diff --git a/Boiler_2_Stufig_Mit_Fueler/module.php b/Boiler_2_Stufig_Mit_Fueler/module.php
index adf6895..34de44e 100644
--- a/Boiler_2_Stufig_Mit_Fueler/module.php
+++ b/Boiler_2_Stufig_Mit_Fueler/module.php
@@ -99,13 +99,13 @@ class Boiler_2_Stufig_Mit_Fueler extends IPSModule
 
         $boilerTemp = GetValue($this->ReadPropertyInteger("Boilertemperatur"));
         $boilerPT1 = GetValue($this->ReadPropertyInteger("Boilerfuehler_PT1"));
-
+        $boilerPT1Filtered = $this->ReadVariableInteger("Boilerfuehler_PT1_Filtered");
         // 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);
-        $newBoilerTemp = $boilerTemp + $alpha * ($boilerPT1 - $boilerTemp);
-        $this->SetValue("Boilerfuehler_PT1", $newBoilerTemp);
+        $newBoilerTemp = $boilerPT1Filtered + $alpha * ($boilerPT1 - $boilerPT1Filtered);
+        $this->SetValue("Boilertemperatur_nacht_PT1", $newBoilerTemp);
         //$this->SetValue("Boilertemperatur", $boilerTemp  + $alpha * ($boilerPT1 - $boilerTemp ));
 
         
diff --git a/library.json b/library.json
index 5a9edfc..0aa5ee5 100644
--- a/library.json
+++ b/library.json
@@ -6,7 +6,7 @@
     "compatibility": {
         "version": "7.1"
     },
-    "version": "0.241",
+    "version": "0.242",
 
     "build": 0,
     "date": 0