Thanks to Pensdown and others who have answered helpfully.
It's very obvious that there's a lot of uncertainty about the question. I was aware of that to a point having asked similar things of sparkies over the years, I hoped something more definitive may have crystallised!
This stipulation makes requirements of a cupboard
with its door open, which is a bit odd:
1. The cupboard must prevent access to the boiler by a person who is anywhere in zone 1 or 2 even with the cupboard the door open.
So you're standing in front of the cupboard, door open, and you mustn't be able to put your arms in...
OK, so cupboard gets its door screwed shut, only for access for maintenance.
The NIC article (though not quite a normative document!!) seems to make it clear that a suitable enclosure does allow putting the boiler in a lower-numbered zone.
With regard to asking questions here of pro Electricians - why not? Corgi qualification covers practically nothing electrical. People ask questions all the time on the plumbing forum about where gas pipes can go, etc.
Securespark obviously hasn't asked many questions of boiler manufacturers. I do it most weeks. All they
want to do is read out what it says in the manual. They aren't qualified electricians on the end of the phone, they aren't empowered to give instruction on cupboards (beyond pointing to the BS, which doesn't address these exact issues). This forum, (and others) is a way of putting a question before a lot of specialists who may have the reference to the normative doc at their fingertips.
securespark said:
I am even more gobsmacked that you have still, despite several attempts at giving you advice, failed to contact the manufacturer's technical helpline to ask advice about your situation. They make the equipment, they know best about it.
You fail to appreciate that the question is
about IEE regs, not the damn boiler..
Your drivel about all the manufacturers say about it is refer to IEE regs does not wash.
Then try reading a few or phoning a few. Washed? You'll get drowned.
I'll spell it out. The B.M will say which zone what item (depending on timers etc) can go in. They are not in a position to
interpret IEE regs - and they are not obliged on the tech help likes, to even know them.
NO. It's just that you're wrong - AND you haven't come up with an answer.