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Anyone got one - it's now obsolete and hard to find? (Pressure switch mounted high towards left side of box and connected via pressure pipe to port on Flow Regulator valve) I've got a customer with a lightly-used Supreme otherwise in perfect condition!

This debate is interminably repeated..... The facts are: - the building (house, office, whatever) needs to be warm enough for its intended purpose. If YOU decide that 17 degrees (plus an extra sweater) is OK for you, then it's OK. - it's MOST unlikely that 'under-heating' a building will...

Didn't like to ask! But it took 2 guys several hours, so must have been over £300, maybe a lot more! No - one-off job. Course not! As stated, I fitted one.

As luck would have it (!), I got a call-back today to a Fernox TF1. Installed about a week ago, fine for several days, then developed a major leak yesterday. The problem was in the cunning arrangement of sealing rings and spacers supplied with the gadget. You fit DIFFERENT colour coded sets...

I got called out to investigate a problem heating system. It had not worked properly for nearly 6 months, since a new boiler and UFH had been installed. Apparently, no powerflush had been done on the old pipework and radiators BEFORE the new boiler went in but HomeServe (actually, a...

Note that this Class Action dates from 2003. And Dupont etc. did NOT admit liability back then. Anyone get more recent info on this case and any others, anywhere, affecting PB, PEX or multilayer pipe?

NO!!! THRICE NO!!! The VR10 is INSTEAD of the cylinder stat, not in addition!

Late in the day! But there are a couple of issues here..... - very unlikely that a domestic property would have a cylinder coil large enough to take 30kW. Having said that, it's still a very good idea to set the boiler output in DHW mode to match the capacity of the cylinder coil, whatever...

If you raise the working pressure on these, what about the preload in the internal accumulator? I'd have thought that ought to be raised to...?

Problem is that given the shelter they get from the workings of the Sale of Goods, the manufacturers see whatever they spend on installer incentives, etc as marketing expenses, not an essential cost of staying in business! In the end, the more installers who think 'Biasi' (or 'Vokera'!) when...

What happens when filling loop left open and dripping PRV freezes. More muppet customer than horrid boiler!

Do you reckon that ANY manufacturer (even Vokera!) is going to stick their hand up to take on liabilities that the Sale of Goods Act, etc. has allowed to avoid so far? Can't see why they would ever take on liability voluntarily!

Tony Back in the real world including carpets, tiled floors, furniture, etc. it's difficult or impossible to even work out which is the radiator 'nearest' to the main Return! And anyway, I DID actually try to force the Return temperature up by wedging the DHW zone valve open, so that there...

Unfortunately, you have a great deal more faith in the effectiveness of bypasses than I do, especially 15mm ones. The problem here is LOW Return temperature, not runaway Flow temperature. At the various flow rates involved, the contribution of the bypass to the temperature of the Return is...

Unfortunately, Step 1 is Read the Fine Manual! You're asking a lot of questions that ARE answered in there - eg. the Install Assistant Test function set to 50 will make the Heat Source (ie. the boiler) fire up and run to 50, but only for test purposes, to make sure everything is working and...

Message means exactly what it says: Ebus over radio has failed for some reason and the controller has noticed the problem. The boiler has also noticed and adopted the 'default option' of heating-on, which is usually better than heating-off, in practice. If the VRT and its batteries are both...

Exactly which lockout do you get? There are several type ('blocking codes' which stop it temporarily) and real lockouts which need a reset to get the boiler going again. I assume it's blocking codes you get. What temperature is the boiler set to?

errr.....no, not exactly. On older type boilers, the potentiometer used to be wired to form a 'resistance bridge' circuit with the Flow or Hot Water thermister (temperature sensors) inside the boiler. When the bridge was 'in balance' (ie. the setting of the pot and resistance of the sensor...

Agile! Tsk, tsk. Trolling again.... (As any fule kno, a low loss header IS - or at least behaves like - the 'magic valve' mentioned.) But before getting into major pipe surgery to find a place to put one and fit it, I wanted to check for ANY alternative. Having talked to Vaillant...