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: Mar 17, 2025
Hello again all, So our system had been running for a few weeks as described above. The other morning I heard the unit running for a very long tim...
Hi Andy, I know my controller shows two different curves. As I mention above we have UFH downstairs and Rads upstairs. Couldn't tell you how it ad...
Hi Alec, Thanks for the reply. Sorry, everything is Vaillant apart from the UFH central unit, and the room stats down stairs. Slowly getting th...
@saz Ill give them a bell and see what they say. In the mean time it has been changed, lets see what happens. On another forum it was mentioned that...
Happy Sunday all, Quick update to our setup. I have replaced all the 18 year old Drayton RTS 1 UFH controllers for Neostat V2 units. They not o...
@transparent Hi there. We are lucky are in some ways where we live, we have unusually high amounts of good light here which will definitely help w...
@saz It is an aroTHERM plus according to the label. VWL 75/6 A 230V S2
hi @saz We do have one of these When I mention master unit(not sure in the terminology is correct) but we have a VR720F This is what I mean....
Hi @saz, There are indeed two units. The downstairs one is the master that does all the controlling, the second unit is a slave that allows us to c...
Hi there, The unit is a 7kW unit, fitted on the north facing rear of the house. I have started tweaking already. Reduced the curve from 0.8 downst...
- 27 Forums
- 2,811 Topics
- 66.5 K Posts
- 1,784 Online
- 7,217 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Why don't people choose heat pumps?
It's swings and roundabouts - during off-peak periods t...
By Temperature_Gradient , 49 minutes ago
-
RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
... And that's being generous! I'll tell you a littl...
By SusannaSaunders , 7 hours ago
-
RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 8 hours ago
-
RE: Electricity price predictions
great session Reminds me why some politicians can be ha...
By Batpred , 8 hours ago
-
RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Absolutely agree. The massive Hager CU my vaillant requ...
By Batpred , 8 hours ago
-
RE: How much of your renewable and home setup would still work if the internet went down?
absolutely agree. even if many providers see that extra...
By Batpred , 9 hours ago
-
RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 12 hours ago
-
I thought the cr*p came first and the biofuel came afte...
By Majordennisbloodnok , 16 hours ago
-
RE: Aerotherm and weather compensation
@jamespa I replied yesterday with detailed readings whi...
By DavidB , 2 days ago
-
RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
By davidnolan22 , 3 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Very nice. we’ve been super soggy here, but rather m...
By Papahuhu , 4 days ago
-
RE: DIY powerflushing tutorial
Interesting! I toyed with the idea too. But I installed...
By bobflux , 4 days ago
-
RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews Agree with the others on sequence: loft first...
By mk1234 , 4 days ago
-
RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
Heating been on for 4 weeks now, continuous. It's 6C o...
By trebor12345 , 5 days ago


