diff --git a/custom_components/healthbox/const.py b/custom_components/healthbox/const.py
index 0437382..cdbd630 100644
--- a/custom_components/healthbox/const.py
+++ b/custom_components/healthbox/const.py
@@ -32,7 +32,7 @@
     {
         vol.Required(cv.CONF_DEVICE_ID): cv.string,
         vol.Required("boost_level"): vol.All(int, vol.Range(min=10, max=200)),
-        vol.Required("boost_timeout"): vol.All(int, vol.Range(min=5, max=240)),
+        vol.Required("boost_timeout"): vol.All(int, vol.Range(min=5, max=720)),
     }
 )
 
diff --git a/custom_components/healthbox/services.yaml b/custom_components/healthbox/services.yaml
index 6798110..04c624d 100644
--- a/custom_components/healthbox/services.yaml
+++ b/custom_components/healthbox/services.yaml
@@ -28,7 +28,7 @@ start_room_boost:
       selector:
         number:
           min: 5
-          max: 240
+          max: 720
           step: 1
           mode: slider
           unit_of_measurement: minutes