diff --git a/brewpi.py b/brewpi.py
index b8df80b..bd4cdad 100644
--- a/brewpi.py
+++ b/brewpi.py
@@ -198,7 +198,7 @@ class TcTask(ATask):
 		self.tc.set_on_changed('theta_soll_set', ChangedFloat(self.on_temp_soll_changed, prec=1).set)
 		self.tc.set_on_changed('heatrate_soll_set', ChangedFloat(self.on_rate_soll_changed, prec=1).set)
 
-		self.tc.set_theta_soll(30.0)
+		self.tc.set_theta_soll(20.0)
 		self.tc.set_heatrate_soll(1.0)
 
 		while True: