Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: Apr 3, 2026
@alec-morrow I'm coming to the realisation that this is indeed the problem. There is a single zone and no electronic mixer. We have a VRC700 indoors i...
@colin do you know or can you measure the flow temp to and from your radiators and ufh? Upstairs still freezing, rads cold despite 3 litres per minute...
Posted by: @colin Posted by: @webcmg @colin You know you want to get the problem sorted when you get out of bed to set this up! I also ...
No, I think there is a pump for each manifold and actuators for each zone. Will try this if Colin's approach isn't working. Thanks.
@colin You know you want to get the problem sorted when you get out of bed to set this up! I also have room temp mod set to "none". Do you have Adap...
Thanks going to give this a try...
And I found out that it was Vaillant themselves who 'outsourced' the system design... sigh. @colin assume your setup has a controlled mixer?
Wow, this sounds incredible. When you say max assume you mean any TRVs and thermostats at say 25 deg c or something? What is your desired temp set at ...
Immersion is off at the switch - how might I identify a backup heater? I think the difference in values is probably just a timing issue.
@Derek-m @kev-m @alec-morrow @mike-patrick @mattengineer General update. Vaillant attended and resetup the controller and checked the glycol levels...
Does anyone happen to know the current month energy consumption update interval for the 700/6 controller? It certainly isn't realtime (no idea why no...
Yes, thank you. This is extremely helpful.
Latest Posts
-
I'm the general case no (at least not yet). But if ins...
By JamesPa , 18 minutes ago
-
RE: GivEnergy inverter tripping due to over-voltage?
Thanks for that info. Yes, I'm well aware that GivEne...
By Transparent , 43 minutes ago
-
RE: Cooling with air to water heat pumps
Very sensible Unfortunately I fear that's too simple...
By JamesPa , 5 hours ago
-
RE: Indevolt Batteries UK Support & Info Thread
Good morning. I just came across your website. Was ho...
By iRadiate , 10 hours ago
-
RE: Failed Heat Pump Install: IWA Claim Rejected
Many of the estimates we received mention IWA and RECC....
By Batpred , 21 hours ago
-
RE: Rural burning – I've had enough
Same here in Finland. It's strictly forbidden ...
By upnorthandpersonal , 22 hours ago
-
RE: Renewables & Heat Pumps in the News
Something worth flagging... we've just published a news...
By Mars , 22 hours ago
-
RE: Renewable Heating Hub Homeowners' Q&A Podcast
The Homeowners' Q&A podcast is back... I've changed...
By Mars , 22 hours ago
-
RE: Anyone concerned about GivEnergy?
I have already signed up with Axle so yes, that takes c...
By KevH , 24 hours ago
-
@batpred Would it pass the airbnb feedback test no. I...
By EtchedPixels , 2 days ago
-
A quick update... we've just launched the beta version ...
By Mars , 2 days ago
-
RE: Who Actually Owns a Heat Pump in Britain? We Asked. Here Is What We Found.
The age part doesn't surprise me - only 25% of UK home ...
By EtchedPixels , 2 days ago
-
RE: Home automation and the cloud; is there a better way?
Nothing you've said there, @etchedpixels, is something ...
By Majordennisbloodnok , 2 days ago
-
I've heard from others living in the vicinity of Derril...
By Transparent , 2 days ago
