Expense is, indeed, your problem. As for your initial post, the regulations require, amongst other things, that the CU be 'accessible' and that it is adequately protected against various environmental influences (like extremes of ambient temperature). There can clearly be debate as to what constitutes 'accessible', but the temperature issue is definitely a relevant one.The first post matters. Temperatutes of lofts, exoense, etc, is outside the remit.
Kind Regards, John
