Charles,
Unless there is a specific reason why you need to comply with UK regulations I'd
think you'd want to consult the AMBSC-Copper for that information, the
Australian miniature copper boiler code.
Harry Wade
Nashville USA
-----Original Message-----
>From: charles <mortimer@...>
>what is the british standard of boiler thickness to obtain a certificate on 2.5
gauge is it 2mm thick or code l 3mmthick tube just checking before i buy some
copper
>charles