Recent content by HarryW

No sweat on this now, found break in eBus wire between boiler and rf base station, all now resolved and all up and running, let the learning begin!

@ScottishGasMan falling at first hurdle… the base station green led is not flashing to allow pairing… help..

The Vaillant is also 2 pipe system, but only has one 230v control input for ‘heat’, hence it doesn’t know if it’s a demand for CH or DHW when using 3rd party stuff like Hive. Hence going for Vaillant controls for a Vaillant boiler which are eBus low voltage controls. The 418 open vent (and 618...

Interestingly went to the Mr Central Heating shop, the VR66 advertised and picked up is actually the VR66/2 on the box, so that’s comforting. Also the VRC720F is now labelled the VRC720F/2 too. I can but presume the /2 denotes in both cases it’s the updated variant despite the Vaillant part...

Re the VR66/2 I’ve read on here a few times the part number between that and the VR66 is the same. Others have also reported that they function the same in monozone mode acting effectively as a VR65 legacy mode. I suppose my question is if the part numbers are the same how do I know whether I’ve...

I did a thread before Christmas on a whole sale change on the CH/DHW system in my house. One if my bug bears was BG insist on using Hive controls, which as far I can see is just a glorified 230v on off switch which ignores most of the features modern boilers have to give. I updated the original...

Another quick one, the wiring centre…. Seems that the same part number seems to cover both VR66 and VR66/2? Plenty of VR66 at good prices out there not many VR66/2 showing up though? Am I right in thinking for a simple single heating zone and DHW via a tank the VR66 does the same job and is...

I thought I’d update this rather than start a similar thread. I’ve reached an agreement with BG re the controls for system. They have agreed to not fit the Hive controls and will fit Vaillant controls that I supply and commission the system. It’ll be open vent Ecotec Plus 418 with the...

I think the Vaillant when it gets DHW demand goes flat out, hence the greater output, usually for less than 30 minutes dependent on tank size. When it gets a CH demand it’s using its modulation. With full vaillant controls it knows the tank and room temps, not just there’s a heat demand.

I’ve had this exact conversation with BG recently for my system change. Why am I paying for a modern boiler that can do so many things and you won’t use them and insist that you fit Hive which is a simple 240v single output switch control to the boiler for heat on or heat off regardless if it’s...

To clarify I’m talking about the Ecotec plus 418 heat only when I said open vented above…

Many thanks for the link, I follow the urban plumber on YouTube as he’s a good watch regardless. I’ve ponder this all again and have reversed my first thought, thinking an open vented system might be simpler, cheaper and more reliable. I think using the Vaillant controls is still need to fully...

Not heard of X plan, did a quick google and the results are sparse, but it reads like a S plan where you have DHW priority at a higher heat to warm the tank quickly. Any links to a diagram as I could find one. Re controls that’s my bug bear with BG who propose using the latest modulation type...

If it makes any difference it’ll be an S plan configuration….

First post, but I have trawled through previous posts as much as I can. I currently have a 22 year old system that’s a bit like triggers new broom… last straw was this week when I got an At Risk notice on the Ali flue corroded through, which was replaced quickly under my BG home care package...