The HFAD is installed for free in the living room by default but it is not illegal to remove the HFAD and install it somewhere else as long as at least one is installed in the home. By the way, you should not put it in the kitchen because it will cause false alarms. I think your HFAD should have a manual stating that "It will have to be installed... at least 3 metres away from the kitchen and away from any sources of smoke, so as to avoid false alarms."