Working on an Unvented Indirect Cyclinder with a Leaking T&P valve

[Shadow750Rider]

We have a 6yr old Titan 125 ltr Unvented Indirect HW Cyclinder in one of our estate properties and I suspect the T&P valve has failed as it's leaking quite badly into the tundish & onwards, and looks like it has for a while.

Now I do not have an Unvented ticket (Is that a G3?), & I have been told by my boss that I do not need a ticket to work on the cylinder. I have stated that I believe I do and so, perhaps understandably, I do not believe him, especially as he's already said he wants to save money in calling out a far more experienced and qualified Heating Engineer friend of his.

So I am looking for clarification of the facts and a way out of this before I get too far in, or something goes wrong later. He's the sort of guy who will leave me carrying the can. Of course I could just refuse but I'd like to have some facts to back me up and help me insist on the correct course of action to fix the cylinder.

Fortunately the new valve is not "off the shelf" and had to be ordered, frustrating him further, but it is likely to turn up on Friday.

So to clarify my question, am I right in my meagre understanding of Building Regs that such a cylinder must be installed and maintained by a "Competant Installer", i.e. G3 ticketed? If so, where can I get such information as proof?
Thanks,
Daz

 

[grahamgas]

Yep you need your unvented ticket to work on this.

Anything over 15 litres unvented, then you need the ticket.

Graham

 

[roisinroisin21]

Ticket required

 

[Toddyplumb]

Building Regs G3 state " competent person "

 

[Puddle]

As said quote the regs and tell him to ring the insurers up and see what they say,soon will be getting in the correct qualified plumber to do the works


The cost of getting a registered plumber in against the possible cost if anything went wrong is nothing

imho

 

[Shadow750Rider]

Thank you to all. Your advice and support is very much appreciated. Another web-search found me the WRc-NSF site which gave me the information I need to quote, should it be necessary to do so. The insurance line is bound to be a bit of a clincher though, never mind the fact that if something major did go wrong, the tenant nor the bank staff directly below the flat aren't going to be best pleased by the flood.
Thanks again,
Daz

 

[dontknowitall]

It's not too difficult to obtain the ticket. A few nights of reading some boring papers then a day's course with exam at the end.

 

[Shadow750Rider]

Thank you for the suggestion. I'll give it some thought but it hardly seems worth it as we've only one unvented cylinder on the estate and that property may well be handed back to the Duke of Norfolk's estate in the next couple of years. Things are rather slow to change around here. One property still hasn't got electricity.
Daz