diff --git a/.gitmodules b/.gitmodules
index 4fd1c93..fa2204f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "report"]
 	path = report
 	url = https://git.mount-mockery.de/pylib/report.git
+[submodule "task"]
+	path = task
+	url = https://git.mount-mockery.de/pylib/task.git
diff --git a/devices/__init__.py b/devices/__init__.py
index f62af80..a204780 100644
--- a/devices/__init__.py
+++ b/devices/__init__.py
@@ -60,7 +60,6 @@ class base(dict):
     TX_TYPE = -1
     TX_FILTER_DATA_KEYS = []
     #
-    RX_LOG_INFO_ALWAYS_KEYS = []
     RX_KEYS = []
     RX_IGNORE_TOPICS = []
     RX_IGNORE_KEYS = []
@@ -96,8 +95,10 @@ class base(dict):
             self[key] = data
             # Filter, if needed
             self.unpack_filter(key)
-            logger.log(logging.INFO if key in self.RX_LOG_INFO_ALWAYS_KEYS or prev_value != self.get(key) else logging.DEBUG,
-                       "Received data for (%s) %s - %s", self.topic, key, str(self.get(key)))
+            if prev_value != self.get(key):
+                logger.info("Received new data for (%s) %s - %s", self.topic, key, str(self.get(key)))
+            else:
+                logger.debug("Received data for (%s) %s - %s", self.topic, key, str(self.get(key)))
             self.callback_caller(key, self[key])
         elif key not in self.RX_IGNORE_KEYS:
             logger.warning('Got a message from \"%s\" with unparsed content "%s"', self.topic, key)
@@ -143,6 +144,7 @@ class base(dict):
                 logger.error(
                     "Unknown tx type. Set TX_TYPE of class to a known value")
             else:
+                logger.info("Sending data for (%s) %s - %s", self.topic, key, str(data))
                 if self.TX_TYPE == self.TX_DICT:
                     self.mqtt_client.send('/'.join([self.topic, self.TX_TOPIC]), json.dumps({key: data}))
                 else:
@@ -452,7 +454,6 @@ class tradfri_button(base):
     KEY_BATTERY = "battery"
     KEY_ACTION = "action"
     #
-    RX_LOG_INFO_ALWAYS_KEYS = [KEY_ACTION]
     RX_KEYS = [KEY_LINKQUALITY, KEY_BATTERY, KEY_ACTION]
     RX_IGNORE_TOPICS = []
     RX_IGNORE_KEYS = ['update']
@@ -485,13 +486,14 @@ class nodered_gui(base):
     KEY_STATE = "state"
     KEY_BRIGHTNESS = "brightness"
     KEY_COLOR_TEMP = "color_temp"
+    KEY_HEATING_BOOST = "heating_boost"
+    KEY_HEATING_SETPOINT = "heating_setpoint"
     #
     TX_TOPIC = 'set'
     TX_TYPE = base.TX_VALUE
     TX_FILTER_DATA_KEYS = []
     #
-    RX_LOG_INFO_ALWAYS_KEYS = []
-    RX_KEYS = [KEY_STATE, KEY_BRIGHTNESS, KEY_COLOR_TEMP]
+    RX_KEYS = [KEY_STATE, KEY_BRIGHTNESS, KEY_COLOR_TEMP, KEY_HEATING_BOOST, KEY_HEATING_SETPOINT]
     RX_IGNORE_TOPICS = [KEY_FEEDBACK + '/' + TX_TOPIC, KEY_ENABLE + '/' + TX_TOPIC]
     RX_FILTER_DATA_KEYS = []
 
@@ -516,6 +518,16 @@ class nodered_gui(base):
         """rv: [0, ..., 100]"""
         return self.get(self.KEY_COLOR_TEMP)
 
+    @property
+    def heating_boost(self):
+        """rv: [True, False]"""
+        return self.get(self.KEY_HEATING_BOOST)
+
+    @property
+    def heating_(self):
+        """rv: [5, ..., 30]"""
+        return self.get(self.KEY_HEATING_SETPOINT)
+
     #
     # TX
     #
@@ -525,3 +537,61 @@ class nodered_gui(base):
     def enable(self, data):
         """data: [True, False]"""
         self.pack(self.KEY_ENABLE, data)
+
+
+class brennenstuhl_heatingvalve(base):
+    KEY_LINKQUALITY = "linkquality"
+    KEY_BATTERY = "battery"
+    KEY_HEATING_SETPOINT = "current_heating_setpoint"
+    KEY_TEMPERATURE = "local_temperature"
+    #
+    KEY_AWAY_MODE = "away_mode"
+    KEY_CHILD_LOCK = "child_lock"
+    KEY_PRESET = "preset"
+    KEY_SYSTEM_MODE = "system_mode"
+    KEY_VALVE_DETECTION = "valve_detection"
+    KEY_WINDOW_DETECTION = "window_detection"
+    #
+    TX_TOPIC = 'set'
+    TX_VALUE = 0
+    TX_DICT = 1
+    TX_TYPE = base.TX_DICT
+    TX_FILTER_DATA_KEYS = []
+    #
+    RX_KEYS = [KEY_LINKQUALITY, KEY_BATTERY, KEY_HEATING_SETPOINT, KEY_TEMPERATURE]
+    RX_IGNORE_TOPICS = [TX_TOPIC]
+    RX_IGNORE_KEYS = [KEY_AWAY_MODE, KEY_CHILD_LOCK, KEY_PRESET,
+                      KEY_SYSTEM_MODE, KEY_VALVE_DETECTION, KEY_WINDOW_DETECTION]
+    RX_FILTER_DATA_KEYS = []
+
+    def __init__(self, mqtt_client, topic):
+        super().__init__(mqtt_client, topic)
+        self.mqtt_client.send(self.topic + '/' + self.TX_TOPIC, json.dumps(
+            {self.KEY_WINDOW_DETECTION: "ON", self.KEY_CHILD_LOCK: "UNLOCK", self.KEY_VALVE_DETECTION: "ON", self.KEY_SYSTEM_MODE: "heat"}))
+
+    def warning_call_condition(self):
+        return self.get(self.KEY_BATTERY) <= BATTERY_WARN_LEVEL
+
+    def warning_text(self):
+        return "Low battery level detected for %s. Battery level was %.0f%%." % (self.topic, self.get(self.KEY_BATTERY))
+
+    #
+    # RX
+    #
+    @property
+    def linkqulity(self):
+        return self.get(self.KEY_LINKQUALITY)
+
+    @property
+    def heating_setpoint(self):
+        return self.get(self.KEY_HEATING_SETPOINT)
+
+    @property
+    def temperature(self):
+        return self.get(self.KEY_TEMPERATURE)
+
+    #
+    # TX
+    #
+    def set_heating_setpoint(self, setpoint):
+        self.pack(self.KEY_HEATING_SETPOINT, setpoint)
diff --git a/function/__init__.py b/function/__init__.py
index 6ce1a72..1dcf698 100644
--- a/function/__init__.py
+++ b/function/__init__.py
@@ -6,8 +6,8 @@ from function.ground_floor_west import ground_floor_west_floor, ground_floor_wes
 from function.first_floor_west import first_floor_west_julian, first_floor_west_living
 from function.first_floor_east import first_floor_east_floor, first_floor_east_kitchen, first_floor_east_dining, first_floor_east_sleep_madi, first_floor_east_living
 import inspect
+from function import modules
 
-# TODO: implement heating function sleep_madi
 # TODO: implement circulation pump
 # TODO: implement switch off functionality (except of switch off button transportation)
 # TODO: implement garland (incl. day events like sunset, sunrise, ...)
@@ -40,6 +40,7 @@ class all_functions(object):
         # additional functionality
         #
         self.init_input_device_sleep_madi_functionality()
+        self.init_heating_functionality()
 
     def init_input_device_sleep_madi_functionality(self):
         #
@@ -57,6 +58,10 @@ class all_functions(object):
         self.ffe_button_tradfri_sleep.add_callback(devices.tradfri_button.KEY_ACTION, None,
                                                    self.ffe_sleep_madi.fade_light)
 
+    def init_heating_functionality(self):
+        self.ffe_heating_sleep_madi = modules.heating_function_brennenstuhl(
+            self.mqtt_client, "zigbee_og_e/radiator/sleep_madi", 20, "gui/ffe_bo_sleep_madi", "gui/ffe_ts_sleep_madi", "gui/ffe_bl_sleep_madi")
+
     def devicelist(self):
         if self.__devices__ is None:
             self.__devices__ = []
diff --git a/function/modules.py b/function/modules.py
new file mode 100644
index 0000000..57f1db2
--- /dev/null
+++ b/function/modules.py
@@ -0,0 +1,86 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+
+import devices
+import logging
+import task
+
+try:
+    from config import APP_NAME as ROOT_LOGGER_NAME
+except ImportError:
+    ROOT_LOGGER_NAME = 'root'
+logger = logging.getLogger(ROOT_LOGGER_NAME).getChild(__name__)
+
+
+class heating_function_brennenstuhl(object):
+    RETURN_TO_DEFAULT_TIME = 45 * 60
+    BOOST_TEMP_OFFSET = 5
+
+    def __init__(self, mqtt_client, topic_valve, default_temperature, topic_boost, topic_setpoint, topic_led):
+        self.ct = task.periodic(1, self.cyclic_task)
+        #
+        self.topic = topic_valve
+        self.default_temperature = default_temperature
+        #
+        self.heating_valve = devices.brennenstuhl_heatingvalve(mqtt_client, topic_valve)
+        self.heating_valve.set_heating_setpoint(self.default_temperature)
+        self.heating_valve.add_callback(
+            devices.brennenstuhl_heatingvalve.KEY_HEATING_SETPOINT, None, self.heating_setpoint_actions)
+
+        self.gui_value_temp_setp = devices.nodered_gui(mqtt_client, topic_setpoint)
+        self.gui_value_temp_setp.add_callback(
+            devices.nodered_gui.KEY_HEATING_SETPOINT, None, self.heating_setpoint_actions)
+
+        self.gui_button_boost = devices.nodered_gui(mqtt_client, topic_boost)
+        self.gui_button_boost.add_callback(None, None, self.boost_actions)
+
+        self.gui_led_boost = devices.nodered_gui(mqtt_client, topic_led)
+
+        #
+        self.return_to_default_timer = None
+        self.return_to_default_setpoint = None
+        self.gui_led_boost.set_feedback(False)
+        #
+        self.ct.run()
+
+    def heating_setpoint_actions(self, device, key, data):
+        if device.topic == self.heating_valve.topic:
+            # valve setpoint action
+            self.gui_value_temp_setp.set_feedback(data)
+            if data > self.default_temperature:
+                if data != self.return_to_default_setpoint:
+                    logger.info('Got heating setpoint (%.1f°C) \"%s\" with deviation to the default value (%.1f°C). Starting timer for returning to default.',
+                                data, self.topic, self.default_temperature)
+                    self.return_to_default_timer = self.RETURN_TO_DEFAULT_TIME
+                    self.return_to_default_setpoint = data
+                    self.gui_led_boost.set_feedback(True)
+            else:
+                if self.return_to_default_timer is not None:
+                    logger.info('Deleting timer \"%s\" for returning to default.', self.topic)
+                self.return_to_default_timer = None
+                self.return_to_default_setpoint = None
+                self.gui_led_boost.set_feedback(False)
+        elif device.topic == self.gui_value_temp_setp.topic:
+            # user setpoint action
+            logger.info('Setpoint change \"%s\" to %.1f°C', self.topic, data)
+            self.default_temperature = data
+            self.heating_valve.set_heating_setpoint(self.default_temperature)
+            self.return_to_default_timer = None
+            self.return_to_default_setpoint = None
+            self.gui_led_boost.set_feedback(False)
+
+    def boost_actions(self, davice, key, data):
+        logger.info('Starting boost mode \"%s\" with setpoint %.1f°C.',
+                    self.topic, self.default_temperature + self.BOOST_TEMP_OFFSET)
+        self.heating_valve.set_heating_setpoint(self.default_temperature + self.BOOST_TEMP_OFFSET)
+
+    def cyclic_task(self, rt):
+        if self.return_to_default_timer is not None:
+            self.return_to_default_timer -= self.ct.cycle_time
+            if self.return_to_default_timer <= 0:
+                logger.info('Return to default timer expired \"%s\".', self.topic)
+                self.heating_valve.set_heating_setpoint(self.default_temperature)
+                self.return_to_default_timer = None
+                self.return_to_default_setpoint = None
+                self.gui_led_boost.set_feedback(False)
diff --git a/function/rooms.py b/function/rooms.py
index c979cd9..8d0beab 100644
--- a/function/rooms.py
+++ b/function/rooms.py
@@ -2,7 +2,6 @@
 # -*- coding: utf-8 -*-
 #
 
-import config
 import devices
 import logging
 
diff --git a/mqtt b/mqtt
index 1921bc6..79ac04f 160000
--- a/mqtt
+++ b/mqtt
@@ -1 +1 @@
-Subproject commit 1921bc619a9c4af682a7707d6fe58069478c59cd
+Subproject commit 79ac04ffdb61ea61334b2bb90bee565472957657
diff --git a/smart_brain.py b/smart_brain.py
index 9bda580..6b2a062 100644
--- a/smart_brain.py
+++ b/smart_brain.py
@@ -10,7 +10,8 @@ logger = logging.getLogger(config.APP_NAME)
 
 if __name__ == "__main__":
     if config.DEBUG:
-        report.stdoutLoggingConfigure(([config.APP_NAME, logging.DEBUG], ), report.LONG_FMT)
+        report.appLoggingConfigure(None, None, ((config.APP_NAME, logging.DEBUG), ),
+                                   fmt=report.SHORT_FMT, host='localhost', port=19996)
     else:
         report.stdoutLoggingConfigure(((config.APP_NAME, logging.INFO),
                                       (config.APP_NAME+'.devices', logging.WARNING)), report.SHORT_FMT)
diff --git a/task b/task
new file mode 160000
index 0000000..af35e83
--- /dev/null
+++ b/task
@@ -0,0 +1 @@
+Subproject commit af35e83d1f07fd4cb9070bdb77cf1f3bdda3a463