cheers lads.
the thing is i run a property company and i,ve got combies all over the place and never seen it fed from hot.
this one was fitted by our gas safe fitter and i only spotted it last night.just rang him and he recons not to spec but it will be ok.
talk about full of bull.i new it was wrong but just thought i,d ask you guys for a bit of confomation.
i,ll change the bloody thing myself.