HELP: Pressurised/Unvented cylinder - No hot water, central heating works fine

[KingK]

He was registered at the time of the install, although I cant recall if he was registered as a competent person for un-vented cylinder /Part G. I'll need to check this once he's re-registered.

Yes, I have it in writing (on Whatsapp and email) that he would register the install of the cylinder.

I've not received anything from Building Control that the cylinder has been registered (assuming I shouldn't expect anything for moving the boiler?). If he had registered the install would it not be on the Gas Safe website (assuming he's registered as a compitant person for unvented/Part G)?

I didn't hold any money back as he said the install was complete and he would register the cylinder. Hindsight!

 

[chris watkins]

I know it is a wonderful thing isn't it!!

I don't see why Gas Safe could not tell you if he had signed up to the Part G & confirm if he had or hadn't registered the installation.
It may take a month or so for the paperwork to come but there is a deadline to register the work once complete, which means you should have had it by now.

The main point is that the installation is not complete & he should be given the opportunity to complete it (& register it once compete).
Otherwise it is likely you will need to go to Law for redress.

 

[KingK]

True, I'll go back to the plumber and give him a chance to rectify.

I'll also call up Gas Safe and see is he's registered PartG and if the install has been registered or not.

Thanks for the advise all.

 

[bacon_sandwich]

Installations manuals are easy to get on internet for unvented, so you can check what he does against the manual. Its not a pretty install but hopefully it just a day to add the discharge pipes and fix the crazy zone valves. Bit worrying he has let his registration lapse, not a good sign.
Hopefully he will come back, otherwise might be worth asking around for a decent plumber to go over the install. Good luck

 

[KingK]

I'm not sure what the experts think, but not fitting the safety valves is inexcusable.

The "shocking install" / "crazy zone valves" also doesn't fill me with confidence in this guy.

I'm tempted to cut my losses and get someone reputable in - at least I'll have peace of mind that it's all in good order at the end.

 

[bacon_sandwich]

The safety valve aka pressure relief valve appears to be there (red thing) but if it does in fact relieve itself it will discharge water directly into your house roughly south of the red valve. It is supposed to discharge water outside (in a safe manner, i.e. so not to scold anyone ), also there is supposed to be a device below the red thing so you can visually check for evidence of discharge. Your property is currently at risk from water damage as is.

 

[Rob Foster]

yea is that prv just open ended or IS IT CAPPED OFF ? I worry
both are wrong capped off is really bad

 

[Best]

yea is that prv just open ended or IS IT CAPPED OFF ? I worry
both are wrong capped off is really bad

That is a bloody good point!
I think looking at the last photo that the P&T relief valve has the internal compression nut showing and hopefully it is not a 1/2” blanking plug. 😱

 

[bacon_sandwich]

eeekkk, best op take a blow up of the PRV for us to muster. Never seen a blanked off PRV (whats the point) ,so it would be a first....

 

[ShaunCorbs]

It's not blanked off it's a nut and olive but the nut is externally threaded

 

[Best]

eeekkk, best op take a blow up of the PRV for us to muster. Never seen a blanked off PRV (whats the point) ,so it would be a first..

I have seen one brand new unvented install that the plumber screwed a small lever valve directly into the pressure relief of the combination valve (which was also installed near base of cylinder). He also joined the D2 at tundish to 15mm copper and just run it out through wall at first floor level. Bizarre.
I think I read somewhere that unvented units sold in U.K. must come from factory with their P&T relief valve already fitted on cylinder. I suppose this is to ensure they are safe from exploding to make them idiot proof.