How many smoke alarms is needed in a 150 square meter flat?

Question

I want to know how many smoke alarms is obliged in a 150 m2 flat.

Answer 1

depends on number of rooms and also if you are renting as it may the landlords responsibilty

also look at dual carbon monoxide if you have gas in the flat  

Answer 2

Depend on the number of rooms. Usually, it is one in each room.

Answer 3

3 - 1 per 50m2  

Answer 4

One in each room except kitchen and bathroom.

Answer 5

3

Answer 6

  two one at each end but not kitchen or bath room