Unvented cylinders DIY installation

[Alan Braggins]

No, 15 litres is 15 litres or less.

[...]

That's not true of all Nu-Heat supplied stores. Mine has a coil. (In fact two, one DHW, one underfloor heating.)

[Doctor Drivel]

The one with the plate heat exchanger does not come under G3. If you have an internal DHW take off coil and it is pressurised, it comes under G3. That is pretty clear.

[Ron Lowe]

As the OP originally asked, do the G3 regs apply to Scotland at all?

Your link (

) is a link to:

2000 No. 2531 BUILDING AND BUILDINGS ***ENGLAND AND WALES*** The Building Regulations 2000

( My emphasis. )

Building regs in Scotland are different, hence no Part-P etc. ( despite B&Q posting part-P warnings at the electrical shelves, even in Scotland . ).

So the OP's question remains un-answered.

To the OP: is it possible: yes. Is it legal? Don't know. The plumbers doing the extension here at Lowe Towers didn't bat an eyelid or ask anything, nor did the the council bod who has popped in from time to time. Of course, it was a pre-existing installation in regards to our current building work, and so is not in the current scope of work, nor in anyone's spotlight.

"Dunno mate. I guess it must have been like that when we moved in."

[Doctor Drivel]

Scotland is a colony and should do what we say.

[Andy Champ]

Actually, England is a colony of Scotland. That is why Scotland has its own Government, but England is ruled by a government led by a Scot.

Andy

[Doctor Drivel]

The capital of the UK is in ENGLAND!!!!

[Roberts]

Yes we know. thats why we are in such a mess. Send them all back and let only English MPs vote on English matters

Robbie