diff --git a/components/pid/temp_controller.py b/components/pid/temp_controller.py
index 960dd2e..e5feb20 100644
--- a/components/pid/temp_controller.py
+++ b/components/pid/temp_controller.py
@@ -19,7 +19,7 @@ class TempController(AttributeChange):
 
 		self.pid_hold = pid.Pid(params_pid['Hold'])
 		self.pid_rate = pid.Pid(params_pid['Heat'])
-		self.theta_ist_set = 0
+		self.theta_ist_set = 20
 		self.theta_soll_set = 0
 		self.heatrate_ist_set = 0
 		self.heatrate_soll_set = 1.0
@@ -30,7 +30,7 @@ class TempController(AttributeChange):
 		self.y = 0
 		self.state = States.IDLE
 		self.use_kalman = True
-		self.kalman.initial((20, 0))
+		self.kalman.initial((self.theta_ist_set, 0))
 
 	def set_theta_ist(self, value):
 		self.theta_ist_set = value