311</height>
       </rect>
      </property>
@@ -556,7 +556,7 @@
     <widget class="QCheckBox" name="checkbox_heater_activate">
      <property name="geometry">
       <rect>
-       <x>20</x>
+       <x>30</x>
        <y>370</y>
        <width>81</width>
        <height>23</height>
@@ -567,7 +567,7 @@
      </property>
     </widget>
    </widget>
-   <widget class="QWidget" name="">
+   <widget class="QWidget" name="layoutWidget">
     <property name="geometry">
      <rect>
       <x>700</x>
@@ -1980,7 +1980,7 @@
    <widget class="QGroupBox" name="groupBox_2">
     <property name="geometry">
      <rect>
-      <x>500</x>
+      <x>540</x>
       <y>70</y>
       <width>111</width>
       <height>401</height>
diff --git a/brewpi_gui.py b/brewpi_gui.py
index f65aca2..a1f875c 100644
--- a/brewpi_gui.py
+++ b/brewpi_gui.py
@@ -73,6 +73,9 @@ class Window(QtWidgets.QMainWindow, Ui_MainWindow):
 		print("on_tempctrl_changed {}".format(msg))
 		if "Soll" in msg:
 			self.lcdNumber.display(str(msg['Soll']))
+			if self.slider_temp_soll_initial_update:
+				self.Slider_temp_soll.setValue(msg['Soll'])
+				self.slider_temp_soll_initial_update = False
 
 	def on_heater_changed(self, msg):
 		print("on_heater_changed {}".format(msg))
diff --git a/brewpi_win.py b/brewpi_win.py
index 6f4707c..d11b8cf 100644
--- a/brewpi_win.py
+++ b/brewpi_win.py
@@ -192,10 +192,10 @@ class Ui_MainWindow(object):
         self.tab_2.setObjectName("tab_2")
         self.horizontalTabWidget.addTab(self.tab_2, "")
         self.groupBox = QtWidgets.QGroupBox(self.centralwidget)
-        self.groupBox.setGeometry(QtCore.QRect(370, 70, 111, 401))
+        self.groupBox.setGeometry(QtCore.QRect(380, 70, 131, 401))
         self.groupBox.setObjectName("groupBox")
         self.Slider_pwr_soll = QwtSlider(self.groupBox)
-        self.Slider_pwr_soll.setGeometry(QtCore.QRect(10, 40, 63, 311))
+        self.Slider_pwr_soll.setGeometry(QtCore.QRect(22, 40, 81, 311))
         self.Slider_pwr_soll.setLowerBound(0.0)
         self.Slider_pwr_soll.setUpperBound(100.0)
         self.Slider_pwr_soll.setScaleMaxMajor(7)
@@ -203,15 +203,15 @@ class Ui_MainWindow(object):
         self.Slider_pwr_soll.setScaleStepSize(0.0)
         self.Slider_pwr_soll.setObjectName("Slider_pwr_soll")
         self.checkbox_heater_activate = QtWidgets.QCheckBox(self.groupBox)
-        self.checkbox_heater_activate.setGeometry(QtCore.QRect(20, 370, 81, 23))
+        self.checkbox_heater_activate.setGeometry(QtCore.QRect(30, 370, 81, 23))
         self.checkbox_heater_activate.setObjectName("checkbox_heater_activate")
-        self.widget = QtWidgets.QWidget(self.centralwidget)
-        self.widget.setGeometry(QtCore.QRect(700, 70, 328, 422))
-        self.widget.setObjectName("widget")
-        self.verticalLayout = QtWidgets.QVBoxLayout(self.widget)
+        self.layoutWidget = QtWidgets.QWidget(self.centralwidget)
+        self.layoutWidget.setGeometry(QtCore.QRect(700, 70, 328, 422))
+        self.layoutWidget.setObjectName("layoutWidget")
+        self.verticalLayout = QtWidgets.QVBoxLayout(self.layoutWidget)
         self.verticalLayout.setContentsMargins(0, 0, 0, 0)
         self.verticalLayout.setObjectName("verticalLayout")
-        self.lcdNumber_3 = QtWidgets.QLCDNumber(self.widget)
+        self.lcdNumber_3 = QtWidgets.QLCDNumber(self.layoutWidget)
         self.lcdNumber_3.setMinimumSize(QtCore.QSize(0, 120))
         palette = QtGui.QPalette()
         brush = QtGui.QBrush(QtGui.QColor(0, 0, 0))
@@ -367,7 +367,7 @@ class Ui_MainWindow(object):
         self.lcdNumber_3.setProperty("value", 2037.0)
         self.lcdNumber_3.setObjectName("lcdNumber_3")
         self.verticalLayout.addWidget(self.lcdNumber_3)
-        self.lcdNumber = QtWidgets.QLCDNumber(self.widget)
+        self.lcdNumber = QtWidgets.QLCDNumber(self.layoutWidget)
         self.lcdNumber.setMinimumSize(QtCore.QSize(0, 120))
         palette = QtGui.QPalette()
         brush = QtGui.QBrush(QtGui.QColor(0, 0, 0))
@@ -521,7 +521,7 @@ class Ui_MainWindow(object):
         self.lcdNumber.setProperty("value", 2037.0)
         self.lcdNumber.setObjectName("lcdNumber")
         self.verticalLayout.addWidget(self.lcdNumber)
-        self.lcdNumber_2 = QtWidgets.QLCDNumber(self.widget)
+        self.lcdNumber_2 = QtWidgets.QLCDNumber(self.layoutWidget)
         self.lcdNumber_2.setMinimumSize(QtCore.QSize(0, 120))
         palette = QtGui.QPalette()
         brush = QtGui.QBrush(QtGui.QColor(0, 0, 0))
@@ -676,7 +676,7 @@ class Ui_MainWindow(object):
         self.lcdNumber_2.setObjectName("lcdNumber_2")
         self.verticalLayout.addWidget(self.lcdNumber_2)
         self.groupBox_2 = QtWidgets.QGroupBox(self.centralwidget)
-        self.groupBox_2.setGeometry(QtCore.QRect(500, 70, 111, 401))
+        self.groupBox_2.setGeometry(QtCore.QRect(540, 70, 111, 401))
         self.groupBox_2.setObjectName("groupBox_2")
         self.Slider_temp_soll = QwtSlider(self.groupBox_2)
         self.Slider_temp_soll.setGeometry(QtCore.QRect(10, 40, 63, 311))