If socket stays where it is, it will be under the boiler. If boiler
leaks, that would mean water getting into the double socket...

Thus, I have to move a double socket in preparation for a new boiler.

I can move it to the left which then makes it much closer to the kitchen
sink. Whats the minimum distance required between the kitchen sink and a
wall mounted socket?

I can't move it to the right as it would then be up against the corner
of the wall so it would have to move onto the adjacent wall.

Regards,

Stephen.