diff --git a/Boiler_2_Stufig_Mit_Fueler/module.php b/Boiler_2_Stufig_Mit_Fueler/module.php
index 619e784..a49e4dd 100644
--- a/Boiler_2_Stufig_Mit_Fueler/module.php
+++ b/Boiler_2_Stufig_Mit_Fueler/module.php
@@ -98,11 +98,20 @@ class Boiler_2_Stufig_Mit_Fueler extends IPSModule
 
         $boilerTemp = GetValue($this->ReadPropertyInteger("Boilertemperatur"));
         $boilerPT1 = GetValue($this->ReadPropertyInteger("Boilerfuehler_PT1"));
+        IPS_LogMessage("Boiler", "Boilertemperatur : " . $boilerTemp);
+        IPS_LogMessage("Boiler", "Boilerfuehler_PT1 : " . $boilerPT1);
+
+
+
         // PT1
         $time_constant = 120; // Zeitkonstante in Sekunden (1 Minute)
         $delta_t = 30; // Zeitdifferenz zwischen den Messungen (30 Sekunden)
         $alpha = $delta_t / ($time_constant + $delta_t);
-        $this->SetValue("Boilertemperatur", $boilerTemp  + $alpha * ($boilerPT1 - $boilerTemp ));
+        $newBoilerTemp = $boilerTemp + $alpha * ($boilerPT1 - $boilerTemp);
+        $this->SetValue("Boilertemperatur", $newBoilerTemp);
+        //$this->SetValue("Boilertemperatur", $boilerTemp  + $alpha * ($boilerPT1 - $boilerTemp ));
+        IPS_LogMessage("Boiler", "Neue Boilertemp. " . $newBoilerTemp);
+
 
         $minTemp = $this->GetValue("Mindesttemperatur");
         $maxTemp = $this->GetValue("Maximaltemperatur");
diff --git a/library.json b/library.json
index f969753..0c6ebb9 100644
--- a/library.json
+++ b/library.json
@@ -6,7 +6,7 @@
     "compatibility": {
         "version": "7.1"
     },
-    "version": "0.237",
+    "version": "0.238",
 
     "build": 0,
     "date": 0