Hi BluePlanet.
I'm guessing the service guy turned off the anti-cycling feature; Vaillant Anti-Cycling Mode Explained - Compare The Boiler Market - https://comparetheboilermarket.co.uk/vaillant-anti-cycling-mode possibly as part of the service and checks.
Why this might cause additional noise...
That's a good pic, EG 93!
When you look at it, you'll notice that the 'outlet' pipe on the right is slightly above - or nigh-on level - with that leaking joint. That means that the whole 'U' part is always full of water, so if the O-ring there isn't perfect, it will seep.
Best first step is to...
Thanks everyone.
I don't suspect a current leak, but was sometimes aware of the smell during the installation phase.
Looks as tho' it can be DIYed, but it should have Building Control oversight and sign-off afterwards, just like with many normal building jobs (structural, etc).
Thanks.
Ok, I think I found the answer. Yes, it can be DIYed, but should have Building Control certification afterwards.
Anyone know how to check whether this has been done - will it be part of the online planning portal, or does a request need to be made to Build Control?
Hi. Asking for a relative whose neighbour seemingly DIYed an oil tank replacement. She was aware of 'oil' smells at regular times in the weeks following this, although that has since died down.
Is there a way of checking whether the installation was registered, a bit like boiler installs?
Thanks.
Thanks again, Best.
Yes, I've just seen how much they cost! And if their reliability record is worse even than gas combis, then that's a point really worth considering.
Cheers - really appreciate the info.
Thank you Best.
Are there any reasons to hate oil combis more than gas ones?
I know that combis in general are a compromise when it comes to hot flow, but for such a small house I'd have thought it ideal? Or is it to do with oil-fired combis?
If 15kW is the max combi output, that would...
Hello all.
We will likely have to move soon so we can find a new home which has room to have a separate annexe built for mum in law. As it'll be out in the sticks, the fuel supply will most likely be oil.
A few questions on this, please:
1) Do they make small oil boilers - ideally combi types...
Hi Chris.
Horrible situation.
It would be nice to know that GasSafe was on your side and have the means of blocking anyone else's attempt to sign of this job, but I fear they can't and won't.
It would also be nice to think that all other GasSafe installers would smell a rat and not get...
There is a large difference between pumped and non-pumped accumulators. The latter relies wholly on the existing water pressure for its delivery performance, and if you reckon that will be only be at around 1.5+ bar at the top flat, then I don't think it's going to be successful. Also, lower...
Hi Dan.
Can you confirm, please: for these 4 flats you are "installing a 40kw boiler, 15 rads, 4 Heating zones plus a hot water zone. Each flat has a kitchen sink, toilet, basin and electric shower" - so that's two hot and four cold outlets in total in each flat?
And the boiler and unvented...
I'm not clear what the flat setup is: are you saying there are two flats side by side on the ground floor, and two flats side by side on an upper floor? And that one of these upper flats is yours?
If so, that means you have a neighbour to your side at the exact same level? And they have no...
It does sound as tho' your combi is being fed directly from the mains (which is normal), and also that your mains is being shared by the flat below (not so good).
As far as I understand, all the WB will do is to confirm that the pressure and flow at ground level is compliant. What the flats...
Thanks all.
The whole reason for going combi is that a location for an unvented cylinder of any type would be awkward - no easy way of providing a gravity drain for it. A combi would be much easier, and it is only a 1.5 bedroom flat with one bath/shower.
Cheers, here's hoping the plumber is...
Thanks.
That's all I was after, Jon - that is was possible to actually check that the flow is suitable rather having having to measure numerous lengths of pipe and do the calcs.
The new system boiler is working fine, but when my bro had it fitted last year, we explored at the time whether...