Just a query, for fitting into a kitchen, to satisfy electrical regulations, did you fit an IP rated or waterproofed transformer? Is it necessary for regs?
The regs say that it must be suitable for the environment.
There are some locations where the IP rating is SPECIFIED by the regs, e.g. bathroom/swimming pool etc,
In my case, the transformer will be placed in the bottom half of a tall kitchen larder unit, situated underneath my new Boiler which has just been installed and which is also housed by the unit.