diff --git a/function/modules.py b/function/modules.py
index f0368c8..ac5946d 100644
--- a/function/modules.py
+++ b/function/modules.py
@@ -154,7 +154,7 @@ class heating_function(common_base):
     SUMMER_TEMPERATURE = 5
 
     class value_timeout_list(object):
-        MAX_DELAY = 3
+        MAX_DELAY = 10
 
         def __init__(self):
             self.__data__ = []
@@ -208,12 +208,17 @@ class heating_function(common_base):
         # cyclic task initialisation
         self.ct = task.periodic(1, self.cyclic_task)
         self.ct.run()
+        self.ct2 = task.periodic(5 * 60, self.cyclic_task_tx_setpoint)
+        self.ct2.run()
 
     def timer_expired(self, device, data, key):
         self.set(self.KEY_TEMPERATURE_SETPOINT, self[self.KEY_USER_TEMPERATURE_SETPOINT])
         self.heating_valve.logger.info('Timer expired. returning to regular temperature setpoint %.1f°C.',
                                        self[self.KEY_TEMPERATURE_SETPOINT])
 
+    def cyclic_task_tx_setpoint(self, rt):
+        self.heating_valve.set_heating_setpoint(self.get(self.KEY_TEMPERATURE_SETPOINT))
+
     def cyclic_task(self, rt):
         timer_value = self[self.KEY_BOOST_TIMER] - self.ct.cycle_time
         if self[self.KEY_BOOST_TIMER] <= 0: