If it's enough for you, then fair enough, but, as I said, it's very unlikely that it could not have had at least a 20A MCB.It is for 7 sockets in a living room and study - with nothing that draws much. He said even if I needed to I could run a couple of Electric heaters.
Strictly speaking, a 16A MCB is not quite adequate for two 2kW heaters (e.g. fan heaters) and only adequate for just over one 3kW one.
Kind Regards, John