electric switch on boiler - what is right ?

[mbell]

did not know exact subject line for this anyway here goes
recently had a new combi boiler installed with a timer switch which is all wired up and working fine
However i noticed that the installer has run the electric cable from the boiler and this is simply plugged into a wall socket with a normal plug.
Is this normal or should there be a proper isolater switch fitted. basically need to know what the rules are with this and safe etc.
any advise greatly appreciated
thanks
Mark

 

[namsag]

It is perfectly ok to have the boiler on a plug , the only thing is it should be plugged into a socket without a switch .
Reason being most socket switches only turn the live off , Where as if you remove the plug you know it is completly disconnected