diff --git a/Boiler_2_Stufig_Mit_Fueler/module.php b/Boiler_2_Stufig_Mit_Fueler/module.php
index 1c25e2c..eb67186 100644
--- a/Boiler_2_Stufig_Mit_Fueler/module.php
+++ b/Boiler_2_Stufig_Mit_Fueler/module.php
@@ -98,12 +98,12 @@ class Boiler_2_Stufig_Mit_Fueler extends IPSModule
 
        
         $boilerPT1 = GetValue($this->ReadPropertyInteger("Boilerfuehler_PT1"));
-        $boilerPT1Filtered = $this->GetValue("Boilertemperatur");
+        $boilerTemp = $this->GetValue("Boilertemperatur");
         // PT
         $time_constant = 120; // Zeitkonstante in Sekunden (1 Minute)
         $delta_t = 30; // Zeitdifferenz zwischen den Messungen (30 Sekunden)
         $alpha = $delta_t / ($time_constant + $delta_t);
-        $newBoilerTemp = $boilerPT1Filtered + $alpha * ($boilerPT1 - $boilerPT1Filtered);
+        $newBoilerTemp = $boilerTemp + $alpha * ($boilerPT1 - $boilerTemp);
         $this->SetValue("Boilertemperatur", $newBoilerTemp);
         //$this->SetValue("Boilertemperatur", $boilerTemp  + $alpha * ($boilerPT1 - $boilerTemp ));
 
diff --git a/library.json b/library.json
index 04c3641..cbe7658 100644
--- a/library.json
+++ b/library.json
@@ -6,7 +6,7 @@
     "compatibility": {
         "version": "7.1"
     },
-    "version": "0.246",
+    "version": "0.247",
 
     "build": 0,
     "date": 0