Contact a supplier such as AICO for guidance. Last time I looked, wired smoke and heat alarms are only permissible in England, no battery types are allowed in rented properties and they must all signal an alarm to each other wirelessly. They don't fall under BS7671 apart from the mains connection.
Contact a supplier such as AICO for guidance. Last time I looked, wired smoke and heat alarms are only permissible in England, no battery types are allowed in rented properties and they must all signal an alarm to each other wirelessly. They don't fall under BS7671 apart from the mains connection.
That was my understanding as well but thought I might be getting confused with new work. The Government document in the link does not say that. It says batteries are acceptable although it is dated 2015. It says the same on another site i looked at as well which is why i questioned it.
