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: Jun 28, 2025
@m1kegibson If you are able to access the service menu settings and navigate to the thermistor readings, I suspect you may find the answer as to wh...
@anca1808 I'd certainly backup the suggestion from @rhh2348 to check the consumption as measured by the unit - I know it is the main culprit in your h...
Thanks @abernyte - I remember seeing this video before, the technicalities are still beyond me but the general idea is useful to understand. Like...
@clockworks Looking at your flow temperature graphs, the rise before the pump stops is not particularly big. You could try this: Under Operation set...
The default setting is that the DHW is always 'on' but actually runs when the tank temperature drops below the max temp drop value. To force the DHW t...
"cycling is bad" - cycling can either indicate the inevitable result of the heat demand falling below the heat output of the pump or it can be a failu...
For clarity: The only reference to system volume I can find in the documentation I have relating to my EcoDan refers to the space heating circuit. The...
@alsocold123456 Only the primary circuit runs during the defrost cycle so shouldn't be taking heat out of the water sitting in the secondary heating ...
Amps - yes, you did say. Not the most useful measure to have graphed though!To your examples:Lets say 34 is the temperature at which the radiators to ...
I think this might be a different set of parameters for the user to interact with than the typical uk/european ones. That lower green line I commented...
As someone with an over-sized HP and the lower level of performance this entails for much of the year this strategy has a lot of appeal! I have a good...
I find the graphs somewhat hard to reconcile against the references to 31 or 32 @ 3° ambient as in both the flow temperature seems to be targeted at t...
SPONSORS
Degrees of Separation
Latest Posts
-
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 , 5 hours ago
-
RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
By Batpred , 5 hours ago
-
RE: Electricity price predictions
great session Reminds me why some politicians can be ha...
By Batpred , 6 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 , 6 hours ago
-
RE: Why don't people choose heat pumps?
With a heatpump tariff, it should be cheaper to operate...
By Batpred , 6 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 , 6 hours ago
-
RE: Octopussy cosy 6 experience
People who have a Cosy appear generally to be happy wit...
By JamesPa , 10 hours ago
-
I thought the cr*p came first and the biofuel came afte...
By Majordennisbloodnok , 13 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 , 3 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
SPONSORS
