On Thu, 22 Nov 2018 20:50:03 +0000, Max Demian wrote:

However the most disturbing one is a flat that a tenant moved into
4
weeks ago. The mains had been disconnected from the smoke, taped
up and
shoved into the ceiling as well as the battery having been
removed.
Almost certainly like that when she moved in 4 weeks ago.

Implying that the Land Lord didn't check the detector as part of any
"pre delivery inspection".

If they are linked burning toast in one flat will set them all off.

Which depending on the buildings construction (and modifications)
might be a good thing... However such a system has to be fairly
immune to false alarms from burning toast, or the smokes will get
disabled. If the kitchen opens into the hallway the chances are it
won't be immune to false alarms. A hallway detector needs to be a
smoke based one not temperature.

--
Cheers
Dave.