removed

48" front door removed, that wall is now internal. The outer leaf was conc. and the inner leaf is breeze. As I need a conventional internal door there now, does it make much difference if I narrow the doorway using Celcons, or should I stick to conc. Thanks, Dain

Random alarms starting beeping every 30 seconds last night. I removed the heads, hoovered them and changed the batteries. Still beeping. So i've turned off the mains power and removed all the heads and they are still beeping even though there is no head (the thing with the battery and the test...