diff --git a/base/hostconfig/wohnz.sls b/base/hostconfig/wohnz.sls
index faeb68f..e71d626 100644
--- a/base/hostconfig/wohnz.sls
+++ b/base/hostconfig/wohnz.sls
@@ -1,3 +1,21 @@
 hardware:
   raspberrypi:
-    has_fan: True
+    fan:
+      has_fan: True
+      controller: /usr/local/bin/fan_ctrl.py
+      service_name: fancontroller
+
+systemd:
+  service:
+   fancontroller:
+      Unit:
+        Description: Controlling the Fan via PWM
+        After: base.target
+
+      Service:
+        ExecStart: /usr/local/bin/fan_ctrl.py 
+        User: pi
+        Group: gpio
+        Environment: RPI_FANPIN=21 
+      Install:
+        WantedBy: multi-user.target