diff --git a/Boiler_2_Stufig_Landwirtschaft/module.php b/Boiler_2_Stufig_Landwirtschaft/module.php
index afbcd0e..42c59bd 100644
--- a/Boiler_2_Stufig_Landwirtschaft/module.php
+++ b/Boiler_2_Stufig_Landwirtschaft/module.php
@@ -115,7 +115,7 @@ class Boiler_2_Stufig_Landwirtschaft extends IPSModule
     
     public function canBoilerReachTemperature($boilervolumen, $boilerTemper, $nextTemp, $remainingTime, $vollleistung) {
         $tempDiff = $nextTemp - $boilerTemper;
-        $requiredHeat = calculateRequiredHeat($boilervolumen, $tempDiff);
+        $requiredHeat = $this->calculateRequiredHeat($boilervolumen, $tempDiff);
         $availableHeat = $vollleistung * $remainingTime * 3600; // Leistung in Watt * Zeit in Sekunden
         return $availableHeat >= $requiredHeat;
     }
@@ -208,12 +208,12 @@ class Boiler_2_Stufig_Landwirtschaft extends IPSModule
         $vollLeistung = $this->ReadPropertyInteger("BoilerLeistungVolllast");
 
 
-        $nextEntry = getNextTimeAndTemperature($this->ReadPropertyInteger("Zeitplan"));
+        $nextEntry = $this->getNextTimeAndTemperature($this->ReadPropertyInteger("Zeitplan"));
         if ($nextEntry !== null) {
-            $remainingTime = calculateRemainingTime($nextEntry['Uhrzeit']);
+            $remainingTime = $this->calculateRemainingTime($nextEntry['Uhrzeit']);
             $nextTemp = $nextEntry['Solltemperatur'];
 
-        if (!canBoilerReachTemperature($this->ReadPropertyInteger("Boilervolumen"), $boilerTemp, $nextTemp, $remainingTime, $vollLeistung)) {
+        if (!$this->canBoilerReachTemperature($this->ReadPropertyInteger("Boilervolumen"), $boilerTemp, $nextTemp, $remainingTime, $vollLeistung)) {
             $minTemp = $nextTemp;
         }
     }
diff --git a/library.json b/library.json
index d0ccf91..6b746d3 100644
--- a/library.json
+++ b/library.json
@@ -6,7 +6,7 @@
     "compatibility": {
         "version": "7.1"
     },
-    "version": "1.030",
+    "version": "1.031",
     "build": 0,
     "date": 0
 }
\ No newline at end of file